All Gauges Not Operating Correctly
- Turn ignition off. Remove and inspect fuses No. 7 (20-amp) and No. 14 (10-amp) in junction block. If both fuses are okay, go to next step. If either fuse is blown, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
- Install fuses. Connect scan tool to Data Link Connector (DLC). Turn ignition on. Using scan tool, retrieve Body Control Module (BCM) DTCs. If no DTCs exist, go to next step. If any DTCs exist, perform appropriate test. See DIAGNOSTIC TROUBLE CODE IDENTIFICATION table under SELF-DIAGNOSTIC SYSTEM.
- Using scan tool, retrieve DTCs. If no DTCs exist, go to next step. If any DTCs exist, perform appropriate test. See DIAGNOSTIC TROUBLE CODE IDENTIFICATION table under SELF-DIAGNOSTIC SYSTEM.
- Turn ignition off. Disconnect instrument cluster harness connector C1. Measure resistance between ground and terminal No. 6 (Black/Light Green wire) at instrument cluster harness connector C1. See Figure . If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black/Light Green wire between instrument cluster and ground.
- Turn ignition off. Disconnect instrument cluster harness connector C2. Turn ignition on. Measure voltage at terminal No. 2 (Dark Blue/White wire) at instrument cluster harness connector C2. If battery voltage exists, go to next step. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.
- Turn ignition off. Measure resistance between ground and terminal No. 6 (Black wire) at instrument cluster harness connector C2. If resistance is 5 ohms or less, go to next step. If resistance is greater than 5 ohms, repair open in Black wire between instrument cluster and ground.
- Measure voltage at terminal No. 1 (Pink/Red wire) at instrument cluster harness connector C1. If battery voltage exists, replace instrument cluster. If battery voltage does not exist, repair power distribution circuit as necessary. See POWER DISTRIBUTION article in WIRING DIAGRAMS.