Toyota Avalon Service & Repair Manual: Data List / Active Test

DATA LIST / ACTIVE TEST

READ DATA LIST

HINT:

Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time.

NOTICE:

In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not.

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG).

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Data List.

(f) Read the Data List according to the display on the Techstream.

Chassis > ABS/VSC/TRAC/EPB > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

ABS Warning Light

ABS warning light

OFF or ON

OFF: Warning light off

ON: Warning light on

-

Brake Warning Light

Brake warning light

OFF or ON

OFF: Warning light off

ON: Warning light on

-

Stop Light SW

Stop light switch

OFF or ON

OFF: Brake pedal released

ON: Brake pedal depressed

-

Parking Brake SW

Parking brake switch

OFF or ON

OFF: Parking brake released

ON: Parking brake applied

-

Gear Position

Gear position information

"P,N", R, 1st-8th, Fail or Not R

Actual gear position

-

Shift Lever Position

Shift lever position information

"P,N", R, D/M, 1st-6th/B or Fail

Actual shift lever position

-

Shift Information

Shift information

OFF or ON

OFF: Not during gear change

ON: During gear change

-

Deceleration Sensor

Acceleration sensor reading

Min.: -18.525 m/s2, Max.: 18.387 m/s2

-

During deceleration/acceleration: Changes continuously

Zero Point of Decele

Memorized zero value

Min.: -25.10 m/s2, Max.: 24.90 m/s2

-

-

Deceleration Sensor2

Acceleration sensor 2 reading

Min.: -18.525 m/s2, Max.: 18.387 m/s2

-

During deceleration/acceleration: Changes continuously

Zero Point of Decele2

Memorized zero value

Min.: -25.10 m/s2, Max.: 24.90 m/s2

-

-

Stop Light Relay

Stop light control relay (Stop light switch assembly)

OFF or ON

OFF: Relay off

ON: Relay on

-

FR Wheel Speed

Front wheel speed sensor RH reading

Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

FL Wheel Speed

Front wheel speed sensor LH reading

Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

RR Wheel Speed

Rear wheel speed sensor RH reading

Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

RL Wheel Speed

Rear wheel speed sensor LH reading

Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Vehicle stopped: 0 km/h (0 mph)

When driving at constant speed: No large fluctuations

Vehicle Speed

Maximum wheel speed sensor reading

Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

Min.: 0 km/h (0 mph), Max.: 326 km/h (202 mph)

When driving at constant speed: No large fluctuations

Stop Light Relay Output

Stop light control relay (Stop light switch assembly) output

OFF or ON

OFF: Relay output off (Stop light off)

ON: Relay output on (Stop light on)

-

EFI Communication Open

ECM communication open detection

Normal or Error

Normal: Normal

Error: Momentary interruption

-

Deceleration Open

Acceleration sensor open detection

Normal or Error

Normal: Normal

Error: Momentary interruption

-

BS1 Voltage Value

+BS voltage value

Min.: 0.00 V, Max.: 20.00 V

-

Changes in proportion to battery voltage

Number of DTC

Number of DTC recorded

Min.: 0, Max.: 255

-

-

IG Voltage Value Decreased

+BS voltage value decrease detection

Normal or Error

Normal: Normal

Error: Voltage low

-

IG Voltage Value Increased

+BS voltage value increase detection

Normal or Error

Normal: Normal

Error: Voltage high

-

Vehicle Speed (Control Value)

Vehicle speed

(control value)

Min.: 0.0 km/h (0.0 MPH)

Max.: 326.4 km/h (202.8 MPH)

-

-

ECU +B1 Voltage

Skid control ECU

(brake actuator assembly) +B1 voltage

0.00 to 20.00 V

11 to 14 V

-

RH Actuator Motor Input Voltage

Parking brake motor RH (parking brake actuator assembly RH) input voltage

0.00 to 20.00 V

-

-

RH Actuator Motor +Terminal Voltage

Parking brake motor RH (parking brake actuator assembly RH) positive (+) terminal side voltage

0.00 to 20.00 V

-

-

RH Actuator Motor -Terminal Voltage

Parking brake motor RH (parking brake actuator assembly RH) negative (-) terminal side voltage

