Toyota Avalon (XX50) 2019-2022 Service & Repair Manual: System Description

Toyota Avalon (XX50) 2019-2022 Service & Repair Manual / Vehicle Interior / Meter / Gauge / Display / Meter / Gauge System(for Gasoline Model) / System Description

SYSTEM DESCRIPTION

INPUT AND OUTPUT SIGNALS OF COMBINATION METER ASSEMBLY

(a) Meter or Gauge

Item	Condition	Input/Output	Communication line	Signal	Component
Speedometer	Gauge	Input	CAN	Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
	-	Output	CAN	Vehicle speed signal (meter to other)	Related ECUs
				Speed tolerance A signal
				Speed tolerance B signal
Tachometer	Gauge	Input	CAN	Engine RPM data signal	ECM
Fuel receiver gauge	Gauge	Input	CAN	Fuel consumption signal	ECM
				Starter signal	ECM
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
			Direct line	Fuel level signal	Fuel sender gauge assembly
	-	Output	CAN	Fuel gauge indication signal	Related ECUs
				Fuel level in main tank signal	ECM
				Fuel sender voltage signal	ECM
				Fuel direct data signal	DCM (Telematics transceiver)*
				Fuel initial signal
				Fuel average signal
Engine coolant temperature receiver gauge	Gauge	Input	CAN	Engine coolant temperature signal	ECM

*: w/ Manual (SOS) Switch

(b) Warning or Indicator

Item	Condition	Input/Output	Communication line	Signal	Component
Master warning light	Comes on/Blinks	-	-	-	-
Brake warning light / red (malfunction)	Comes on	Input	CAN	Brake warning light control flag signal	Skid control ECU (Brake actuator assembly)
			Direct line	Brake reservoir level warning switch signal	Brake fluid level warning switch (Brake master cylinder reservoir assembly)
			Direct line	Vacuum warning switch signal	Vacuum warning switch assembly
Driver or front passenger seat belt warning light	Comes on/Blinks	Input	CAN	Driver seat belt buckle switch signal	Main body ECU (Multiplex network body ECU)
				Parking brake switch signal	Main body ECU (Multiplex network body ECU)
				Shift selection P signal	ECM
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
				Front passenger seat belt buckle switch detection status signal	Airbag ECU assembly
				Front passenger seat occupant detection status signal	Airbag ECU assembly
Rear seat belt warning light	-	Input	CAN	Rear right door courtesy switch signal	Main body ECU (Multiplex network body ECU)
				Rear left door courtesy switch signal
				Parking brake switch signal
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
			Direct line	Rear left seat belt buckle switch signal	Rear seat inner belt assembly LH
				Rear center seat belt buckle switch signal	Rear seat inner belt assembly LH
				Rear right seat belt buckle switch signal	Rear seat inner with center belt assembly RH
	Comes on/Blinks	Output	Direct line	Rear right seat belt warning output signal	Rear seat belt warning light (Radio and display receiver assembly)
				Rear center seat belt warning output signal
				Rear left seat belt warning output signal
SRS warning light	Comes on	Input	CAN	Airbag warning light control request signal	Airbag ECU assembly
SRS warning light	Comes on	Input	CAN	Test mode signal	ECM
EPS warning light	Comes on/Blinks	Input	CAN	EPS warning light request signal	Power steering ECU (Rack and pinion power steering gear assembly)
Parking brake indicator light	Comes on/Blinks	Input	CAN	Parking brake light control signal	Skid control ECU (Brake actuator assembly)
MIL (Check engine warning light)	Comes on/Blinks	Input	CAN	MIL request signal	ECM
PCS warning light	Comes on/Blinks	Input	CAN	PCS indicator display signal	Driving support ECU assembly
Slip indicator light	Comes on/Blinks	Input	CAN	Slip indicator light signal	Skid control ECU (Brake actuator assembly)
VSC OFF indicator light	Comes on	Input	CAN	VSC OFF light signal	Skid control ECU (Brake actuator assembly)
ABS warning light	Comes on/Blinks	Input	CAN	ABS warning light control signal	Skid control ECU (Brake actuator assembly)
Brake warning light / yellow (minor malfunction)	Comes on	Input	CAN	EPB warning light control signal	Skid control ECU (Brake actuator assembly)
Tire pressure warning light	Comes on/Blinks	Input	CAN	TPMS warning indicator condition 1 signal	Main body ECU (Multiplex network body ECU)
Brake hold operated indicator light	Comes on/Blinks	Input	CAN	Brake hold indicator signal	Skid control ECU (Brake actuator assembly)
Fuel level warning light	Comes on	Input	CAN	Fuel level signal	Fuel sender gauge assembly
ICS OFF indicator light*1	Comes on/Blinks	Input	CAN	ICS OFF light request signal	Clearance warning ECU assembly
High beam indicator light	Comes on	Input	CAN	High beam headlight request signal	Main body ECU (Multiplex network body ECU)
Tail indicator light*2	Comes on	Input	CAN	Taillight request signal	Main body ECU (Multiplex network body ECU)
Head indicator light*3	Comes on	Input	CAN	Low beam headlight request signal	Main body ECU (Multiplex network body ECU)
Turn indicator light	Blinks	Input	CAN	Hazard light blinking flag signal	Skid control ECU (Brake actuator assembly)
				Hazard light activation request signal	DCM (Telematics transceiver)*4
				Flasher request signal	Main body ECU (Multiplex network body ECU)
				Airbag hazard light control request signal	Airbag ECU assembly
				Left turn light signal lever position	Steering sensor
				Right turn light signal lever position
				Left cornering light signal lever position
				Right cornering light signal lever position
			Direct line	Hazard warning switch signal	Hazard warning switch assembly (Radio and display receiver assembly)
	-	Output	CAN	Turn light state signal	Related ECUs
			CAN	Hazard switch state signal	Related ECUs
			Direct line	LH turn signal switch signal	Each turn signal light
			Direct line	RH turn signal switch signal	Each turn signal light
Brake hold standby indicator light	Comes on	Input	CAN	Brake hold standby indicator signal	Skid control ECU (Brake actuator assembly)

