why is my Ford Explorer's cruise control not working

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

581 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

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Ensure the engine is off and cool before starting repairs.

Symptoms

•Cruise control indicator light not illuminating
•Inability to set or adjust cruise speed
•Sudden disengagement of cruise control while in use
•Check engine light illuminated
•Dashboard warning messages related to cruise control or throttle system

Diagnostic Steps

1
Scan the vehicle's OBD-II system for error codes that may indicate issues with the cruise control system.
2
Inspect the cruise control switch for physical damage or malfunction.
3
Check the brake pedal switch to ensure it is functioning correctly, as this can disengage cruise control.
4
Test the throttle position sensor (TPS) for proper operation using a multimeter.
5
Verify the fuses related to the cruise control system are not blown.
6
Inspect the wiring and connections between the cruise control module and the throttle actuator.

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
•Screwdrivers

Parts Required

•Cruise control switch (if defective)
•Brake pedal switch (if faulty)
•Throttle position sensor (if defective)
•Fuses (as necessary)

Related Faults

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Diagnostic Steps

1
Scan the vehicle's OBD-II system for error codes that may indicate issues with the cruise control system.
2
Inspect the cruise control switch for physical damage or malfunction.
3
Check the brake pedal switch to ensure it is functioning correctly, as this can disengage cruise control.
4
Test the throttle position sensor (TPS) for proper operation using a multimeter.
5
Verify the fuses related to the cruise control system are not blown.
6
Inspect the wiring and connections between the cruise control module and the throttle actuator.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a level surface and the engine is off.
Disconnect the battery to avoid electrical shorts.

2. Inspect and Test Cruise Control Switch

Remove the steering wheel cover using a socket set.
Disconnect the cruise control switch connector.
Use a multimeter to test for continuity in the switch.
- If the switch is defective, replace it with a new one.
Reconnect the switch and reassemble the steering wheel cover.

3. Check Brake Pedal Switch

Locate the brake pedal switch above the brake pedal.
Inspect for any misalignment or damage.
Using a multimeter, test for continuity when the brake pedal is pressed.
- If faulty, adjust or replace the switch as necessary.

4. Test Throttle Position Sensor

Locate the TPS on the throttle body.
Disconnect the TPS connector.
Use a multimeter to measure the voltage output while slowly moving the throttle plate.
- If the readings are outside the manufacturer's specifications, replace the TPS.

5. Inspect Fuses

Locate the fuse box, usually found under the dashboard or in the engine compartment.
Identify the fuse related to the cruise control system.
Remove the fuse and inspect it for continuity.
- Replace any blown fuses with the same type (refer to owner's manual for specifications).

6. Check Wiring and Connections

Visually inspect the wiring harness for signs of wear, fraying, or corrosion.
Ensure all connectors are firmly seated and free of dirt or corrosion.
Repair or replace any damaged wiring or connectors.