B1863

DTC B1863 SHORT IN KNEE AIRBAG SQUIB CIRCUIT (TO B+)

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The knee airbag squib circuit consists of the airbag sensor assembly center and the instrument panel airbag assembly lower No.1.

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

DTC B1860 is recorded when a short circuit is detected in the knee airbag squib circuit.

Wiring Diagram:

Step 1:

Step 2 - 3:

Step 4 - 5:

Step 6 - 7:

Step 8:

Step 9:

Step 10:

Step 11:

Step 12:

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.