Cruise Control Symptom Troubleshooting Index
Symptom
Diagnostic procedure
Also check for
Cruise control cannot be set
1.
Check the PGM-FI system.
2.
Check the No. B13 (15 A) fuse in the under-dash fuse/relay box.
3.
Do the cruise control combination switch test.
4.
Do the cruise control input test.
Open circuit, loose or disconnected terminals: BLU, LT BLU, LT GRN, or YEL wire between the cruise control combination switch and the gauge control module
Faulty gauge control module
Cruise control can be set, but the cruise main indicator does not come on
Faulty gauge control module
Cruise control can be set, but the cruise control indicator does not come on
Faulty gauge control module
Vehicle does not accelerate accordingly when the res/+ button is pressed
  
Set speed does not cancel when the brake pedal is pressed
1.
Do the brake pedal position switch test.
2.
Do the cruise control input test.
Test the brake pedal position switch signal input.
3.
Check the PGM-FI system.
Faulty brake pedal position switch
Set speed does not cancel (engine rpm stays high) when the clutch pedal is pressed for more than 5 seconds (M/T)
1.
Do the clutch pedal position switch B test.
2.
Do the cruise control input test.
Test the clutch pedal position switch B signal input.
3.
Check the PGM-FI system.
Short to ground in the BLU and BLK wire
Faulty clutch pedal position switch B
Set speed does not cancel when the cruise control main button is pressed
  
Set speed does not cancel when the cancel button is pressed
1.
Do the cruise control combination switch test.
2.
Do the cruise control input test.
Test the cruise control cancel switch signal input.
3.
Check the PGM-FI system.
  
Set speed does not resume when the res/+ button is pressed (with the cruise control main button pressed on, and set speed temporarily canceled by pressing the brake pedal)
  
Set speed does not resume when the res/+ button is pressed (with the cruise control main switch turned on, and set speed temporarily canceled by pressing the clutch pedal) (M/T)
  
Light switch turned on, the cruise control combination switch illumination does not come on
1.
Check the No. B25 (10 A) fuse in the under-dash fuse/relay box.
2.
Do the cruise control combination switch test.
Open circuit, loose or disconnected terminals: GRY or RED wires between the under-dash fuse/relay box and the gauge control module