*1: w/ Intelligent Clearance Sonar System
*2: w/ Tail Indicator Light
*3: w/ Head Indicator Light
*4: w/ Manual (SOS) Switch

Item	Condition	Input/Output	Communication line	Signal	Component
Opening	Displayed	-	-	-	-
Ending	Displayed	Input	CAN	Driver seat courtesy switch signal	Main body ECU (Multiplex network body ECU)
Ending	Displayed	Input	CAN	Parked condition signal	Main body ECU (Multiplex network body ECU)
Odometer	Displayed	Input	CAN	Vehicle speed pulse integrated value signal	Skid control ECU (Brake actuator assembly)
	Displayed	Input	CAN	Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
	-	Output	CAN	Odometer unit signal	Related ECUs
	-	Output	CAN	Odometer signal	Related ECUs
TRIP A / TRIP B meter	Displayed	Input	CAN	Vehicle speed pulse integrated value signal	Skid control ECU (Brake actuator assembly)
			CAN	Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
			Direct line	ODO/TRIP change switch signal	ODO/TRIP switch (Trip switch)
	-	Output	CAN	TRIP A signal	Related ECUs
	-	Output	CAN	TRIP B signal	Related ECUs
Driving information tab	Displayed	-	-	-	-
Digital speedometer	Displayed	Input	CAN	Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
	-	Output	CAN	Vehicle speed signal (meter to other)	Related ECUs
				Speed tolerance A signal
				Speed tolerance B signal
Distance (After start)	Displayed	Input	CAN	Engine RPM data signal	ECM
				Vehicle speed pulse integrated value signal	Skid control ECU (Brake actuator assembly)
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
	-	Output	CAN	Drive monitor unit 2 signal	Radio and display receiver assembly
	-	Output	CAN	Drive monitor display signal (After starting driving distance)	Radio and display receiver assembly
Distance (After reset)	Displayed	Input	CAN	Engine RPM data signal	ECM
				Vehicle speed pulse integrated value signal	Skid control ECU (Brake actuator assembly)
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
Driving range	Displayed	Input	CAN	Engine RPM data signal	ECM
				Engine type information 1 signal
				Engine type information 2 signal
				Engine type information 3 signal
				Engine type information 4 signal
				Fuel consumption signal
				Vehicle speed pulse integrated value signal	Skid control ECU (Brake actuator assembly)
			Direct line	Fuel level signal	Fuel sender gauge assembly
Average fuel consumption (After reset)	Displayed	Input	CAN	Engine RPM data signal	ECM
				Fuel consumption signal	ECM
				Total average fuel consumption reset request signal	Radio and display receiver assembly
				Vehicle speed pulse integrated value signal	Skid control ECU (Brake actuator assembly)
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
			Direct line	Reset signal	Steering pad switch assembly
Average fuel consumption (After start)	Displayed	Input	CAN	Engine RPM data signal	ECM
				Fuel consumption signal	ECM
				Vehicle speed pulse integrated value signal	Skid control ECU (Brake actuator assembly)
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
Average fuel consumption (After refuel)	Displayed	Input	CAN	Engine RPM data signal	ECM
				Fuel consumption signal	ECM
				Vehicle speed pulse integrated value signal	Skid control ECU (Brake actuator assembly)
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
Current fuel consumption	Displayed	Input	CAN	Engine RPM data signal	ECM
				Fuel consumption signal	ECM
				Vehicle speed pulse integrated value signal	Skid control ECU (Brake actuator assembly)
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
	-	Output	CAN	Drive monitor unit 0 signal	Radio and display receiver assembly
	-	Output	CAN	Drive monitor display signal (Current fuel consumption)	Radio and display receiver assembly
Average speed (After reset)	Displayed	Input	CAN	Engine RPM data signal	ECM
				Vehicle speed pulse integrated value signal	Skid control ECU (Brake actuator assembly)
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
			Direct line	Reset signal	Steering pad switch assembly
Average speed (After start)	Displayed	Input	CAN	Engine RPM data signal	ECM
				Vehicle speed pulse integrated value signal	Skid control ECU (Brake actuator assembly)
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
	-	Output	CAN	Drive monitor unit 1 signal	Radio and display receiver assembly
	-	Output	CAN	Drive monitor display signal (After starting average speed)	Radio and display receiver assembly
Elapsed time (After reset)	Displayed	Input	CAN	Engine RPM data signal	ECM
Elapsed time (After reset)	Displayed	Input	Direct line	Reset signal	Steering pad switch assembly
Elapsed time (After start)	Displayed	Input	CAN	Engine RPM data signal	ECM
Elapsed time (After start)	-	Output	CAN	Drive monitor display signal (After starting driving time)	Radio and display receiver assembly
Eco driving indicator zone	Displayed	Input	CAN	Eco-zone indicator level signal	ECM
Driving assist system information tab	Displayed	Input	CAN	LDW existence flag signal	Forward recognition camera
			CAN	ACC ASL display ID2 signal	ECM
			Local bus	Navigation signal	Radio and display receiver assembly*1
Navigation system-linked (image display)*1	Displayed	Input	Local bus	Navigation system-linked signal	Radio and display receiver assembly
Dynamic radar cruise control system information (image display)	Displayed	Input	CAN	ACC ASL display ID2 signal	ECM
				Control vehicle speed unit signal
				Control vehicle speed signal
Lane departure alert system information (image display)	Displayed	Input	CAN	White line symbol left side signal	Forward recognition camera
				White line symbol right side signal
				Steering wheel symbol signal
Audio tab	Displayed	Input	Local bus	Audio signal	Radio and display receiver assembly
Audio system-linked (image display)	Displayed	Input	Local bus	Audio system-linked signal	Radio and display receiver assembly