0.00 to 20.00 V

-

-

LH Actuator Motor Input Voltage

Parking brake motor LH (parking brake actuator assembly LH) input voltage

0.00 to 20.00 V

-

-

LH Actuator Motor +Terminal Voltage

Parking brake motor LH (parking brake actuator assembly LH) positive (+) terminal side voltage

0.00 to 20.00 V

-

-

LH Actuator Motor -Terminal Voltage

Parking brake motor LH (parking brake actuator assembly LH) negative (-) terminal side voltage

0.00 to 20.00 V

-

-

Indoor Temperature

Interior temperature

-6.50 to 57.25°C (20.30 to 135.00°F)

-

When displayed value differs from actual interior temperature, air conditioning system and CAN communication system may be malfunctioning

Ambient Temperature

Ambient temperature

-40 to 50°C (-40 to 122°F)

-

When displayed value differs from actual ambient temperature, air conditioning system and CAN communication system may be malfunctioning

EPB Switch

Electric parking brake switch (electric parking brake switch assembly) input

OFF, Lock, Release or Unknown

OFF: Lock switch and release switch are off

Lock: Lock switch on Release: Release switch on

When not normal, electric parking brake switch (electric parking brake switch assembly) release side system may be malfunctioning

HINT:

EPB stands for electric parking brake.

Auto Mode Request

Auto mode request status

OFF or ON

-

-

Shift Position

Position of shift lever

P, N, R, D or Unknown

P: Shift lever in P

N: Shift lever in N

R: Shift lever in R

D: Shift lever in D or S

-

IG Switch

IG power source status

OFF or ON

OFF: IG power source voltage is not input to skid control ECU (brake actuator assembly)

ON: IG power source voltage is input to skid control ECU (brake actuator assembly)

-

Brake Hold Ready

Brake hold control permission status

OFF or ON

-

-

Brake Hold Control Mode

Brake hold control mode

OFF, ON, Release or EPB

OFF: Brake hold control is not operating

ON: Brake hold control is operating

Release: Brake hold control is released

EPB: Parking brake is locked during brake hold control

HINT:

EPB stands for electric parking brake.

RH Actuator Current Status

Parking brake actuator assembly RH monitoring current condition

Valid or Inval

Valid

-

LH Actuator Current Status

Parking brake actuator assembly LH monitoring current condition

Valid or Inval

Valid

-

RH Actuator Nut Stroke

Parking brake actuator assembly RH nut stroke value

0.000 to 8.160 mm (0.000 to 0.321 in.)

-

-

LH Actuator Nut Stroke

Parking brake actuator assembly LH nut stroke value

0.000 to 8.160 mm (0.000 to 0.321 in.)

-

-

RH Actuator Motor Actual Current

Parking brake motor RH (parking brake actuator assembly RH) current value

-5.0362 to 50.5000 A

-

-

RH Actuator 0 load Current

Parking brake actuator assembly RH current value with no load

-5.0362 to 50.5000 A

-

-

LH Actuator Motor Actual Current

Parking brake motor LH (parking brake actuator assembly LH) current value

-5.0362 to 50.5000 A

-

-

LH Actuator 0 load Current

Parking brake actuator assembly LH current value with no load

-5.0362 to 50.5000 A

-

-

Counter of IG ON After EPB Control Cancel

Number of times the engine switch was turned on (IG) after EPB control was canceled

0 to 255 Times

-

-

RH Actuator Status

Parking brake actuator assembly RH condition

Default, Lock, Lock Dynamic, Release, Lock Faulty, Unexpected, Lock Standby, Release Standby, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock Standard Control, Lock Dynamic Control, Lock Control for Prevention Loosen by High Temperature, Lock Control for Prevention Slipping Down, Re-Lock Control by Switch, Recovery Lock Control, Lock Control After Dynamic PKB, Release Standard Control, Release Dynamic Control or Full Release Control

-

-

LH Actuator Status

Parking brake actuator assembly LH condition

Default, Lock, Lock Dynamic, Release, Lock Faulty, Unexpected, Lock Standby, Release Standby, Lock Dynamic Standby, Release Dynamic Standby, Lock Dynamic Faulty, Lock Standard Control, Lock Dynamic Control, Lock Control for Prevention Loosen by High Temperature, Lock Control for Prevention Slipping Down, Re-Lock Control by Switch, Recovery Lock Control, Lock Control After Dynamic PKB, Release Standard Control, Release Dynamic Control or Full Release Control

-

-

Auto Mode

AUTO (shift-linked) mode permission status

OFF or ON

OFF: Manual mode.

