Self-Diagnostic System: Notes

WARNING: Before servicing steering column or instrument panel components on vehicles with Supplemental Inflatable Restraint (SIR) system, disable air bag system. See DISABLING & ACTIVATING SUPPLEMENTAL RESTRAIN SYSTEM in AIR BAG RESTRAINT SYSTEM article. DO NOT apply electrical power to any component on steering column without deactivating air bag system. Air bag may deploy.

CAUTION: When battery is disconnected, radio will go into anti-theft protection mode. Obtain radio anti-theft protection code from owner prior to servicing vehicle.

NOTE: Intermittent failures may cause CRUISE indicator light to flicker or come on. Light will go out after fault goes away. Fault may or may not be present at time of testing. However, a corresponding Diagnostic Trouble Code (DTC) may be stored in CCM memory. See DIAGNOSTIC TESTS .

When vehicle is in cruise control mode, system will cancel due to a malfunction in actuator, speed sensor or CRUISE ON-OFF switch circuit. When cruise control functions are canceled, CRUISE indicator light will blink 5 times, indicating a 2-digit DTC is stored in CCM memory. See CRUISE CONTROL MODULE DIAGNOSTIC TROUBLE CODE DEFINITION . Two-digit DTC is stored in CCM memory.

If a fault or symptom is present, but no DTCs were set, a circuit function test can be performed. Circuit function test will display a one-digit function code if circuit tested is okay. See CRUISE CONTROL FUNCTION TEST under TROUBLE SHOOTING.

Before proceeding with cruise control system self-diagnostic system, ensure basic inspection of system connectors and harnesses has been performed. If no faults were found during basic inspection, proceed with self-diagnostic system.