Airbag System Tc And Cg Terminal Circuit

Restraints. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35
Supplemental Restraint System. Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35

DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK WIRE HARNESS (DLC3 - ECM)

CHECK WIRE HARNESS (CG OF DLC3 - BODY GROUND)

CHECK WIRE HARNESS (TC OF DLC3)

REPLACE ECM

AIRBAG SYSTEM - TC and CG Terminal Circuit


DESCRIPTION

DTC output mode is set by connecting terminals TC and CG of the DLC3.
The DTCs are displayed by blinking the SRS warning light.
HINT:
  1. Make sure that DTC B1281 has not been output. If DTC B1281 has been output, refer to the multiplex communication system.
  2. When each warning light keeps blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in each ECU is suspected.

WIRING DIAGRAM


Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Supplemental Restraint System.Airbag System.Airbag System Tc And Cg Terminal Circuit


INSPECTION PROCEDURE

1.CHECK WIRE HARNESS (DLC3 - ECM)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Supplemental Restraint System.Airbag System.Airbag System Tc And Cg Terminal Circuit

  1. Turn the ignition switch off.

  1. Disconnect the A12 connector from the center airbag sensor.

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

    Standard resistance:
    for 2AD-FHV, 2AD-FTV (for DPF), 2AD-FTV (for CCo)
    Tester Connection
    		Specified Condition
    E16-13 (TC) - A12-26 (TC)
    		Below 1 Ω
    for 1AZ-FE, for 2AZ-FE
    Tester Connection
    		Specified Condition
    E16-13 (TC) - A12-27 (TC)
    		Below 1 Ω


NG
REPLACE CENTER AIRBAG SENSOR ASSEMBLY
OK


2.CHECK WIRE HARNESS (CG OF DLC3 - BODY GROUND)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Supplemental Restraint System.Airbag System.Airbag System Tc And Cg Terminal Circuit

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    E16-4 (CG) - Body ground
    		Below 1 Ω


NG
REPAIR OR REPLACE WIRE HARNESS
OK


3.CHECK WIRE HARNESS (TC OF DLC3)


    Toyota Rav4. Aca30, 33, 38 Gsa33 Zsa30, 35.Supplemental Restraint System.Airbag System.Airbag System Tc And Cg Terminal Circuit

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    E16-13 (TC) - Body ground
    		1 MΩ or higher


NG
REPAIR OR REPLACE WIRE HARNESS
OK


4.REPLACE ECM

  1. Replace the ECM.

  1. Check the DTC of the ECM.

    Result
    Result
    		Proceed to
    DTC output mode is set (except center airbag sensor).
    		A
    Normal system code is output.
    		B
    DTC is output.
    		C


B
END

C
GO TO INSPECTION PROCEDURE OF DTC OUTPUT
A

REPAIR OR REPLACE WIRE HARNESS OR EACH ECU