Cruise Control Symptom Troubleshooting

Symptom Diagnostic procedure Also check for 
Cruise control cannot be set 1.
2.


3.
4. 
Check for PGM-FI and body DTCs.
Check the No. 14 (15 A) fuse in the under-hood fuse/relay box, and No. 4 (10 A) fuse in the under-dash fuse/relay box.
Do the cruise control input test.
Do the cruise control main switch test. 
 
Cruise control can be set, but the cruise main switch indicator does not come on Do the cruise control main switch test. Faulty cruise control main switch 
Cruise control can be set, but the CRUISE CONTROL indicator does not come on 1.
2.


3. 
Check for PGM-FI and body DTCs.
Do the gauge control module self-diagnostic function procedure.
Do the cruise control input test.
Test the cruise control indicator signal input. 
Faulty gauge control module 
Vehicle does not decelerate or accelerate accordingly when the set/decel or resume/accel switch is pressed 1.
2.


3. 
Check for PGM-FI and body DTCs.
Do the cruise control input test.
Test the cruise control set/decel, resume/accel switch signal input.
Do the cruise control set/decel, resume/accel, cancel switch test. 
Open circuit, loose or disconnected terminals: PNK, GRN/RED or GRY, LT GRN/BLK 
Set speed does not cancel when the brake pedal is pressed 1.
2.

3.

4. 
Check for PGM-FI and body DTCs.
Check the No. 4 (10 A) fuse in the under-dash fuse/relay box.
Do the cruise control input test.
Test the brake pedal position switch signal input.
Do the brake pedal position switch test. 
  • Short to power on the BLU wire
  • Faulty brake pedal position switch
 
Set speed does not cancel when the clutch pedal is pressed 1.
2.
 
Check for PGM-FI and body DTCs.
Do the cruise control input test.
Test the clutch pedal position switch signal input. 
  • Short to ground on the LT BLU wire
  • Faulty clutch pedal position switch
 
Set speed does not cancel when the cruise control main switch is pressed 1.
2.

3. 
Check for PGM-FI and body DTCs.
Do the cruise control input test.
Test the cruise control main switch signal input.
Do the cruise control main switch test. 
Short to power on the LT GRN wire 
Set speed does not cancel when the cancel switch is pressed 1.
2.

3.

4. 
Check for PGM-FI and body DTCs.
Check the No. 14 (15 A) fuse in the under-hood fuse/relay box.
Do the cruise control input test.
Test the cruise control cancel switch signal input.
Do the cruise control set/decel, resume/accel, cancel switch test. 
Open circuit, loose or disconnected terminals: PNK, GRN/RED or GRY, LT GRN/BLK 

Symptom Diagnostic procedure Also check for 
Set speed will not resume when the resume/accel switch is pressed (with the cruise control main switch turned on and set speed temporarily canceled by pressing the brake pedal) 1.
2.

3.


4.


5. 
Check for PGM-FI and body DTCs.
Check the brake pedal position switch adjustment.
Check the No. 14 (15 A) fuse in the under-hood fuse/relay box, and No. 4 (10 A) fuse in the under-dash fuse/relay box.
Do the cruise control input test.
Test the cruise control resume/accel switch signal input.
Test the brake pedal position switch signal input.
Do the cruise control set/decel, resume/accel, cancel switch test. 
  • Faulty brake pedal position switch
  • Open circuit, loose or disconnected terminals: GRY or LT GRN/BLK
 
Set speed will not resume when the resume/accel switch is pressed (with the cruise control main switch turned on and set speed temporarily canceled by pressing the clutch pedal) 1.
2.

3.


4. 
Check for PGM-FI and body DTCs.
Check the clutch pedal position switch adjustment.
Do the cruise control input test.
Test the cruise control resume/accel switch signal input.
Test the clutch pedal position switch signal input.
Do the cruise control set/decel, resume/accel, cancel switch test. 
  • Faulty clutch pedal position switch
  • Open circuit, loose or disconnected terminals: GRY or LT GRN/BLK