Vehicle information tab	Displayed	Input	CAN	TPMS variation signal	Main body ECU (Multiplex network body ECU)
				PCS existence flag signal	Driving support ECU assembly
				Clearance sonar frame signal	Clearance warning ECU assembly*4
				Blind spot monitor frame signal	Blind spot monitor sensor RH
Tire inflation pressure	Displayed	Input	CAN	TPMS FL (ID1) tire pressure information signal	Main body ECU (Multiplex network body ECU)
				TPMS FR (ID2) tire pressure information signal
				TPMS RL (ID3) tire pressure information signal
				TPMS RR (ID4) tire pressure information signal
				TPMS FL (ID1) tire indicator information 0 signal
				TPMS FR (ID2) tire indicator information 0 signal
				TPMS RL (ID3) tire indicator information 0 signal
				TPMS RR (ID4) tire indicator information 0 signal
				TPMS indicate number information 0 signal
				TPMS unit information 0 signal
				TPMS display request bit 0 signal
				TPMS variation signal
Setting tab	Displayed	-	-	-	-
Warning message tab	Displayed	-	-	-	-
Automatic high beam indicator light	Displayed	Input	CAN	Smart beam indicator signal	Main body ECU (Multiplex network body ECU)
Lane departure alert indicator light	Displayed	Input	CAN	Indicator display signal	Forward recognition camera
				Fault condition text display signal
				Temporary unusable condition text display signal
				Front camera vision blocked signal
				Steering assist unusable text display signal
Cruise control indicator light (Constant speed control mode)	Displayed	Input	CAN	ACC ASL display ID2 signal	ECM
Cruise control indicator light (Vehicle-to-vehicle distance control mode)	Displayed	Input	CAN	ACC ASL display ID2 signal	ECM
SPORT MODE indicator light*2	Displayed	Input	CAN	Drive mode select signal	ECM
SPORT S MODE indicator light*3	Displayed	Input	CAN	Drive mode select signal	ECM
SPORT S+ MODE indicator light*3	Displayed	Input	CAN	Drive mode select signal	ECM
SPORT S+ MODE indicator light*3	Displayed	Input	CAN	AVS (TEMS) light signal	Absorber control ECU
ECO MODE indicator light	Displayed	Input	CAN	Drive mode select signal	ECM
Eco driving indicator light	Displayed	Input	CAN	Ecology light indicator signal	ECM
Cruise SET indicator light	Displayed	Input	CAN	ACC ASL display ID2 signal	ECM
Clearance sonar indicator light*4	Displayed	Input	CAN	Clearance sonar switch indicator signal	Clearance warning ECU assembly
RCTA indicator light	Displayed	Input	CAN	Rear crossing traffic alert switch signal	Blind spot monitor sensor RH
BSM indicator light	Displayed	Input	CAN	BSD main switch signal	Blind spot monitor sensor RH
Icy warning light	Displayed	Input	CAN	Ambient temperature display signal	Air conditioning amplifier assembly
Icy warning light	Displayed	Input	CAN	Switch signal of 0 or 0.5 below decimal point of ambient temperature display	Air conditioning amplifier assembly
CUSTOM MODE indicator light*3	Displayed	Input	CAN	Drive mode select signal	ECM
Outside temperature	Displayed	Input	CAN	Ambient temperature display signal	Air conditioning amplifier assembly
Outside temperature	Displayed	Input	CAN	Switch signal of 0 or 0.5 below decimal point of ambient temperature display	Air conditioning amplifier assembly
Phone	Displayed	Input	Local bus	Phone signal	Radio and display receiver assembly
Voice recognition	Displayed	Input	Local bus	Voice recognition signal	Radio and display receiver assembly
Audio system operation status (image display)	Displayed	Input	Local bus	Audio system information status signal	Radio and display receiver assembly
Shift position	Displayed	Input	CAN	Shift position P signal	ECM
				Shift position R signal
				Shift position N signal
				Shift position D signal
				Shift gear signal
				Mode indicator signal
				Sports mode enable signal
				Transmission oil temperature range signal
Suggestion function	Displayed	Input	CAN	Proposal service request 1 signal	Main body ECU (Multiplex network body ECU)
				Proposal service request 2 signal
				Proposal service request 3 signal
				Power window inoperative advice signal
			Direct line	Steering pad switch signal	Steering pad switch assembly
	-	Output	CAN	Proposal service response 1 signal	Main body ECU (Multiplex network body ECU)
				Proposal service response 2 signal
				Proposal service response 3 signal
Meter illumination	Illumination level	Input	CAN	Auto dimmer signal	Main body ECU (Multiplex network body ECU)
			CAN	Taillight request signal	Main body ECU (Multiplex network body ECU)
			Direct line	Illumination level signal	Light control rheostat switch (Trip switch)
	-	Output	CAN	Rheostat duty signal	Certification ECU (Smart key ECU assembly)
				Lounge illumination off signal	Main body ECU (Multiplex network body ECU)
				Tail cancel signal	Main body ECU (Multiplex network body ECU)
			Direct line	Illumination level output signal	Related ECUs
EPB Shift Interlock Function Activated	Displayed	Input	CAN	EPB multi-information display control signal	Skid control ECU (Brake actuator assembly)
EPB Shift Interlock Function Deactivated	Displayed	Input	CAN	EPB multi-information display control signal	Skid control ECU (Brake actuator assembly)
CDY-2	Displayed	Input	CAN	CDY mode signal	ECM
ADJUSTING FORWARD CAMERA	Displayed	Input	CAN	Camera adjustment mode text signal	Forward recognition camera
ADJUSTING FRONT RADAR BEAM	Displayed	Input	CAN	Inspection mode for ACC signal	Driving support ECU assembly
ERROR ADJUSTING FRONT RADAR BEAM	Displayed	Input	CAN	FRD adjustment signal	Driving support ECU assembly
ADJUSTING FRONT RADAR BEAM VERTICAL	Displayed	Input	CAN	FRD adjustment signal	Driving support ECU assembly
ADJUSTING FRONT RADAR BEAM HORIZONTAL	Displayed	Input	CAN	FRD adjustment signal	Driving support ECU assembly
CHECKING PRE-CRASH BRAKE	Displayed	Input	CAN	Inspection mode signal	Driving support ECU assembly
