Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSHONDA2020CIVIC SPORT, 4D HATCHBACK, STANDARD TRANSREPAIR AND DIAGNOSISACCESSORIES & EQUIPMENTCRUISE CONTROL SYSTEMSCRUISE CONTROL SYSTEM - TESTING & TROUBLESHOOTINGSYMPTOM TROUBLESHOOTING INDEXCRUISE CONTROL SYMPTOM TROUBLESHOOTING INDEX (CRUISE CONTROL)

2020 Honda Civic Sport, 4D Hatchback, Standard Trans

Cruise Control Symptom Troubleshooting Index (Cruise Control)

2020 Honda Civic Sport, 4D Hatchback, Standard TransSECTION Cruise Control Symptom Troubleshooting Index (Cruise Control)

Symptom	Diagnostic procedure	Also check for
Cruise control cannot be set	Check the PGM-FI system . Check the No. B21 (10 A) fuse in the under-dash fuse/relay box. Do the cruise control combination switch test . Do the cruise control input test .	Open circuit, loose or disconnected terminals: GRN, TAN, GRY, or LT GRN wire between the cruise control combination switch and the gauge control module Faulty gauge control module Faulty cable reel
Cruise control can be set, but the cruise main indicator does not come on	Do the gauge control module self-diagnostic function procedure . Do the cruise control input test . Test the cruise main indicator signal input. Check the PGM-FI system .	Faulty gauge control module
Cruise control can be set, but the cruise control indicator does not come on	Do the gauge control module self-diagnostic function procedure . Do the cruise control input test . Test the cruise control indicator signal input. Check the PGM-FI system .	Faulty gauge control module
Vehicle does not accelerate accordingly when the RES+ button is pressed	Do the cruise control combination switch test . Do the cruise control input test . Test the RES/+ switch signal input. Check the PGM-FI system .
Set speed does not cancel when the brake pedal is pressed	Do the brake pedal position switch test . Do the cruise control input test . Test the brake pedal position switch signal input. Check the PGM-FI system .	Faulty brake pedal position switch An open in the wire between the PCM and the brake pedal position switch A wire shorted to ground or power between the PCM and the brake pedal position switch

Symptom	Diagnostic procedure	Also check for
Set speed does not cancel (engine RPM stays high) when the clutch pedal is pressed for more than five seconds (M/T)	Do the cruise control input test . Test the CANCEL switch signal input. Test clutch pedal position switch A . Check for DTCs in the VSA system with the HDS .	Faulty clutch pedal position switch A An open in the wire between the PCM and clutch pedal position switch A A wire shorted to ground or power between the PCM and clutch pedal position switch A Faulty clutch pedal stroke sensor
Set speed does not cancel when the CRUISE button is pressed	Do the cruise control combination switch test . Do the cruise control input test . Test the CRUISE switch signal input. Check the PGM-FI system .
Set speed does not cancel when the CANCEL button is pressed	Do the cruise control combination switch test . Do the cruise control input test . Test the CANCEL switch signal input. Check the PGM-FI system .
Set speed does not resume when the RES+ button is pressed (with the CRUISE button pressed on, and set speed temporarily canceled by pressing the brake pedal)	Check the PGM-FI system . Do the cruise control combination switch test . Do the cruise control input test . Test the RES+ switch signal input.

RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.
• Brakes feel soft, pull hard to one side, or make grinding noises.
• The engine overheats, stalls repeatedly, or misfires under load.
• You are missing required tools, torque specs, or safe lifting equipment.
• You are not confident in the next step or safety outcome.