how to troubleshoot the cruise control not working on Ford F-150 13th Generation (2015-2020)

Ford F-150 13th Generation (2015-2020)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

4 min read

629 words

Problem Statement

Learn how to troubleshoot and fix cruise control issues in Ford F-150 (2015-2020). Step-by-step guide with 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.
•Allow the engine to cool before performing any work on the throttle body.

Symptoms

•Cruise control indicator light not illuminating
•Inability to set or adjust cruise control speed
•Cruise control disengaging unexpectedly
•Dashboard warning lights related to the braking system illuminated
•Erratic speed fluctuations while attempting to use cruise control

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any trouble codes related to the cruise control system.
2
Inspect the brake pedal switch for proper operation, ensuring it is not stuck or malfunctioning.
3
Check the cruise control fuse in the fuse box for any signs of blowing or damage.
4
Examine the throttle position sensor readings to ensure it is functioning correctly.
5
Test the cruise control switch on the steering wheel for proper electrical continuity.
6
Inspect the wiring harness for any signs of damage or corrosion that may affect the 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
•Multimeter
•Socket set
•Screwdriver set

Parts Required

•Brake pedal switch
•Cruise control fuse
•Cruise control switch (if defective)
•Throttle position sensor (if defective)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify any trouble codes related to the cruise control system.
2
Inspect the brake pedal switch for proper operation, ensuring it is not stuck or malfunctioning.
3
Check the cruise control fuse in the fuse box for any signs of blowing or damage.
4
Examine the throttle position sensor readings to ensure it is functioning correctly.
5
Test the cruise control switch on the steering wheel for proper electrical continuity.
6
Inspect the wiring harness for any signs of damage or corrosion that may affect the cruise control operation.

Solution

1. Preparation

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

2. Inspect and Replace Brake Pedal Switch

Locate the brake pedal switch:
- Remove the lower dashboard cover if necessary.
Test the brake pedal switch:
- Use a multimeter to check for continuity when the brake pedal is pressed.
Replace the brake pedal switch if faulty:
- Disconnect the wiring harness.
- Remove the switch from its mount.
- Install the new switch by reversing the removal steps.
- Reconnect the wiring harness.

3. Check and Replace Cruise Control Fuse

Locate the fuse box:
- Refer to the owner’s manual for the exact location.
Inspect the cruise control fuse:
- Pull the fuse and check for any visible damage.
Replace the fuse if blown:
- Install a new fuse of the same amperage.

4. Test the Cruise Control Switch

Remove the steering wheel cover:
- Use a socket set to remove screws and gently detach the cover.
Inspect the cruise control switch:
- Check for any physical damage or broken connections.
Replace the switch if defective:
- Disconnect the wiring harness.
- Remove the switch and install a new one.
- Reassemble the steering wheel cover.

5. Verify Throttle Position Sensor

Locate the throttle position sensor:
- It is usually mounted on the throttle body.
Test the sensor:
- Use a multimeter to verify the voltage output while moving the throttle.
Replace the sensor if it is out of specification:
- Disconnect the sensor.
- Remove screws securing the sensor and install the new one.
- Reconnect the wiring harness.