CHECKING CRUISE CONTROL BRAKE	Displayed	Input	CAN	Inspection mode for ACC signal	Driving support ECU assembly
WRITE ZERO-POINT OF STEERING ANGLE*4	Displayed	Input	CAN	ICS multi-information signal	Clearance warning ECU assembly
MAXIMUM RUDDER ANGLE MEMORY*4	Displayed	Input	CAN	ICS multi-information signal	Clearance warning ECU assembly
END OF ADJUSTMENT*4	Displayed	Input	CAN	ICS multi-information signal	Clearance warning ECU assembly
MEMORY ERROR*4	Displayed	Input	CAN	ICS multi-information signal	Clearance warning ECU assembly
Headlight Auto Leveling System Unavailable Visit Your Dealer	Displayed	Input	CAN	Display request lighting ECU status signal	Headlight ECU sub-assembly LH
Brake!	Displayed	Input	CAN	PCS warning message signal	Driving support ECU assembly
Brake!	Displayed	Input	CAN	ICS multi-information signal	Clearance warning ECU assembly*4
Push and Hold Engine Switch for Emergency Stop	Displayed	Input	CAN	Smart system warning 2 signal	Certification ECU (Smart key ECU assembly)
Shift to N and Push ENGINE Switch to Restart	Displayed	Input	CAN	Smart system warning 2 signal	Certification ECU (Smart key ECU assembly)
Engine Stopped Shift into P	Displayed	Input	CAN	Engine stall message signal	ECM
Engine Stopped Stop in a Safe Place	Displayed	Input	CAN	Smart system warning 2 signal	Certification ECU (Smart key ECU assembly)
Low Braking Power Stop in a Safe Place See Owner's Manual	Displayed	Input	CAN	Brake warning light control flag signal	Skid control ECU (Brake actuator assembly)
			Direct line	Brake fluid level warning switch signal	Brake fluid level warning switch (Brake master cylinder reservoir assembly)
			Direct line	Vacuum warning switch signal	Vacuum warning switch assembly
Switch to Brake*4	Displayed	Input	CAN	ICS multi-information signal	Clearance warning ECU assembly
Brake*4	Displayed	Input	CAN	ICS multi-information signal	Clearance warning ECU assembly
Object Detected Acceleration Reduced*4	Displayed	Input	CAN	ICS multi-information signal	Clearance warning ECU assembly
Vehicle May Roll Shift to P	Displayed	Input	CAN	EPB multi-information display control signal	Skid control ECU (Brake actuator assembly)
EPB Automatically Applied	Displayed	Input	CAN	EPB multi-information display control signal	Skid control ECU (Brake actuator assembly)
Shift to P Before Exiting Vehicle	Displayed	Input	CAN	Smart system warning 2 signal	Certification ECU (Smart key ECU assembly)
Parking Brake Unavailable	Displayed	Input	CAN	EPB multi-information display control signal	Skid control ECU (Brake actuator assembly)
Parking Brake Temporarily Unavailable	Displayed	Input	CAN	EPB multi-information display control signal	Skid control ECU (Brake actuator assembly)
Each door open (image display)	Displayed	Input	CAN	Driver door courtesy switch signal	Main body ECU (Multiplex network body ECU)
				Front passenger door courtesy switch signal
				Rear right door courtesy switch signal
				Rear left door courtesy switch signal
				Luggage courtesy switch signal
				Hood courtesy switch signal
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
Clearance sonar detection (image display)*4	Displayed	Input	CAN	Combination meter display request signal	Clearance warning ECU assembly
				Clearance sonar vehicle mark display request signal
				Front center area information signal
				Front left area information signal
				Front right area information signal
				Rear center area information signal
				Rear left area information signal
				Rear right area information signal
				Clearance sonar information signal
Parking Assist Malfunction Visit Your Dealer*4	Displayed	Input	CAN	Combination meter display request signal	Clearance warning ECU assembly
Parking Assist Unavailable Clean Parking Assist Sensor*4	Displayed	Input	CAN	Combination meter display request signal	Clearance warning ECU assembly
Parking Assist Unavailable*4	Displayed	Input	CAN	Combination meter display request signal	Clearance warning ECU assembly
Rear Cross Traffic Alert Malfunction Visit Your Dealer	Displayed	Input	CAN	RCTA system status signal	Blind spot monitor sensor RH
Rear Cross Traffic Alert Unavailable	Displayed	Input	CAN	RCTA system status signal	Blind spot monitor sensor RH
Parking Brake Unavailable Vehicle May Roll Park on Flat Road	Displayed	Input	CAN	EPB multi-information display control signal	Skid control ECU (Brake actuator assembly)
Auto Power Off to Conserve Battery	Displayed	Input	CAN	Smart system warning 2 signal	Certification ECU (Smart key ECU assembly)
Parking Brake Unable to Disengage Press Brake and Push Parking Brake Switch to Release	Displayed	Input	CAN	EPB multi-information display control signal	Skid control ECU (Brake actuator assembly)
Parking Brake Unable to Disengage Close Door and Fasten Seat Belt	Displayed	Input	CAN	EPB multi-information display control signal	Skid control ECU (Brake actuator assembly)
Parking Brake ON	Displayed	Input	CAN	EPB multi-information display control signal	Skid control ECU (Brake actuator assembly)
Power Steering Malfunction Steering Power Low Visit Your Dealer	Displayed	Input	CAN	Multi-information display request signal	Power steering ECU (Rack and pinion power steering gear assembly)
Steering Power Low Visit Your Dealer	Displayed	Input	CAN	Multi-information display request signal	Power steering ECU (Rack and pinion power steering gear assembly)
Power Steering Malfunction Visit Your Dealer	Displayed	Input	CAN	Multi-information display request signal	Power steering ECU (Rack and pinion power steering gear assembly)
Brakehold Malfunction Press Brake to Deactivate Visit Your Dealer	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Brakehold Warning Press Brake on Slope	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Wiper System Malfunction Visit Your Dealer	Displayed	Input	CAN	Wiper fault signal	Main body ECU (Multiplex network body ECU)
