B1650

DTC B1650 OCCUPANT CLASSIFICATION SYSTEM MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detecting Condition:

The occupant classification system circuit consists of the airbag sensor assy center and the occupant classification system.

If the airbag sensor assy center receives signals from the occupant classification ECU, it determines whether or not the front passenger airbag assy and the side airbag assy RH should be operated.

DTC B1650/32 is recorded when a malfunction is detected in the occupant classification system circuit.

Wiring Diagram:

Step 1:

Step 2 - 4:

Step 5 - 6:

Step 7:

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 assy center.
d. Disconnect the connectors from the horn button assy.
e. Disconnect the connectors from the front passenger airbag assy.
f. Disconnect the connector from the front seat airbag assy LH.
g. Disconnect the connector from the front seat airbag assy RH.
h. w/ Curtain shield airbag:
Disconnect the connector from the curtain shield airbag assy LH.

i. w/ Curtain shield airbag:
Disconnect the connector from the curtain shield airbag assy RH.

j. Disconnect the connector from the front seat outer belt assy LH.
k. Disconnect the connector from the front seat outer belt assy RH.