TC Terminal Circuit

TC Terminal Circuit

CIRCUIT DESCRIPTION

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

HINT: When each warning light stays blinking, a short to ground in the wiring of the terminal TC of the DLC3 or an internal ground short in each ECU is suspected.

Wiring Diagram (Part 1):

Wiring Diagram (Part 2):

Step 1:

Step 2-3:

INSPECTION PROCEDURE

CAUTION: Be sure to perform the following procedures before troubleshooting to avoid unexpected airbag deployment.

a. Turn the ignition switch to the LOCK position.
b. Disconnect the negative (-) terminal cable from the battery, and wait for at least 90 seconds.
c. Disconnect the connectors from the airbag sensor assembly.
d. Disconnect the connectors from the steering wheel pad.
e. Disconnect the connectors from the front passenger airbag assembly.
f. w/ Side and curtain shield airbag:
Disconnect the connectors from the side airbag assembly LH and RH.
g. w/ Side and curtain shield airbag:
Disconnect the connectors from the curtain shield airbag assembly LH and RH.
h. Disconnect the connectors from the front seat outer belt LH and RH.