Cruise Control Indicator Light Circuit

Remove Engine Control Module (ECM) with connectors connected. See Figure. Turn ignition switch to ON position. Measure voltage by backprobing between ECM E8 connector terminal No. 9 (Yellow/Black wire) and ground. With cruise ON-OFF switch in OFF position, battery voltage should be present. With cruise ON-OFF switch in ON position, voltage should be less than 1.2 volts. If voltage is not as specified, go to next step. If voltage is as specified, no problem is indicated at this time. Fault may be intermittent. If sent here from SYMPTOM TESTING, perform next test listed.
Check instrument cluster. See appropriate INSTRUMENT PANELS article. Repair as necessary. If instrument cluster is okay, replace ECM and retest system.