Component Tests and General Diagnostics

Diagnosis Circuit

DESCRIPTION

DTC output mode is set by connecting terminals TC and CG of the DLC3.
DTCs are displayed by blinking the SRS warning light.

HINT:
- When each warning light stays blinking, a ground short in the wiring of terminal TC of the DLC3 or an internal ground short in each ECU is suspected.
- A DTC output mode signal is transmitted through BEAN to each ECU including the center airbag sensor assembly, except for the skid control ECU with actuator. Thus when all systems except the vehicle stability control system do not enter DTC output mode, it can be suspected that there is an ECM malfunction.

Wiring Diagram:

Step 1:

Step 2-3:

INSPECTION PROCEDURE

HINT: Make sure that DTC B1281 has not been output. If DTC B1281 has been output, refer to the multiplex communication system.