why does my Ford Explorer's cruise control not work

Ford Explorer Sixth Generation (2020-present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

549 words

Problem Statement

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

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow the engine to cool before inspecting components near the engine.

Symptoms

•Cruise control indicator light is not illuminated
•Inability to set or maintain a speed
•Unresponsive cruise control buttons on the steering wheel
•Check engine light illuminated (potentially related)
•Erratic acceleration or deceleration while attempting to engage cruise control

Diagnostic Steps

1
Scan the vehicle's onboard computer for error codes using an OBD-II scanner.
2
Inspect the cruise control fuse to ensure it is not blown.
3
Check the brake light switch to confirm it is functioning correctly.
4
Examine the cruise control module for any visible damage or disconnections.
5
Test the cruise control buttons on the steering wheel for proper functionality.
6
Verify the throttle position sensor is working correctly as it can affect cruise control operation.

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
•Fuse puller or needle-nose pliers
•Screwdriver
•Socket set
•Multimeter

Parts Required

•Cruise control fuse (if blown)
•Brake light switch (if faulty)
•Cruise control module (if damaged)
•Throttle position sensor (if faulty)

Related Faults

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Diagnostic Steps

1
Scan the vehicle's onboard computer for error codes using an OBD-II scanner.
2
Inspect the cruise control fuse to ensure it is not blown.
3
Check the brake light switch to confirm it is functioning correctly.
4
Examine the cruise control module for any visible damage or disconnections.
5
Test the cruise control buttons on the steering wheel for proper functionality.
6
Verify the throttle position sensor is working correctly as it can affect cruise control operation.

Solution

1. Preparation

Gather necessary tools and parts before starting.
Ensure the vehicle is parked on a level surface and the engine is turned off.

2. Inspect and Replace Fuse

Tools Required: Fuse puller or needle-nose pliers.
Locate the fuse box, usually found under the dashboard or in the engine compartment.
Use the fuse puller to remove the cruise control fuse.
Inspect the fuse for damage; replace with a new fuse of the same amperage if necessary.

3. Check and Adjust Brake Light Switch

Tools Required: Screwdriver.
Locate the brake light switch, usually mounted above the brake pedal.
Ensure the switch is properly aligned and making contact when the brake pedal is pressed.
If misaligned, adjust the switch position accordingly; if faulty, replace the switch.

4. Inspect Cruise Control Module

Tools Required: Socket set.
Locate the cruise control module, typically found near the engine or behind the dashboard.
Disconnect the module's electrical connector and visually inspect for corrosion or damage.
If any damage is found, replace the cruise control module.

5. Test Throttle Position Sensor

Tools Required: Multimeter.
Locate the throttle position sensor on the throttle body.
Disconnect the sensor's electrical connector, then use a multimeter to test the voltage output as per the specifications in the repair manual.
If the readings are out of range, replace the throttle position sensor.