B1620

DTC B1620 SIDE AIRBAG SENSOR ASSEMBLY (D SEAT SIDE) MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The side airbag sensor assembly LH consists of the safing sensor, the diagnostic circuit, the lateral deceleration sensor, etc.

If the airbag sensor assembly center receives signals from the lateral deceleration sensor, it determines whether or not the SRS should be activated.

DTC B1620/21 is recorded when a malfunction is detected in the side airbag sensor assembly LH circuit.

Wiring Diagram:

Step 1:

Step 2 - 3:

Step 4 - 5:

Step 6 - 7:

Step 8 - 9:

Step 10 - 11:

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. Disconnect the connector from the front seat airbag assembly LH.
h. Disconnect the connector from the front seat airbag assembly RH.
i. Disconnect the connector from the curtain shield airbag assembly LH.
j. 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.