Instrument Panel Cluster (IPC) Inoperative
WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 1999 Oldsmobile Bravada, 1999 GMC Sonoma, 1999 GMC Jimmy, 1999 GMC Envoy, and 1999 Chevrolet S10 Pickup. However, it is still accessible from the selected car via links, so may be relevant.
- Perform INSTRUMENT PANEL CLUSTER (IPC) SYSTEM CHECK under SYSTEM TESTS. Go to next step.
- Disconnect IPC connector. Remove instrument cluster as necessary for access to IPC connector. See INSTRUMENT PANEL CLUSTER (IPC) under REMOVAL & INSTALLATION. Using a test light connected to ground, backprobe IPC connector terminal A7 (Pink wire). See Figure . Turn ignition on. If test light illuminates, go to next step. If test light does not illuminate, go to step 7).
- Connect test light between IPC connector terminals A7 (Pink wire) and A9 (Black/White wire). If test light illuminates, go to next step. If test light does not illuminate, go to step 6).
- Using a test light connected to ground, backprobe IPC connector terminal A5 (Brown wire). If test light illuminates, go to step 8). If test light does not illuminate, go to next step.
- Repair open, high resistance or short to ground in Brown wire between IPC connector terminal A5 and instrument panel fuse block. See WIRING DIAGRAMS . Retest operation.
- Repair open or high resistance in Black/White wire between IPC connector terminal A9 and ground. See WIRING DIAGRAMS . Retest operation.
- Repair open, high resistance or short to ground in Pink wire between IPC connector terminal A7 and instrument panel fuse block. See WIRING DIAGRAMS . Retest operation.
- Replace IPC. See INSTRUMENT PANEL CLUSTER (IPC) under REMOVAL & INSTALLATION. Perform INSTRUMENT PANEL CLUSTER (IPC) SYSTEM CHECK under SYSTEM TESTS.