SUPPLEMENTAL RESTRAINT SYSTEMS: AIRBAG SYSTEM: B1650/32: Occupant Classification System Malfunction
B1650/32 - Occupant Classification System Malfunction
DESCRIPTION
The occupant classification system circuit consists of the center airbag sensor assembly and the occupant classification system.
If the center airbag sensor assembly receives signals from the occupant classification ECU, it determines whether the front passenger airbag, front
passenger side knee airbag and front seat belt pretensioner RH should be operated.
DTC B1650/32 is recorded when a malfunction is detected in the occupant classification system circuit.
WIRING DIAGRAM
INSPECTION PROCEDURE
PROCEDURE
1. CHECK DTC (OCCUPANT CLASSIFICATION ECU)
(a) Turn the engine switch on (IG).
(b) Using the Techstream, check for DTCs of the occupant classification ECU See: Restraints and Safety Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes.
NG -- REPAIR CIRCUITS INDICATED BY OUTPUT DTCS See: Diagnostic Trouble Code Descriptions/Occupant
Classification System
OK -- Continue to next step.
2. CHECK CONNECTORS
(a) Turn the engine switch off.
(b) Disconnect the cable from the negative (-) battery terminal.
NOTICE:
Wait at least 90 seconds after disconnecting the cable from the negative (-) battery terminal to disable the SRS system.
(c) Check that the connectors are properly connected to the center airbag sensor assembly and occupant classification ECU. Also check
that the connectors that link the No. 2 floor wire, and front seat wire RH are properly connected.
OK:
The connectors are properly connected.
HINT
If the connector is not connected securely, reconnect the connector and proceed to the next inspection.
(d) Disconnect the connectors from the center airbag sensor assembly and occupant classification ECU. Also disconnect the connectors
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