Key Not Detected Check Key Location	Displayed	Input	CAN	Smart system warning 1 signal	Certification ECU (Smart key ECU assembly)
Release Accelerator	Displayed	Input	CAN	Drive-start control multi-information request signal	ECM
LDA Hold Steering Wheel	Displayed	Input	CAN	Request for driver action display signal	Forward recognition camera
LDA Hold Steering Wheel	Displayed	Input	CAN	Hands-free caution text display signal	Forward recognition camera
LDA Steering Assist Unavailable Hold Steering Wheel	Displayed	Input	CAN	Hands-free caution text display signal	Forward recognition camera
Check Engine Visit Your Dealer	Displayed	Input	CAN	Engine malfunction message signal	ECM
Check Engine Reduced Engine Power Visit Your Dealer	Displayed	Input	CAN	Engine malfunction message signal	ECM
Reduced Engine Power Visit Your Dealer	Displayed	Input	CAN	Engine malfunction message signal	ECM
Engine Maintenance Required Visit Your Dealer	Displayed	Input	CAN	Engine malfunction message signal	ECM
SRS Airbag System Malfunction Visit Your Dealer	Displayed	Input	CAN	Airbag warning light control request signal	Airbag ECU assembly
Antilock Brake System Malfunction Visit Your Dealer	Displayed	Input	CAN	ABS warning light control flag signal	Skid control ECU (Brake actuator assembly)
Engine Coolant Temp High Stop in a Safe Place See Owner's Manual	Displayed	Input	CAN	Engine coolant temperature signal	ECM
Charging System Malfunction Stop in a Safe Place See Owner's Manual	Displayed	Input	CAN	Charge indicator light signal	ECM
Radar Cruise Control Unavailable Clean Sensor	Displayed	Input	CAN	ACC ASL display ID2 signal	ECM
Radar Cruise Control Unavailable	Displayed	Input	CAN	ACC ASL display ID2 signal	ECM
Radar Cruise Control Unavailable Press Brake to Resume Driving	Displayed	Input	CAN	ACC ASL display ID2 signal	ECM
Smart Key System Malfunction See Owner's Manual	Displayed	Input	CAN	Smart system warning 1 signal	Certification ECU (Smart key ECU assembly)
Blind Spot Monitor Unavailable	Displayed	Input	CAN	BSD module status signal	Blind spot monitor sensor RH
Cruise Control Malfunction Visit Your Dealer	Displayed	Input	CAN	ACC ASL display ID2 signal	ECM
Cruise Control Fault Press Brake to Deactivate Visit Your Dealer	Displayed	Input	CAN	ACC ASL display ID2 signal	ECM
LDA Malfunction Visit Your Dealer	Displayed	Input	CAN	Fault condition text display signal	Forward recognition camera
Front Camera Unavailable	Displayed	Input	CAN	PCS temperature message (Camera) signal	Driving support ECU assembly
LDA Unavailable	Displayed	Input	CAN	Steering assist unusable text display signal	Forward recognition camera
LDA Turned ON Steering Assist Active	Displayed	Input	CAN	LKA mode text display signal	Forward recognition camera
LDA Turned ON Steering Assist Unavailable	Displayed	Input	CAN	LKA mode text display signal	Forward recognition camera
Front Camera Unavailable Remove Debris On Windshield	Displayed	Input	CAN	PCS dust message (Camera) signal	Driving support ECU assembly
Pre-Collision System Malfunction Visit Your Dealer	Displayed	Input	CAN	PCS fault condition text display signal	Driving support ECU assembly
Blind Spot Monitor Malfunction Visit Your Dealer	Displayed	Input	CAN	BSD module status signal	Blind spot monitor sensor RH
Secondary Collision Brake system Malfunction Visit Your Dealer	Displayed	Input	CAN	MCB warning signal	Skid control ECU (Brake actuator assembly)
Oil Pressure Low Stop in a Safe Place See Owner's Manual	Displayed	Input	CAN	Engine RPM data signal	ECM
Oil Pressure Low Stop in a Safe Place See Owner's Manual	Displayed	Input	Direct line	Engine oil pressure signal	Engine oil pressure switch assembly
Parking Brake Malfunction Visit Your Dealer	Displayed	Input	CAN	EPB multi-information display control signal	Skid control ECU (Brake actuator assembly)
Radar Cruise Active Please Pay Attention to Other Vehicles	Displayed	Input	CAN	ACC ASL display ID2 signal	ECM
LDA Unavailable Below Approx. 50km/h	Displayed	Input	CAN	Speed condition failure text display signal	Forward recognition camera
LDA Unavailable Below Approx. 32MPH	Displayed	Input	CAN	Speed condition failure text display signal	Forward recognition camera
LDA Unavailable at Current Speed	Displayed	Input	CAN	Speed condition failure text display signal	Forward recognition camera
Engine Stopped Steering Power Low	Displayed	Input	CAN	Multi-information request signal	Power steering ECU (Rack and pinion power steering gear assembly)
Turn Power Off	Displayed	Input	CAN	Smart system warning 2 signal	Certification ECU (Smart key ECU assembly)
Would You Like to Take a Break?	Displayed	Input	CAN	SWS rest advisory display signal	Forward recognition camera
Please Take a Break	Displayed	Input	CAN	SWS rest advisory display signal	Forward recognition camera
Key Detected in Vehicle	Displayed	Input	CAN	Smart system warning 3 signal	Certification ECU (Smart key ECU assembly)
Turn Lights Off	Displayed	Input	CAN	Light reminder buzzer request signal	Main body ECU (Multiplex network body ECU)
Moon Roof Open*5	Displayed	Input	CAN	Slide roof open warning request signal	Main body ECU (Multiplex network body ECU)
Window Open	Displayed	Input	CAN	Power window open warning request signal	Main body ECU (Multiplex network body ECU)
Window / Moon Roof Open*5	Displayed	Input	CAN	Slide roof open warning request signal	Main body ECU (Multiplex network body ECU)
Window / Moon Roof Open*5	Displayed	Input	CAN	Power window open warning request signal	Main body ECU (Multiplex network body ECU)
Press Brake Pedal and Touch Engine Switch with Key	Displayed	Input	CAN	Smart system warning 1 signal	Certification ECU (Smart key ECU assembly)
