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 the SRS warning light.

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

Wiring Diagram:

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 off.
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 center.
d. Disconnect the connectors from the horn button assembly.
e. Disconnect the connectors from the front passenger airbag assembly.
f. Disconnect the connector from the instrument panel airbag assembly lower No.1.
g. Disconnect the connectors from the front seat airbag assembly LH and RH.
h. Disconnect the connectors from the curtain shield airbag assembly LH and RH.
i. Disconnect the connectors from the front seat outer belt assembly LH and RH.