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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1155 (Seat Belt System) >> Diagnostic Information and Procedures >> Seat Belt Indicator Circuit Malfunction - Passenger >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2008 Cadillac CTS. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, observe the scan tool Passenger Seat Belt Switch parameter while buckling and unbuckling the passenger seat belt. The parameter should change between Buckled and Unbuckled.
    • If the parameter does not cycle between the specified values, refer to Passenger Seat Belt Switch Circuit Malfunction.
  2. Ignition ON, while sitting in the passenger seat with the seat belt unbuckled, verify the passenger seat belt warning indicator is illuminated on the PPS display.
    • If the indicator is not illuminated, replace the PPS display.
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