ON: AUTO (shift-linked) mode

-

Dynamic PKB Mode

Dynamic parking brake operation status

OFF or ON

OFF: Dynamic parking brake is not operating

ON: Dynamic parking brake is operating

-

Permission of Interlocking Shift

AUTO (shift-linked) mode permission status

OK or NG

-

-

Permission of Interlocking Brake

Brake-linked permission status

OK or NG

-

-

Permission of RH Interlocking PKB Lock

Parking brake actuator assembly RH parking brake lock control permission status

OK or NG

OK

-

Permission of RH Interlocking PKB Release

Parking brake actuator assembly RH parking brake release control permission status

OK or NG

-

-

Permission of RH Interlocking Dynamic PKB

Parking brake actuator assembly RH dynamic parking control permission status

OK or NG

-

-

Permission of RH Interlocking PKB Full Release

Parking brake actuator assembly RH parking brake full release permission status

OK or NG

-

-

Permission of LH Interlocking PKB Lock

Parking brake actuator assembly LH parking brake lock control permission status

OK or NG

OK

-

Permission of LH Interlocking PKB Release

Parking brake actuator assembly LH parking brake release control permission status

OK or NG

-

-

Permission of LH Interlocking Dynamic PKB

Parking brake actuator assembly LH dynamic parking control permission status

OK or NG

-

-

Permission of LH Interlocking PKB Full Release

Parking brake actuator assembly LH parking brake full release permission status

OK or NG

-

-

Fade Status

Fade status

OFF or ON

-

-

EPB Control Cancel History

Cause of EPB control cancel

No Recoded, RH IC Overheat, LH IC Overheat, RH Actuator Motor Current High, LH Actuator Motor Current High, RH Actuator Motor +B Open Judging, LH Actuator Motor +B Open Judging or IG Voltage High/Low

-

HINT:

EPB stands for electric parking brake.

Parking Brake Light

Parking brake indicator light (red) output signal

OFF, Light or Blink

OFF: Parking brake indicator light (red) turns off

Light: Parking brake indicator light (red) illuminates

Blink: Parking brake indicator light (red) flashes

-

EPB Warning Light

Brake system warning light (yellow indicator) output signal

OFF or ON

OFF: Brake system warning light (yellow indicator) turns off

ON: Brake system warning light (yellow indicator) illuminates

-

PERFORM ACTIVE TEST

HINT:

Using the Techstream to perform Active Tests allows relays, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests.

(a) Turn the engine switch off.

(b) Connect the Techstream to the DLC3.

(c) Turn the engine switch on (IG).

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / ABS/VSC/TRAC/EPB / Active Test.

(f) According to the display on the Techstream, perform the Active Test.

Chassis > ABS/VSC/TRAC/EPB > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Auto Mode

AUTO (shift-linked) mode

ON or OFF

  • Vehicle stopped
  • Engine switch on (IG)

EPB Warning Light

Brake system warning light (yellow)

ON or OFF

  • Vehicle stopped
  • Engine switch on (IG)

HINT:

EPB stands for electric parking brake.

PKB Light

Parking brake indicator light (red)

ON or OFF

  • Vehicle stopped
  • Engine switch on (IG)
  • Parking brake released

PKB Lock Control

Parking brake lock control

ON or OFF

  • Vehicle stopped
  • Engine switch on (IG)

PKB Release Control

Parking brake release control

ON or OFF

  • Vehicle stopped
  • Engine switch on (IG)

PKB Full Release Control

Parking brake full release control

ON or OFF

  • Vehicle stopped
  • Engine switch on (IG)
    EPB Switch Malfunction (C13B4)

    Diagnostic Trouble Code Chart

    See More:

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