Trouble Shooting
- PCM will disable cruise control if any of the following conditions are detected:
- Engine is off.
- Transaxle is in Park, Neutral, Low or Reverse.
- Engine speed is too high.
- Vehicle speed is too high.
- Diagnostic Trouble Codes (DTCs) are set.
- Ensure cruise control module linkage is connected and moving freely. Check for a broken or partially broken wire inside insulation which could cause system malfunction but prove good in a continuity/voltage check with system disconnected.
- Check for Diagnostic Trouble Codes (DTCs). If any codes are present, see appropriate TESTS W/CODES article in ENGINE PERFORMANCE section. Refer to menu below.
- Ensure cruise control linkage is not binding. Check cruise control cable adjustment. See CRUISE CONTROL CABLE under ADJUSTMENTS . Ensure brake switch is installed correctly. See BRAKE & CLUTCH RELEASE SWITCHES under ADJUSTMENTS . Ensure center high mounted brakelight is operating.
- Check fuses, and replace as necessary. Visually inspect for broken or open wires. Ensure any aftermarket electronic equipment is properly installed.