Cruise Control Indicator Light Circuit
- Remove the cruise control ECU with connector connected. See Figure. Turn ignition switch to ON position. Using voltmeter positive lead, backprobe cruise control ECU connector terminal No. 11 (Black/Blue wire) with negative lead to ground. With cruise control switch in OFF position, battery voltage should be present. With cruise control 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 DIAGNOSIS, perform next test listed.
- Check instrument cluster. See INSTRUMENT PANELS article. Repair as necessary. If instrument cluster is okay, replace cruise control ECU and retest system.