Not Ready to Drive Press Brake Pedal and Push Engine Switch to Start	Displayed	Input	CAN	Smart system warning 3 signal	Certification ECU (Smart key ECU assembly)
Press Brake Pedal and Push Engine Switch to Start	Displayed	Input	CAN	Smart system warning 1 signal	Certification ECU (Smart key ECU assembly)
Press Brake Pedal and Push Engine Switch to Start	Displayed	Input	CAN	Smart system warning 3 signal	Certification ECU (Smart key ECU assembly)
Push Engine Switch while Turning the Steering Wheel in Either Direction	Displayed	Input	CAN	Smart system warning 1 signal	Certification ECU (Smart key ECU assembly)
Brakehold Malfunction Visit Your Dealer	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Brakehold Less Effective During Icy Conditions	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Brakehold Active Press Brake and Switch to Deactivate	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Brakehold Unavailable Driver Door Open	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Brakehold Unavailable Driver Seat Belt Unbuckled	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Brakehold Unavailable Hood or Trunk Open	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Press Brake to Maintain Brakehold	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Close Driver Door to Maintain Brakehold	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Fasten Driver Seat Belt to Maintain Brakehold	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Brakehold Unavailable	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Brakehold Deactivated	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Brakehold Deactivated Parking Brake Automatically Applied	Displayed	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
ICS Malfunction Visit Your Dealer*4	Displayed	Input	CAN	ICS multi-information signal	Clearance warning ECU assembly
Drive-Start Control Malfunction Visit Your Dealer	Displayed	Input	CAN	Drive-start control multi-information request signal	ECM
Brake Override Malfunction Visit Your Dealer	Displayed	Input	CAN	Brake override system multi-information request signal	ECM
Key Battery Low Replace Key Battery	Displayed	Input	CAN	Smart system warning 1 signal	Certification ECU (Smart key ECU assembly)
Engine Oil Level Low Add or Replace	Displayed	Input	CAN	Engine RPM data signal	ECM
			CAN	Engine coolant temperature signal	ECM
			Direct line	Engine oil level signal	Engine oil level sensor
Headlight System Malfunction Visit Your Dealer	Displayed	Input	CAN	Smart beam indicator signal	Main body ECU (Multiplex network body ECU)
Headlight System Malfunction Visit Your Dealer	Displayed	Input	CAN	LED headlight indicator signal	Main body ECU (Multiplex network body ECU)
Accelerator and Brake Pedals Pressed Simultaneously	Displayed	Input	CAN	Brake override system multi-information request signal	ECM
Setting Tire Pressure Warning System	Displayed	Input	CAN	TPMS warning indicator condition 1 signal	Main body ECU (Multiplex network body ECU)
Tire Pressure Recalibrating Please Wait until Complete	Displayed	Input	CAN	TPMS warning indicator condition 1 signal	Main body ECU (Multiplex network body ECU)
Tire Pressure Low Check Tire	Displayed	Input	CAN	TPMS warning indicator condition 1 signal	Main body ECU (Multiplex network body ECU)
Windshield Washer Fluid Low	Displayed	Input	Direct line	Washer fluid level signal	Level warning switch assembly
Fuel Low	Displayed	Input	Direct line	Fuel level signal	Fuel sender gauge assembly
Roads May Be Icy Drive with Care	Displayed	Input	CAN	Engine RPM data signal	ECM
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
				Ambient temperature display signal	Air conditioning amplifier assembly
				Switch signal of 0 or 0.5 below decimal point of ambient temperature display	Air conditioning amplifier assembly
Traction Control Turned Off	Displayed	Input	CAN	Traction control off light signal	Skid control ECU (Brake actuator assembly)
Maintenance Required Soon	Displayed	-	-	-	-
Maintenance Required Soon	-	Output	CAN	Previous oil maintenance flag signal	Radio and display receiver assembly
Maintenance Required Visit Your Dealer	Displayed	-	-	-	-
Maintenance Required Visit Your Dealer	-	Output	CAN	Previous oil maintenance flag signal	Radio and display receiver assembly
Auto High Beam Ready Turn ON High Beam to Activate	Displayed	Input	CAN	Smart beam advice signal	Main body ECU (Multiplex network body ECU)
A New Key has been Registered Contact Your Dealer for Details	Displayed	Input	CAN	Smart system warning 2 signal	Certification ECU (Smart key ECU assembly)
VSC Turned Off Pre-Collision Brake System Unavailable	Displayed	Input	CAN	PB temporary unusable condition text display signal	Driving support ECU assembly
VSC Turned Off Pre-Collision Brake System Unavailable	Displayed	Input	CAN	VSC OFF light signal	Skid control ECU (Brake actuator assembly)
Pre-Collision System Unavailable	Displayed	Input	CAN	PCS temporary unusable condition text display signal	Driving support ECU assembly
Pre-Collision System Unavailable	Displayed	Input	CAN	PCS temperature message (Radar) signal	Driving support ECU assembly
ICS Unavailable*4	Displayed	Input	CAN	ICS multi-information signal	Clearance warning ECU assembly
Pre-Collision System Unavailable Clean Sensor	Displayed	Input	CAN	PCS dust message (Radar) signal	Driving support ECU assembly
Pre-Collision System Off	Displayed	Input	CAN	PCS warning message signal	Driving support ECU assembly
				PCS warning distance unusable condition text display signal
				PCS distance warning signal
				PCS pedestrian warning signal
				PCS preceding vehicle start notification signal
ACCESSORY	Displayed	Input	CAN	Display request of vehicle mode signal	Certification ECU (Smart key ECU assembly)
IGNITION ON	Displayed	Input	CAN	Display request of vehicle mode signal	Certification ECU (Smart key ECU assembly)

