B1650

DTC B1650 OCCUPANT CLASSIFICATION SYSTEM MALFUNCTION

CIRCUIT DESCRIPTION

DTC Detecting Condition:

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

If the airbag sensor assembly center receives signals from the occupant classification ECU, it determines whether or not the front passenger airbag assembly and the front seat airbag assembly 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 - 8:

Step 9 - 10:

Step 11 - 12:

Step 13 - 14:

Step 15 - 16:

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 front seat airbag assembly LH.
g. Disconnect the connector from the front seat airbag assembly RH.
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.