how to troubleshoot my Volkswagen Golf MK7.5 (2020-Present) remote start not working

Volkswagen Golf MK7.5 (2020-Present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

539 words

Problem Statement

Learn how to troubleshoot and fix the remote start issue in your 2020 Volkswagen Golf MK7.5. Step-by-step guide with diagnostic procedures and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components to prevent short circuits or shocks.

Symptoms

•Remote start button does not respond when pressed
•No confirmation lights or sounds from the vehicle
•Engine does not crank or start
•Check engine light illuminated
•Vehicle may not lock/unlock with remote

Diagnostic Steps

1
Verify that the remote key fob has a functional battery.
2
Check if the vehicle's security system is engaged or if there are any warning lights on the dashboard.
3
Ensure that all doors, the hood, and the trunk are closed securely.
4
Scan the vehicle's onboard computer with an OBD-II scanner for any error codes related to the remote start system.
5
Test the remote start feature using the key fob from a close range to rule out distance issues.
6
Inspect the fuse related to the remote start feature for any signs of damage or failure.

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
•Fuse puller
•Flathead screwdriver

Parts Required

•Key fob battery
•Replacement fuse

Related Faults

Share this solution

Comments

No comments yet

Be the first to share your thoughts

Back to Generation

Diagnostic Steps

1
Verify that the remote key fob has a functional battery.
2
Check if the vehicle's security system is engaged or if there are any warning lights on the dashboard.
3
Ensure that all doors, the hood, and the trunk are closed securely.
4
Scan the vehicle's onboard computer with an OBD-II scanner for any error codes related to the remote start system.
5
Test the remote start feature using the key fob from a close range to rule out distance issues.
6
Inspect the fuse related to the remote start feature for any signs of damage or failure.

Solution

1. Preparation

Tools Required: OBD-II scanner, multimeter, fuse puller
Ensure the vehicle is parked in a well-ventilated area and is secure.
Disconnect the negative terminal of the battery for safety.

2. Inspect and Replace Key Fob Battery

Open the key fob using a small flathead screwdriver.
Remove the old battery and replace it with a new one, ensuring correct polarity.
Reassemble the key fob and test the remote start function.

3. Check and Replace Fuses

Locate the fuse box (refer to the owner’s manual for specific location).
Identify the fuse associated with the remote start system.
Use a fuse puller to remove the fuse and inspect it for continuity.
If blown, replace it with a new fuse of the same amperage (check the owner’s manual for specifications).
Reconnect the negative battery terminal.

4. Reset Vehicle Security System

Turn the ignition to the "ON" position without starting the engine.
Wait for approximately 10 seconds to allow the system to reset.
Turn the ignition off and then attempt to use the remote start feature again.

5. Reprogram the Key Fob (if necessary)

Insert the key into the ignition and turn to the "ON" position without starting the engine.
Press the remote start button on the key fob and hold for 5 seconds.
Turn the ignition off and remove the key.
Test the remote start function again.