my Ford Explorer's cruise control isn't working properly how to fix it

Ford Explorer Fifth Generation (2011-2019)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

526 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 components.
•Allow the engine to cool before accessing components in the engine bay.

Symptoms

•Cruise control light does not illuminate when activated
•Vehicle does not maintain set speed
•Cruise control disengages unexpectedly
•Inability to set cruise control at all
•Vehicle accelerates or decelerates erratically when cruise control is engaged

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for related issues.
2
Inspect the cruise control switch for physical damage or wear.
3
Check the brake pedal switch to ensure it is functioning and not improperly disengaging cruise control.
4
Inspect the throttle position sensor for proper operation and wiring integrity.
5
Examine the vehicle’s speed sensor to ensure it is sending accurate speed readings.
6
Verify all related fuses are intact and operational.

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
•Socket set
•Multimeter
•Screwdriver set
•Torque wrench

Parts Required

•Cruise control switch
•Brake pedal switch
•Throttle position sensor
•Vehicle speed sensor

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to check for related issues.
2
Inspect the cruise control switch for physical damage or wear.
3
Check the brake pedal switch to ensure it is functioning and not improperly disengaging cruise control.
4
Inspect the throttle position sensor for proper operation and wiring integrity.
5
Examine the vehicle’s speed sensor to ensure it is sending accurate speed readings.
6
Verify all related fuses are intact and operational.

Solution

1. Preparation

Gather required tools and parts.
Disconnect the vehicle's battery to ensure safety during repairs.

2. Inspect and Replace the Cruise Control Switch

Remove the steering wheel cover using a socket set.
Disconnect the cruise control switch connector and inspect for damage.
If damaged, replace with a new switch:
- Connect the new switch.
- Reassemble the steering wheel cover securely.

3. Check and Replace the Brake Pedal Switch

Locate the brake pedal switch, usually mounted above the brake pedal.
Disconnect the wiring harness and remove the switch.
Test the switch for continuity using a multimeter; replace if defective.
Reinstall the new switch and reconnect the wiring harness.

4. Inspect the Throttle Position Sensor (TPS)

Locate the TPS on the throttle body.
Disconnect the sensor connector.
Use a multimeter to check the resistance and operation of the TPS:
- Replace if readings are outside manufacturer specifications.
Reconnect the sensor.

5. Examine and Replace the Vehicle Speed Sensor (VSS)

Identify the location of the VSS, typically on the transmission.
Disconnect the sensor wiring harness and remove the sensor.
Inspect for physical damage, and test with a multimeter.
Replace if necessary and reinstall the new sensor, ensuring proper connection.