GSIC - Global Service Information Center

### AIRBAG SYSTEM > TC and CG Terminal Circuit

## for Preparation Click here

## 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

## 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 ASSEMBLY AND BODY GROUND)

1. Disconnect the A14 ECU connector.

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

   Standard resistance:

     Tester Connection | Specified Condition
     D1-13 (TC) - A14-15 (TC) | Below 1 Ω
     D1-4 (CG) - Body ground | Below 1 Ω
     A14-15 (TC) - Body ground | 1 MΩ or higher

| NG |

REPAIR OR REPLACE HARNESS AND CONNECTOR

OK |

REPLACE CENTER AIRBAG SENSOR ASSEMBLY