Active Torque Control 4Wd System 4Wd Indicator Light Remains On

Drive Line. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Differential. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK FOR DTC

CHECK WIRE HARNESS (4WD CONTROL ECU - BATTERY)

CHECK COMBINATION METER

ACTIVE TORQUE CONTROL 4WD SYSTEM - 4WD Indicator Light Remains ON


DESCRIPTION

The 4WD control ECU is connected to the combination meter via the CAN communication system.
  1. w/ Multi-information display:
    If the 4WD control ECU stores any DTCs which are related to the active torque control system, the meter caution indicator light comes on and the warning message is displayed on the multi-information display in the combination meter.
  1. w/o Multi-information display:
    If the 4WD control ECU stores any DTCs which are related to the active torque control system, the 4WD indicator light comes on in the combination meter.

WIRING DIAGRAM


Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Differential.Active Torque Control 4Wd System.Active Torque Control 4Wd System 4Wd Indicator Light Remains On


INSPECTION PROCEDURE

HINT:
Check the condition of each related circuit connector before troubleshooting (RAV4_ACA30 RM000000UZ306OX.html).
1.CHECK FOR DTC

  1. Check the output DTC (RAV4_ACA30 RM0000020BA00FX.html).


Result:

Result
Proceed to
Neither CAN communication system DTC nor 4WD control system DTC is output
A
CAN communication DTC is output
B
4WD control system DTC is output
C
HINT:
When DTCs indicating a CAN communication system malfunction are output, repair the CAN communication system before repairing each corresponding sensor.


B
REPAIR CIRCUIT INDICATOR BY OUTPUT CODE (CAN COMMUNICATION SYSTEM)

C
REPAIR CIRCUIT INDICATOR BY OUTPUT CODE (4WD CONTROL SYSTEM)
A


2.CHECK WIRE HARNESS (4WD CONTROL ECU - BATTERY)
Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Differential.Active Torque Control 4Wd System.Active Torque Control 4Wd System 4Wd Indicator Light Remains On

  1. Disconnect the E67 ECU connector.

  1. Measure the voltage of the wire harness side connector.

Voltage:
Tester Connection
Condition
Specified Condition
E67-11 (IG1) - Body ground
Ignition switch on (IG)
10 to 14 V


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK


3.CHECK COMBINATION METER

  1. Check the combination meter (RAV4_ACA30 RM0000020M0001X.html).

    OK:
    The combination meter is normal.


NG
REPLACE COMBINATION METER
OK

REPLACE 4WD CONTROL ECU