why is my Ford Explorer's cruise control not working

Ford Explorer Fifth Generation (2011-2019)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

3 min read

564 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 battery before working on electrical systems.
•Ensure the vehicle is on a flat surface while testing cruise control.

Symptoms

•Cruise control indicator light not illuminated
•Inability to set or adjust speed using cruise control buttons
•Sudden disengagement of cruise control while driving
•Erratic speed fluctuations when cruise control is activated
•"Check Engine" light illuminated on the dashboard

Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner for any stored error codes related to the cruise control system.
2
Inspect the cruise control fuse for continuity and replace if blown.
3
Check the brake pedal switch for proper operation, ensuring it is not sticking or misaligned.
4
Verify the functionality of the cruise control module and its connections by examining wiring and connectors for damage or corrosion.
5
Test the vehicle's speed sensor for accurate readings, as a faulty sensor can disrupt 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 pliers
•Screwdriver
•Multimeter
•Socket set
•Torque wrench

Parts Required

•Cruise control fuse (if blown)
•Brake pedal switch (if faulty)
•Cruise control module (if damaged)

Related Faults

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Diagnostic Steps

1
Scan the vehicle's onboard computer using an OBD-II scanner for any stored error codes related to the cruise control system.
2
Inspect the cruise control fuse for continuity and replace if blown.
3
Check the brake pedal switch for proper operation, ensuring it is not sticking or misaligned.
4
Verify the functionality of the cruise control module and its connections by examining wiring and connectors for damage or corrosion.
5
Test the vehicle's speed sensor for accurate readings, as a faulty sensor can disrupt cruise control operation.

Solution

1. Preparation

Gather tools and parts required for the repair.
Disconnect the vehicle's battery to prevent electrical shorts.
Wait for 10 minutes to allow any residual electrical charge to dissipate.

2. Replace the Fuse

Tools Required: Fuse puller or pliers
Locate the fuse box, typically found under the dashboard or in the engine compartment.
Identify the cruise control fuse (refer to the owner's manual for the exact location).
Pull out the blown fuse and replace it with a new fuse of the same amperage.

3. Adjust or Replace Brake Pedal Switch

Tools Required: Screwdriver, multimeter
Inspect the brake pedal switch for proper alignment and operation.
If misaligned, adjust the switch until it properly engages when the brake pedal is pressed.
If faulty, disconnect the electrical connector and remove the switch from its mounting.
Install the new brake pedal switch by reversing the removal process.

4. Inspect and Repair Cruise Control Module

Tools Required: Socket set, torque wrench
Locate the cruise control module, typically mounted near the throttle body or under the dash.
Disconnect any electrical connectors and remove the module from its mounting.
Inspect for signs of damage or corrosion on the module and connectors; clean or repair as necessary.
Reinstall the module and connect all wiring securely.

5. Test and Reconnect Battery

Reconnect the vehicle's battery.
Start the engine and test the cruise control system to ensure proper functionality.