TC Terminal Circuit

CIRCUIT DESCRIPTION

Making a short circuit between terminals TC and CG of the DLC3 will output DTCs from the DLC3.

HINT:
- Make sure that DTC B1281 has not been output. If DTC B1281 has been output, refer to the multiplex communication system.
- 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.
- The DTC output mode signal is transmitted through CAN and BEAN to each ECU including the airbag sensor assy center, except for the multi-display. Thus when all systems except the multi-display system do not enter DTC output mode, it can be suspected that there is an ECM malfunction.

Wiring Diagram:

Step 1:

Step 2 - 4:

INSPECTION PROCEDURE