Cruise Control Systems: Testing: Notes
NOTE:
Test vehicles with computerized engine controls for stored computer codes. Repair codes and related problems prior to cruise control diagnosis. For additional information, refer to the TESTS W/CODES - EEC-IV
article in ENGINE PERFORMANCE section.
NOTE:
When diagnosing any speed control system malfunction, perform the following tests in the order they are presented. Some of the tests depend on proper results from previous tests.