Diagnostic Procedure

When cruise control functions are canceled, CRUISE indicator light will blink 5 times, indicating a fault is present and trouble code(s) are stored in Engine Control Module (ECM) memory. See RETRIEVING DIAGNOSTIC TROUBLE CODES  and retrieve trouble code(s). For DTC definitions, see DIAGNOSTIC TROUBLE CODE DEFINITIONS  table. Perform appropriate DTC test under DIAGNOSTIC TESTS . If a fault or symptom is present, but no trouble codes were set, identify symptom and perform appropriate test. See SYMPTOM DIAGNOSIS  under TROUBLE SHOOTING.