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 power switch off.

(b) Connect the Techstream to the DLC3.

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

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / Electric Parking Brake / Data List.

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

Chassis > Electric Parking Brake > Data List

Tester Display

Measurement Item

Range

Normal Condition

Diagnostic Note

Number of Trouble Codes

Number of DTCs stored

0 to 255

0

-

FR Speed Sensor Open

Front speed sensor RH open detection

Normal or Error

Normal

-

FL Speed Sensor Open

Front speed sensor LH open detection

Normal or Error

Normal

-

RR Speed Sensor Open

Rear speed sensor RH open detection

Normal or Error

Normal

-

RL Speed Sensor Open

Rear speed sensor LH open detection

Normal or Error

Normal

-

EFI ECU Communication Open

ECM communication open detection

Normal or Error

Normal

-

Deceleration Sensor Open

Deceleration sensor (airbag ECU assembly) communication open detection

Normal or Error

Normal

-

HV ECU Communication Open

Hybrid vehicle control ECU communication open detection

Normal or Error

Normal

-

Body ECU Communication Open

Main body ECU (multiplex network body ECU) communication open detection

Normal or Error

Normal

-

Brake ECU Communication Open

Skid control ECU (brake booster with master cylinder assembly) communication open detection

Normal or Error

Normal

-

A/C ECU Communication Open

Air conditioning amplifier assembly communication open detection

Normal or Error

Normal

-

Navigation ECU Communication Open

Radio receiver assembly communication open detection

Normal or Error

Normal

-

Stop and Start ECU Communication Open

Engine stop and start ECU communication open detection

Normal or Error

Normal

This item is displayed on the Techstream but is not used

Deceleration Sensor Open (EPB)

Deceleration sensor (airbag ECU assembly) communication open detection

Normal or Error

Normal

HINT:

EPB stands for electric parking brake.

FR Wheel Speed

Front wheel speed sensor RH reading

0.0 to 326.4 km/h (0.0 to 202.8 mph)

When vehicle is stopped: 0.0 km/h (0.0 mph)

When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)

When not normal, front speed sensor RH system and CAN communication may be malfunctioning

FL Wheel Speed

Front wheel speed sensor LH reading

0.0 to 326.4 km/h (0.0 to 202.8 mph)

When vehicle is stopped: 0.0 km/h (0.0 mph)

When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)

When not normal, front speed sensor LH system and CAN communication may be malfunctioning

RR Wheel Speed

Rear wheel speed sensor RH reading

0.0 to 326.4 km/h (0.0 to 202.8 mph)

When vehicle is stopped: 0.0 km/h (0.0 mph)

When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)

When not normal, rear speed sensor RH system and CAN communication may be malfunctioning

RL Wheel Speed

Rear wheel speed sensor LH reading

0.0 to 326.4 km/h (0.0 to 202.8 mph)

When vehicle is stopped: 0.0 km/h (0.0 mph)

When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)

When not normal, rear speed sensor LH system and CAN communication may be malfunctioning

Deceleration Sensor 1

Deceleration sensor (airbag ECU assembly) 1 input signal

-18.300 to 18.318 m/s2

When vehicle is stopped: 0.000 m/s2

When driving vehicle: Continuously changes

When not normal, deceleration sensor (airbag ECU assembly) system and CAN communication may be malfunctioning

Deceleration Sensor 2

Deceleration sensor (airbag ECU assembly) 2 input signal

-18.300 to 18.318 m/s2

When vehicle is stopped: 0.000 m/s2

When driving vehicle: Continuously changes

When not normal, deceleration sensor (airbag ECU assembly) system and CAN communication may be malfunctioning

Forward and Rearward G

Deceleration sensor (airbag ECU assembly) input signal

-18.300 to 18.318 m/s2

When vehicle is stopped: 0.000 m/s2

When driving vehicle: Changes according to increase or decrease in speed

When not normal, deceleration sensor (airbag ECU assembly) system and CAN communication may be malfunctioning