*1: w/ Navigation System
*2: w/o Adaptive Variable Suspension System
*3: w/ Adaptive Variable Suspension System
*4: w/ Intelligent Clearance Sonar System
*5: w/ Sliding Roof System

(d) Buzzer

Item	Condition	Input/Output	Communication line	Signal	Component
PCS warning buzzer	Sounds intermittently	Input	CAN	PCS meter buzzer request (extend) signal	Driving support ECU assembly
Seat belt warning (for Driver side) buzzer	Sounds intermittently (Maximum 5 times)	Input	CAN	Driver seat belt switch signal	Main body ECU (Multiplex network body ECU)
	Sounds once/Sounds intermittently	Input	CAN	Driver seat belt switch signal	Main body ECU (Multiplex network body ECU)
				Parking brake switch signal	Main body ECU (Multiplex network body ECU)
				Shift position P signal	ECM
				Shift position R signal	ECM
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
Warning buzzer for P range position advice buzzer	Sounds continuously	Input	CAN	Buzzer request signal	Certification ECU (Smart key ECU assembly)
Push operation warning during driving buzzer	Sounds intermittently	Input	CAN	Buzzer request signal	Certification ECU (Smart key ECU assembly)
Seat belt warning (for Front passenger side) buzzer	Sounds once/Sounds intermittently	Input	CAN	Parking brake switch signal	Main body ECU (Multiplex network body ECU)
				Shift position P signal	ECM
				Shift position R signal	ECM
				Front passenger seat occupant detection status signal	Airbag ECU assembly
				Front passenger seat belt buckle switch detection status signal	Airbag ECU assembly
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
Seat belt warning (for Rear seat) buzzer	Sounds intermittently	Input	CAN	Parking brake switch signal	Main body ECU (Multiplex network body ECU)
				Rear right door courtesy switch signal
				Rear left door courtesy switch signal
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
				Shift selection P signal	ECM
				Shift selection R signal	ECM
			Direct line	Rear left seat belt buckle switch signal	Rear seat inner belt assembly LH
				Rear center seat belt buckle switch signal	Rear seat inner belt assembly LH
				Rear right seat belt buckle switch signal	Rear seat inner with center belt assembly RH
	Sounds once	Input	CAN	Parking brake switch signal	Main body ECU (Multiplex network body ECU)
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
				Shift selection P signal	ECM
				Shift selection R signal	ECM
			Direct line	Rear left seat belt buckle switch signal	Rear seat inner belt assembly LH
				Rear center seat belt buckle switch signal	Rear seat inner belt assembly LH
				Rear right seat belt buckle switch signal	Rear seat inner with center belt assembly RH
Proximity warning buzzer of radar cruise control buzzer	Sounds intermittently	Input	CAN	ACC buzzer request signal	ECM
Pedestrian warning/vehicle distance time alert reminder buzzer	Sounds intermittently	Input	CAN	PCS meter buzzer request (extend) signal	Driving support ECU assembly
Lane departure alert cancel buzzer	Sounds twice	Input	CAN	Lane departure alert cancel buzzer signal	Forward recognition camera
Vehicle roll warning buzzer (Engine stall)	Sounds continuously/Sounds intermittently	Input	CAN	Engine stall buzzer signal	ECM
Brake fluid low warning buzzer	Sounds intermittently	Input	CAN	Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
			Direct line	Brake fluid level warning switch signal	Brake fluid level warning switch (Brake master cylinder reservoir assembly)
			Direct line	Vehicle speed pulse input signal	Skid control ECU (Brake actuator assembly)
Engine oil pressure warning buzzer	Sounds intermittently	Input	CAN	Engine RPM data signal	ECM
Engine oil pressure warning buzzer	Sounds intermittently	Input	Direct line	Engine oil pressure signal	Engine oil pressure switch assembly
EPS warning buzzer	Sounds once/Sounds intermittently	Input	CAN	Demand buzzer to meter signal	Power steering ECU (Rack and pinion power steering gear assembly)
Lane departure alert warning buzzer	Sounds intermittently	Input	CAN	LDW buzzer signal	Forward recognition camera
Engine coolant temperature hot warning buzzer	Sounds once	Input	CAN	Engine coolant temperature signal	ECM
P range shift reminder and door open warning buzzer	Sounds continuously	Input	CAN	Meter buzzer continuation request signal	Certification ECU (Smart key ECU assembly)
Smart key warning buzzer	Sounds intermittently	Input	CAN	Meter buzzer intermittence request signal	Certification ECU (Smart key ECU assembly)
	Sounds intermittently (Maximum 9 times)	Input	CAN	Meter buzzer intermittent request (0.7 sec. cycle) signal
	Sounds once	Input	CAN	Meter buzzer single-shot request signal
Brake operation request buzzer for cruise control	Sounds intermittently	Input	CAN	ACC buzzer request signal	ECM
Multi-information display warning buzzer	Sounds once	-	-	-	-
Electric parking brake cancel buzzer	Sounds once	Input	CAN	EPB multi-information display control signal	Skid control ECU (Brake actuator assembly)
Brake hold control non-cancellation warning buzzer	Sounds twice	Input	CAN	Brake hold information control flag signal	Skid control ECU (Brake actuator assembly)
Radar cruise low speed cancel buzzer	Sounds twice	Input	CAN	ACC buzzer request signal	ECM
Preceding vehicle lost at low speed buzzer	Sounds four times	Input	CAN	ACC buzzer request signal	ECM
Lane departure alert hands-free caution buzzer	Sounds intermittently	Input	CAN	Hands-free caution text display signal	Forward recognition camera
Immobiliser key identification completion buzzer	Sounds once	Input	CAN	Immobiliser key identification completion signal	Certification ECU (Smart key ECU assembly)
Driving with parking brake unreleased warning buzzer	Sounds intermittently	Input	CAN	EPB multi-information display control signal	Skid control ECU (Brake actuator assembly)
Driving with door open warning buzzer	Sounds intermittently	Input	CAN	Driver door courtesy switch signal	Main body ECU (Multiplex network body ECU)
				Front passenger door courtesy switch signal
				Rear right door courtesy switch signal
				Rear left door courtesy switch signal
				Luggage courtesy switch signal
				Hood courtesy switch signal
				Vehicle speed (SP1) signal	Skid control ECU (Brake actuator assembly)
Unsteady driving alert buzzer	Sounds twice	Input	CAN	SWS buzzer request signal	Forward recognition camera
Sports shift reject buzzer	Sounds twice	Input	CAN	Reject buzzer signal	ECM
Light reminder buzzer	Sounds continuously	Input	CAN	Light reminder buzzer request signal	Main body ECU (Multiplex network body ECU)
Pre-collision brake assist notification buzzer	Sounds intermittently	Input	CAN	PCS meter buzzer request (extend) signal	Driving support ECU assembly
PCS notification buzzer	Sounds intermittently	Input	CAN	PCS meter buzzer request (extend) signal	Driving support ECU assembly
Brake inspections standby mode notification buzzer	Sounds intermittently	Input	CAN	PCS meter buzzer request (extend) signal	Driving support ECU assembly
Radar axis adjustment is complete buzzer	Sounds intermittently	Input	CAN	PCS meter buzzer request (extend) signal	Driving support ECU assembly
Camera axis adjustment complete buzzer	Sounds intermittently	Input	CAN	PCS meter buzzer request (extend) signal	Driving support ECU assembly
Pre-collision brake notification buzzer	Sounds continuously	Input	CAN	PCS meter buzzer request (extend) signal	Driving support ECU assembly
Brake inspection normal return notification buzzer	Sounds continuously	Input	CAN	PCS meter buzzer request (extend) signal	Driving support ECU assembly
Radar axis adjustment incomplete notification buzzer	Sounds continuously	Input	CAN	PCS meter buzzer request (extend) signal	Driving support ECU assembly
Camera adjustment start notification buzzer	Sounds continuously	Input	CAN	PCS meter buzzer request (extend) signal	Driving support ECU assembly
Turn signal flasher buzzer	Sounds intermittently	Input	CAN	Hazard light blinking flag signal	Skid control ECU (Brake actuator assembly)
				Hazard light activation request signal	DCM (Telematics transceiver)*
				Flasher request signal	Main body ECU (Multiplex network body ECU)
				Airbag hazard light control request signal	Airbag ECU assembly
				Left turn light signal lever position	Steering sensor
				Right turn light signal lever position
				Left cornering light signal lever position
				Right cornering light signal lever position
			Direct line	Hazard warning switch signal	Hazard warning switch assembly (Radio and display receiver assembly)

