DTC U1096: Lost Communications With Instrument Panel Cluster
- Perform VEHICLE ON-BOARD DIAGNOSTIC SYSTEM CHECK under SELF-DIAGNOSTIC SYSTEM. If body control module diagnostic system check has been performed, go to next step.
- Observe scan tool display for DTC U1096. If scan tool displays LAST TEST FAILED for DTC U1096, go to next step. If scan tool does not display LAST TEST FAILED for DTC U1096, problem is intermittent. Check for any poor connections to instrument panel cluster (IPC). See appropriate ANALOG INSTRUMENT PANELS article. Repair as necessary and retest operation.
- Disconnect instrument panel cluster. See appropriate ANALOG INSTRUMENT PANELS article for access. Connect test light between ground and Gray 24-pin Instrument Panel Cluster (IPC) connector terminal B2 (Orange wire). See Figure. If test light illuminates, go to next step. If test light does not illuminate, repair open in Orange wire between IPC and BODY COMP fuse (10-amp), located in instrument panel fuse block. See appropriate ANALOG INSTRUMENT PANELS article.
- Connect test light between ground and Gray 24-pin Instrument Panel Cluster (IPC) connector terminal A1 (Pink wire). Turn ignition on. If test light illuminates, go to next step. If test light does not illuminate, repair open in Pink wire between IPC and IGN 1 fuse (10-amp), located in instrument panel fuse block. See appropriate ANALOG INSTRUMENT PANELS article.
- Connect test light between battery voltage and Gray 24-pin Instrument Panel Cluster (IPC) connector terminals A6 and B4 (Black wires). If test light illuminates, go to next step. If test light does not illuminate, repair open in appropriate Black wire between IPC and ground. See GROUND DISTRIBUTION article in WIRING DIAGRAMS.
- Check for poor connections to IPC. Repair as necessary. If IPC connections are okay, replace IPC. See appropriate ANALOG INSTRUMENT PANELS article.