B1635

DTC B1635/24 Front Passenger Side Rear Airbag Sensor Circuit Malfunction

DESCRIPTION

DTC Detections Conditions:

The airbag sensor LH consists of parts such as the safing sensor, the diagnostic circuit and the lateral deceleration sensor. The configuration of the rear airbag sensor RH is the same as that of the LH.

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

DTC B1630/23 is set when a malfunction is detected in the curtain shield airbag sensor (driver seat side) circuit.
DTC B1635/24 is set when a malfunction is detected in the curtain shield airbag sensor (front passenger seat side) circuit.

HINT: Troubleshoot DTC B1620/21 first when the DTC B1620/21 and B1630/23 are output simultaneously.

Wiring Diagram:

INSPECTION PROCEDURE

CAUTION: In order to prevent unexpected airbag deployment, disconnect the following connectors before inspecting parts such as wire harnesses, if the application of tester probes to the center airbag sensor assembly connector is necessary.

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 center airbag sensor assembly.
d. Disconnect the connectors from the steering pad.
e. Disconnect the connector from the front passenger airbag assembly.
f. Disconnect the connector from the front seat airbag assembly LH.
g. Disconnect the connector from the front seat airbag assembly RH.

HINT: Skip the following steps if side and curtain shield airbags are not fitted.

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