why does my Honda Accord's cruise control not work?

Honda Accord 9th Generation (2013-2017)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

605 words

Problem Statement

Learn how to diagnose and fix cruise control issues in Honda Accord. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.

Symptoms

•Cruise control light on the dashboard not illuminated
•Inability to set or maintain a speed with the cruise control system
•Unresponsive cruise control buttons on the steering wheel
•Check engine light illuminated (potentially related)
•Sudden disengagement of cruise control while in use

Diagnostic Steps

1
Scan the vehicle's OBD-II system for any error codes that may indicate issues with the cruise control system.
2
Inspect the cruise control fuses and replace any blown fuses.
3
Check the brake switch operation; ensure the switch is functioning and is not stuck in the 'on' position.
4
Verify the throttle position sensor (TPS) is working correctly by checking its voltage output.
5
Inspect the wiring and connectors related to the cruise control system for any signs of damage or corrosion.
6
Test the cruise control module to ensure it is receiving the correct signals from the vehicle's systems.

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

✓Test the affected component to ensure it functions correctly
✓Check for any error codes or warning lights
✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

•Follow the manufacturer's recommended maintenance schedule
•Address warning signs early before they develop into major issues
•Use quality parts and fluids recommended for your vehicle
•Keep detailed records of all repairs and maintenance

Tools & Equipment Required

•OBD-II scanner
•Multimeter
•Socket set
•Torque wrench
•Wire stripper/crimper

Parts Required

•Brake switch (if faulty)
•Throttle position sensor (if faulty)
•Cruise control module (if faulty)

Related Faults

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Diagnostic Steps

1
Scan the vehicle's OBD-II system for any error codes that may indicate issues with the cruise control system.
2
Inspect the cruise control fuses and replace any blown fuses.
3
Check the brake switch operation; ensure the switch is functioning and is not stuck in the 'on' position.
4
Verify the throttle position sensor (TPS) is working correctly by checking its voltage output.
5
Inspect the wiring and connectors related to the cruise control system for any signs of damage or corrosion.
6
Test the cruise control module to ensure it is receiving the correct signals from the vehicle's systems.

Solution

1. Preparation

Gather necessary tools and parts. Ensure the vehicle is parked on a flat surface and the engine is off.
Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, wire stripper/crimper.
Safety Warnings: Disconnect the battery before working on electrical systems.

2. Inspect and Replace Fuses

Locate the fuse box (usually under the dashboard or in the engine compartment).
Identify the cruise control fuse using the fuse diagram.
Remove the fuse and visually inspect it; replace if blown.
Reconnect the battery and test the cruise control system.

3. Check Brake Switch

Locate the brake switch (usually near the brake pedal).
Disconnect the wiring connector from the brake switch.
Use a multimeter to test the switch; it should show continuity when the brake pedal is pressed.
If faulty, replace the brake switch and reconnect the wiring.

4. Test Throttle Position Sensor

Locate the throttle position sensor on the throttle body.
Using a multimeter, check the voltage output while moving the throttle plate.
The voltage should vary smoothly between approximately 0.5V and 4.5V.
If the readings are inconsistent, replace the throttle position sensor.

5. Inspect Wiring and Connectors

Visually inspect all wiring and connectors associated with the cruise control system.
Look for any frayed wires, loose connections, or corrosion.
Repair any damaged wiring or replace connectors as necessary.

6. Test and Replace Cruise Control Module

If previous steps do not resolve the issue, test the cruise control module.
Disconnect the module and check the voltage and ground connections.
If no issues found, replace the cruise control module if it is determined to be faulty.