Seat Belt Indicator Circuit Malfunction. Cadillac STS 2005

For 1990-2009 cars only

Makes 🢒 Cadillac 🢒 2005 🢒 STS 🢒 Vehicle Control Systems 🢒 Vehicle DTC Information 🢒 Seat Belt Indicator Circuit Malfunction

Step	Action	Yes	No
Schematic Reference: Seat Belt Schematics
1	Did you review the Seat Belt System Description and Operation and perform the necessary inspections?	Go to Step 2	Go to Symptoms - Seat Belts
2	Turn ON the ignition, with the engine OFF. Monitor the fasten safety belt indicator while buckling and unbuckling the driver seat belt. Does the system operate properly?	Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems	Go to Step 3
3	Buckle the driver's seat belt. With a scan tool, observe the Driver Side Belt Status parameter in the SIR scan tool data list. Buckle the passenger seat belt. With a scan tool, observe the Passenger Side Belt Status parameter in the SIR scan tool data list. Does the scan tool indicate that the Driver and Passenger Side Belt Status parameter displays Buckled?	Go to Step 4	Go to Step 5
4	Replace the instrument panel cluster (IPC). Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Did you complete the replacement?	Go to Step 8	--
5	Turn OFF the ignition. Disconnect the inflatable restraint sensing and diagnostic module (SDM) connector. Refer to Control Module References in Computer/Integrating Systems for replacement, setup, and programming. Disconnect the driver and/or passenger seat belt switch connector. Test the driver and/or passenger seat belt switch signal circuit for an open or high resistance. Did you find and correct the condition?	Go to Step 8	Go to Step 6
6	Test the driver and/or passenger seat belt switch ground circuit for an open or high resistance. Did you find and correct the condition?	Go to Step 8	Go to Step 7
7	Replace the driver or passenger seat belt switch. Refer to Seat Belt Buckle Pretensioner Replacement . Did you complete the replacement?	Go to Step 8	--
8	Reconnect all components and connectors. Operate the system in order to verify the repair. Operate the system in order to verify the repair. Did you find and correct the condition?	System OK	Go to Step 3