how to troubleshoot my Ford F-150 13th Generation (2015-2020) that won't remote start

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

Error Codes

1-2 hours

Time

medium

Difficulty

high

Severity

3 min read

526 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to troubleshoot and fix remote start issues in Ford F-150 13th Generation (2015-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shorts

Symptoms

•Remote start feature not activating
•No response from the remote when pressing the start button
•Engine cranks but does not start
•Security light flashing on the dashboard
•Check engine light illuminated

Diagnostic Steps

1
Check battery condition of the remote key fob
2
Scan for error codes using an OBD-II scanner
3
Inspect hood and door sensors for functionality
4
Verify key fob functionality by testing lock/unlock
5
Check for aftermarket modifications that may interfere
6
Inspect the vehicle's security system for malfunctions

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
•Screwdriver set
•New key fob battery

Parts Required

•Key fob battery
•Hood and door sensors (if faulty)

Related Faults

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Diagnostic Steps

1
Check battery condition of the remote key fob
2
Scan for error codes using an OBD-II scanner
3
Inspect hood and door sensors for functionality
4
Verify key fob functionality by testing lock/unlock
5
Check for aftermarket modifications that may interfere
6
Inspect the vehicle's security system for malfunctions

Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, screwdriver set, and a new key fob battery (if needed).
Disconnect the vehicle battery before starting any repairs to avoid electrical shorts.

2. Replace Key Fob Battery

Sub-steps:
1. Open the key fob using a flat screwdriver to gently pry it apart.
2. Replace the old battery with a new one, ensuring correct polarity.
3. Reassemble the key fob and test the remote functions.

3. Inspect and Replace Sensors

Sub-steps:
1. Locate the hood and door sensors; these are typically near the latch mechanisms.
2. Disconnect the wiring harness from the sensors.
3. Use a multimeter to test for continuity; replace any malfunctioning sensors.
4. Reconnect the wiring harness and test the remote start feature.

4. Clear Error Codes

Sub-steps:
1. Reconnect the vehicle battery.
2. Use the OBD-II scanner to clear any existing trouble codes.
3. Test the remote start again to check if the issue persists.

5. Verify Vehicle Security System

Sub-steps:
1. Ensure the vehicle is in a secure and safe environment.
2. Check for any security system indicators on the dashboard.
3. If the security system is active, follow the manufacturer’s instructions to reset it.