Airbag System

DTC B1860/64 SHORT IN KNEE AIRBAG (D SIDE) SQUIB CIRCUIT
DTC B1861/64 OPEN IN KNEE AIRBAG (D SIDE) SQUIB CIRCUIT
DTC B1862/64 SHORT IN KNEE AIRBAG (D SIDE) SQUIB CIRCUIT (TO GROUND)
DTC B1863/64 SHORT IN KNEE AIRBAG (D SIDE) SQUIB CIRCUIT (TO B+)

CIRCUIT DESCRIPTION

DTC Detecting Condition:

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

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

These DTCs are recorded when a malfunction is detected in the knee airbag (D side) 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 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.

HINT:
- Perform the simulation method by selecting the "check mode" (signal check) with the hand-held tester.
- After selecting the "check mode" (signal check), perform the simulation method by wiggling each connector of the airbag system or driving the vehicle on a city or rough road.