Airbag System Tc And Cg Terminal Circuit


DESCRIPTION

WIRING DIAGRAM

INSPECTION PROCEDURE

CHECK WIRE HARNESS (DLC3 - CENTER AIRBAG SENSOR AND BODY GROUND)

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 communicated through SRS warning light blinking patterns.
HINT:
When one or more of the warning lights blinks continuously, the cause may be a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in each ECU.

WIRING DIAGRAM


Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Supplemental Restraint System.Airbag System.Airbag System Tc And Cg Terminal Circuit


INSPECTION PROCEDURE

CAUTION:
Be sure to perform the following procedures before troubleshooting to avoid unexpected airbag deployment.
  1. Turn the ignition switch OFF.
  2. Disconnect the cable from the negative (-) battery terminal, and wait for at least 90 seconds.
1.CHECK WIRE HARNESS (DLC3 - CENTER AIRBAG SENSOR AND BODY GROUND)
Toyota Fortuner. Ggn50, 60 Kun51, 61 Tgn51 Lan50.Supplemental Restraint System.Airbag System.Airbag System Tc And Cg Terminal Circuit

  1. Disconnect the A24 ECU connector.

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

    Standard resistance:
    Tester Connection
    		Specified Condition
    D3-13 (TC) - A24-15 (TC)
    		Below 1 Ω
    D3-4 (CG) - Body ground
    		Below 1 Ω
    A24-15 (TC) - Body ground
    		1 MΩ or higher


NG
REPAIR OR REPLACE HARNESS AND CONNECTOR
OK

REPLACE CENTER AIRBAG SENSOR ASSEMBLY