*: w/ Manual (SOS) Switch

(e) Others

Item	Condition	Input/Output	Communication line	Signal	Component
Speed signal for Direct line	-	Input	Direct line	Vehicle speed pulse input signal	Skid control ECU (Brake actuator assembly)
Speed signal for Direct line	-	Output	Direct line	Vehicle speed pulse output signal	Related ECUs
Warning/Diagnosis notification*1	-	Output	CAN	Vehicle warning signal (Anti-Lock brake system warning)	DCM (Telematics transceiver)
				Vehicle warning signal (Electronically controlled brake system)
				Vehicle warning signal (Brake control system warning)
				Vehicle warning signal (Brake fluid level warning)
				Vehicle warning signal (Electric parking brake system warning)
				Vehicle warning signal (Charging system warning)
				Vehicle warning signal (Check engine warning)
				Vehicle warning signal (Engine oil pressure warning)
				Vehicle warning signal (Engine oil level warning)
				Vehicle warning signal (Schedule maintenance warning)
				Vehicle warning signal (Engine coolant temperature hot warning)
				Vehicle warning signal (Airbag system warning)
				Vehicle warning signal (Power steering system warning)
				Vehicle warning signal (Tire pressure warning system warning)
				Vehicle warning signal (Tire pressure low warning)
Warning/Diagnosis notification*1	-	Output	CAN	Vehicle warning signal (Dynamic radar cruise control system warning)	DCM (Telematics transceiver)
				Vehicle warning signal (Pre-collision system warning)
				Vehicle warning signal (Lane departure alert system warning)
				Vehicle warning signal (Blind spot monitor system warning)
				Vehicle warning signal (Intuitive parking assist system warning)*2
				Vehicle warning signal (Smart key system warning)
				Vehicle warning signal (Automatic high beam system warning)
				Vehicle warning signal (Washer fluid level warning)
				Vehicle warning signal (Brake override system warning)
				Vehicle warning signal (Drive start control warning)
				Vehicle warning signal (Headlight system warning)
				Vehicle warning signal (Wiper and washer system warning)
				Vehicle warning signal (Intelligent clearance sonar system warning)*2
				Vehicle warning signal (Secondary collision brake system warning)
				Vehicle warning signal (Rear crossing traffic alert system warning)

*1: w/ Manual (SOS) Switch
*2: w/ Intelligent Clearance Sonar System

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