B1812

DTC B1812 SHORT IN D SQUIB (DUAL STAGE - 2ND STEP) CIRCUIT (TO GROUND)

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The D squib (Dual stage - 2nd step) circuit consists of the airbag sensor assembly center, the spiral cable sub-assembly and the horn button assembly.

The circuit instructs the SRS to deploy when deployment conditions are met.

These DTCs are recorded when a malfunction is detected in the D squib (Dual stage - 2nd step) circuit.

Wiring Diagram:

Step 1:

Step 2 - 3:

Step 4 - 5:

Step 6:

Step 7 - 8:

Step 9:

Step 10:

Step 11:

Step 12:

Step 13 - 14:

Step 15 - 16:

Step 17 - 18:

Step 19:

Step 20:

Step 21:

Step 22:

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 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. w/ Side and curtain shield airbag:
Disconnect the connector from the front seat airbag assembly LH.

h. w/ Side and curtain shield airbag:
Disconnect the connector from the front seat airbag assembly RH.

i. w/ Side and curtain shield airbag:
Disconnect the connector from the curtain shield airbag assembly LH.

j. w/ Side and curtain shield airbag:
Disconnect the connector from the curtain shield airbag assembly RH.

k. Disconnect the connector from the front seat outer belt assembly LH.
l. Disconnect the connector from the front seat outer belt assembly RH.