B1653

DTC B1653 SEAT POSITION SENSOR ASSEMBLY MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The seat position air bag sensor circuit consists of the air bag sensor assembly center and the seat position air bag sensor.

DTC B1653/35 is recorded when a malfunction is detected in the seat position air bag sensor circuit.

Wiring Diagram:

Step 1:

Step 2 - 3:

Step 4 - 5:

Step 6 - 7:

Step 8 - 9:

INSPECTION PROCEDURE

CAUTION: Be sure to perform the following procedures before troubleshooting to avoid unexpected air bag 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 air bag sensor assembly center.
d. Disconnect the connectors from the horn button assembly.
e. Disconnect the connectors from the front passenger air bag assembly.
f. w/ Side air bag: Disconnect the connector from the front seat air bag assembly LH.
g. w/ Side air bag: Disconnect the connector from the front seat air bag assembly RH.
h. w/ Curtain shield air bag: Disconnect the connector from the curtain shield air bag assembly LH.
i. w/ Curtain shield air bag: Disconnect the connector from the curtain shield air bag 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.