Diagnosis

Important:
- Whenever cruise is turned OFF or ignition switch is closed, the Set to get Cruise feature requires the operator to set the initial set speed by using the Set/Coast button before the Resume/Accel slider switch input will be recognized.

Important:
- The Brake Before Cruise feature requires the cruise module to recognize a change in terminal D status, once each ignition Cycle, before allowing the Cruise Control to function. (Some Cruise Modules will use either D or G.)

1. Check that the Cruise Control Module Linkage is connected and moving freely.
2. Check Cruise Cable Adjustment.
- Cruise won't function with Hazard Lights ON.
- Make sure that CKT 17 and the stoplamps are working properly. If inoperative, Cruise Module will be disabled.
- Cruise performance can be affected by trailer towing and steep grades.
- Check for a broken (or partially broken) wire inside of the insulation which could cause system malfunction but prove GOOD in a continuity/ voltage check with a system disconnected. These circuits may be intermittent or resistive when loaded, and if possible, should be checked by monitoring for a voltage drop with the system operational (under load).
- Check for proper installation of aftermarket electronic equipment which may affect the integrity of other Systems (see Troubleshooting Procedures).
- Refer to System Diagnosis.
3. Check the conditions of the Cruise and ABS fuses. If fuse(s) is open, locate and repair source at overload. Replace fuse.
4. If fuse is not open, proceed with diagnostics.







CRUISE CONTROL WILL NOT ENGAGE




CRUISE CONTROL WILL NOT RESUME, ACCELERATE TAP-UP OR TAP-DOWN