All Gauges Not Operating
- Turn ignition on. Using scan tool, select ELECTRO/MECH CLUSTER. If scan tool displays BUS OPERATIONAL, go to next step. If scan tool displays any other message, see appropriate VEHICLE COMMUNICATIONS article. If scan tool displays NO RESPONSE , see appropriate VEHICLE COMMUNICATIONS article.
- Using scan tool, select BODY, then BODY COMPUTER. Select SYSTEM TEST, then PCM MONITOR. If scan tool displays PCM ACTIVE ON THE BUS, go to next step. If scan tool does not display PCM ACTIVE ON THE BUS, see appropriate VEHICLE COMMUNICATIONS article.
- Disconnect left instrument cluster 10-pin connector C1. Turn ignition on. Using external voltmeter, measure voltage between ground and terminal No. 9 (Pink wire) on instrument cluster harness connector. If voltage is 10 volts or less, repair open Pink wire. If voltage is more than 10 volts, replace instrument cluster.