Zero Point of Deceleration Sensor

Deceleration sensor (airbag ECU assembly) zero point

-4.595 to 4.559 m/s2

-

-

Zero Point of Deceleration Sensor 2

Deceleration sensor (airbag ECU assembly) 2 zero point

-4.595 to 4.559 m/s2

-

-

Vehicle Speed

Vehicle speed

0.0 to 326.4 km/h (0.0 to 202.8 mph)

When vehicle is stopped: 0.0 km/h (0.0 mph)

When driving vehicle: Changes according to vehicle speed (when vehicle speed is constant, there are no big changes in vehicle speed display)

When not normal, speed sensor system and CAN communication may be malfunctioning

ECU +B1 Voltage

Skid control ECU (brake booster with master cylinder assembly) +B1 voltage

0.00 to 20.00 V

11 to 14 V

-

ECU +B2 Voltage

Skid control ECU (brake booster with master cylinder assembly) +B2 voltage

0.00 to 20.00 V

11 to 14 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 +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 (20.3 to 135°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

Stop Light Switch

Stop light switch assembly input signal

OFF or ON

OFF: Brake pedal released

ON: Brake pedal depressed

-

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

When not normal, shift position signal system may be malfunctioning

IG Switch

IG power source status

OFF or ON

OFF: IG power source voltage is not input to skid control ECU (brake booster with master cylinder assembly)

ON: IG power source voltage is input to skid control ECU (brake booster with master cylinder 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.

EPB Lock Request

Lock demand status

OFF or ON

OFF: Not requested

ON: Requested

HINT:

EPB stands for electric parking brake.

FR Speed Signal Status

FR speed signal status

Normal or Stuck

Normal

-

FL Speed Signal Status

FL speed signal status

Normal or Stuck

Normal

-

RR Speed Signal Status

RR speed signal status

Normal or Stuck

Normal

-

RL Speed Signal Status

RL speed signal status

Normal or Stuck

Normal

-

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 Motor Adjustment Current

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

-6.9690 to 6.9140 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 Motor Adjustment Current

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

-6.9690 to 6.9140 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 power switch was turned on (IG) after EPB control was canceled

0 to 255 Times

-

HINT:

EPB stands for electric parking brake.

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

-

-

RH Actuator Motor Current Differential

Differences in parking brake motor RH (parking brake actuator assembly RH) monitoring current

-1.008 to 0.945 A

-

-

LH Actuator Motor Current Differential

Differences in parking brake motor LH (parking brake actuator assembly LH) monitoring current

-1.008 to 0.945 A

-

-

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 RH parking brake lock control permission status

OK or NG

OK

-

Permission of LH Interlocking PKB Release

Parking brake actuator assembly RH parking brake release control permission status

OK or NG

-

-

Permission of LH Interlocking Dynamic PKB

Parking brake actuator assembly RH 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

-

AUTO Indicator

AUTO indicator light output signal

OFF or ON

-

This item is displayed on the Techstream, however, it is not used for this vehicle

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 power switch off.

(b) Connect the Techstream to the DLC3.

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

(d) Turn the Techstream on.

(e) Enter the following menus: Chassis / Electric Parking Brake / Active Test.

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

Chassis > Electric Parking Brake > Active Test

Tester Display

Measurement Item

Control Range

Diagnostic Note

Auto Mode

AUTO (shift-linked) mode

ON or OFF

  • Vehicle stopped
  • Power switch on (IG)

EPB Warning Light

Brake system warning light (yellow)

ON or OFF

  • Vehicle stopped
  • Power switch on (IG)

HINT:

EPB stands for electric parking brake.

PKB Light

Parking brake indicator light (red)

ON or OFF

  • Vehicle stopped
  • Power switch on (IG)

PKB Lock Control

Parking brake lock control

ON or OFF

  • Vehicle stopped
  • Power switch on (IG)

PKB Release Control

Parking brake release control

ON or OFF

  • Vehicle stopped
  • Power switch on (IG)

PKB Full Release Control

Parking brake full release control

ON or OFF

  • Vehicle stopped
  • Power switch on (IG)
    Deceleration Sensor (C1245)

    Diagnostic Trouble Code Chart

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