Cruise Control Symptom Troubleshooting

Symptom
Diagnostic procedure
Also check for
Cruise control cannot be set
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Check the No. 3 (10 A) fuse in the under-dash fuse/relay box.
Cruise control can be set, but the cruise main indicator does not come on
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Do the cruise control input test. Test the cruise control main switch signal input.
Faulty gauge control module
Cruise control can be set, but the cruise control indicator does not come on
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Do the cruise control input test. Test the cruise control indicator signal input.
Faulty gauge control module
Vehicle does not accelerate accordingly when the resume/accel switch is pressed
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Do the cruise control input test. Test the cruise control resume/accel switch signal input.
Open circuit, loose or disconnected terminals: LT GRN/BLK, YEL
Set speed does not cancel when the brake pedal is pressed
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Do the cruise control input test. Test the brake pedal position switch signal input.
  • Short to power on the BRN wire
  • Faulty brake pedal position switch
Set speed does not cancel (engine rpm stays high) when the clutch pedal is pressed
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Do the cruise control input test. Test the clutch pedal position switch B signal input.
  • Short in the LT BLU wire
  • Faulty clutch pedal position switch B
Set speed does not cancel when the cruise control main switch is pressed
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Do the cruise control input test. Test the cruise control main switch signal input.
Short to power on the PNK, LT GRN wire
Set speed does not cancel when the cancel switch is pressed
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Do the cruise control input test. Test the cruise control cancel switch signal input.
Open circuit, loose or disconnected terminals: YEL/RED, GRY or LT GRN/BLK, YEL
Set speed does 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)
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Do the cruise control input test. Test the cruise control resume/accel switch signal input. Test the brake pedal position switch signal input.
  • Faulty brake pedal position switch
  • Open circuit, loose or disconnected terminals: LT GRN/BLK, YEL
Set speed does 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)
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Do the cruise control input test. Test the cruise control resume/accel switch signal input. Test the clutch pedal position switch B signal input.
  • Faulty clutch pedal position switch B
  • Open circuit, loose or disconnected terminals: LT GRN/BLK, YEL
With the ignition switch in ON (II), and the lighting switch turned on, the cruise control combination switch illumination does not come on