Seat Belt Indicator Circuit Malfunction - Passenger
Seat Belt Indicator Circuit Malfunction - Passenger
Diagnostic Instructions
* Perform the Diagnostic System Check - Vehicle (Diagnostic System Check - Vehicle) prior to using this diagnostic procedure.
* Review Strategy Based Diagnosis (Strategy Based Diagnosis) for an overview of the diagnostic approach.
* Diagnostic Procedure Instructions (Diagnostic Procedure Instructions)provides an overview of each diagnostic category.
Circuit/System Description
The Passenger Presence System sensor detects if the seat is occupied and the passenger seat belt switch detects seat belt status, the signals are sent to the IPC via a serial data communication message. The instrument panel cluster (IPC) controls the passenger seat belt indicator by using the serial data communication message.
Reference Information
Schematic Reference
Seat Belt Schematics ([1][2]Electrical Diagrams)
Connector End View Reference
Component Connector End Views (Connector Views)
Description and Operation
Seat Belt System Description and Operation (Description and Operation)
Electrical Information Reference
* Circuit Testing (Circuit Testing)
* Testing for Intermittent Conditions and Poor Connections (Testing for Intermittent Conditions and Poor Connections)
* Connector Repairs (Connector Repairs)
* Wiring Repairs (Wiring Repairs)
Scan Tool Reference
Control Module References (Programming and Relearning)for scan tool information
Circuit/System Testing
Important: When removing connectors inspect for damage or corrosion. Damage or corrosion in the following requires repair or replacement of the affected component/connector.
* The seat belt switch - right
* The SDM module
* The seat belt switch - right wiring harness connector
* The SDM wiring harness connector
1. Observe the Passenger Air Bag ON/OFF status indicator located in the instrument panel (I/P). Turn ON the ignition, both ON and OFF indicators will turn ON for 5 seconds. Verify that the Passenger Air Bag ON/OFF status indicator illuminates.
• If the Passenger Air Bag ON/OFF status indicator does not illuminate, refer to Passenger Presence System Indicator Circuit Malfunction (Passenger Presence System Indicator Circuit Malfunction).
2. Sit in the front passenger seat with the ignition ON and observe the Passenger Air Bag ON/OFF indicator, which contains the passenger seat belt indicator. Monitor the passenger seat belt indicator while buckling and unbuckling the passenger seat belt. The passenger seat belt indicator should turn OFF and ON when the passenger seat belt is unbuckled and buckled. Verify that the passenger seat belt indicator turns ON and OFF.
• If the indicator does perform as described, test and repair both seat belt switch - right signal and ground circuit for an open, high resistance. If both circuits test normal then replace the seat belt switch - right.
3. Ignition OFF, remove the IPC connector and the Passenger Air Bag ON/OFF connector. Refer to Instrument Panel Inflatable Restraint Module Replacement (Instrument Panel Inflatable Restraint Module Replacement).
• Test the Passenger Seat Belt Indicator Control circuit between the IPC and the passenger Air Bag ON/OFF connector for an open or high resistance. Verify that an open or high resistance does not exist.
• If any of the above conditions are found, make the appropriate repair.
Repair Instructions
Perform the Diagnostic Repair Verification (Verification Tests) after completing the diagnostic procedure.
* Driver or Passenger Seat Belt Buckle Replacement (Driver or Passenger Seat Belt Buckle Replacement)
* Instrument Panel Inflatable Restraint Module Replacement (Instrument Panel Inflatable Restraint Module Replacement)
* Control Module References (Programming and Relearning)for SDM and BCM replacement, setup, and programming