FAULTBASE
NEWSASKCars
© 2025 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
Home/Cars/Volkswagen/Passat/B8 (2015-2022)/how to troubleshoot power windows not working on Volkswagen Passat B8 (2015-2022)

how to troubleshoot power windows not working on Volkswagen Passat B8 (2015-2022)

Volkswagen Passat B8 (2015-2022)

Severity: mediumDifficulty: medium2-4 hours
3 min read
551 words

Problem Statement

Learn how to troubleshoot and fix power windows not working on Volkswagen Passat B8 (2015-2022). Step-by-step guide with diagnostic steps and solutions.

Component
Electrical
Repair Time
2-4 hours

Safety Warnings

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

Symptoms

  • •Power windows do not respond to switch activation
  • •Window control switch illuminates but does not operate windows
  • •No sound or movement from the window motor
  • •Other electrical components (e.g., door locks) may also be non-functional
  • •Window lock feature may be engaged, preventing operation

Diagnostic Steps

  1. 1Inspect the window lock switch to ensure it is not engaged.
  2. 2Use an OBD-II scanner to check for any relevant fault codes in the Body Control Module (BCM).
  3. 3Test the power window switch using a multimeter to check for continuity when pressed.
  4. 4Check the fuses related to the power windows in the fuse box.
  5. 5Inspect wiring and connectors at the door harness for signs of damage or corrosion.
  6. 6Test the power window motor directly by applying voltage to determine if the motor is functioning.

Solution

Solution

1. Preparation

  • Gather tools: OBD-II scanner, multimeter, socket set, flathead screwdriver, and a Phillips screwdriver.
  • Disconnect the vehicle's battery to avoid electrical shock.

2. Inspect and Replace Fuses

  • Locate the fuse box, usually found under the dashboard or in the engine compartment.
  • Identify the fuse for the power windows (refer to the owner's manual for the specific fuse location).
  • Remove the fuse using a fuse puller and inspect it for continuity. Replace it if it is blown.
  • Reconnect the battery and test the power windows.

3. Check Window Switch

  • Remove the door panel using a flathead screwdriver and Phillips screwdriver.
  • Disconnect the window switch from its connector.
  • Use a multimeter set to continuity mode to check the switch. If there is no continuity when pressed, replace the switch.
  • Reinstall the switch and door panel once confirmed functional.

4. Inspect Wiring and Connectors

  • With the door panel removed, visually inspect the wiring harness for any signs of wear, fraying, or corrosion.
  • Ensure that all connectors are firmly seated; reseat any loose connections.
  • If damage is found, repair or replace the wiring as necessary.

5. Test the Window Motor

  • Disconnect the window motor connector.
  • Using a multimeter, check for voltage at the motor connector while activating the window switch.
  • If voltage is present but the motor does not operate, replace the window motor.
  • If no voltage is detected, further investigate the wiring and BCM for issues.

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
  • Flathead screwdriver
  • Phillips screwdriver

Parts Required

  • Power window switch (if faulty)
  • Power window motor (if faulty)
  • Fuses (as needed)

Additional Information

Component

Electrical

Repair Time

2-4 hours

Difficulty

medium

Severity

medium

Tools

5 items

Parts

3 items

Related Faults

Discover similar issues

  1. how to diagnose an airbag light on my Volkswagen Passat B8 (2015-2022)

    Learn how to diagnose and fix the airbag light issue on your Volkswagen Passat B8 (2015-2022). Step-by-step guide with diagnostic procedures and repai...

    Component:Electrical
    Symptoms
    • •Airbag warning light illuminated on the dashboard
    • •Possible warning message displayed on the instrument cluster
    • +{count} more
  2. how to diagnose P0301 code on Volkswagen Passat B8 (2015-2022)

    P0301

    Learn how to diagnose and fix P0301 cylinder 1 misfire in Volkswagen Passat B8 (2015-2022). Step-by-step guide with diagnostic procedures and repair i...

    Component:Engine
    Symptoms
    • •Check engine light illuminated
    • •Rough idle or stalling
    • +{count} more
  3. why are my Volkswagen Passat B8 (2015-2022) power mirrors not adjusting

    Learn how to diagnose and fix power mirrors not adjusting in Volkswagen Passat B8 (2015-2022). Step-by-step guide with diagnostic procedures and repai...

    Component:Electrical
    Symptoms
    • •Power mirror adjustment switch is unresponsive
    • •Mirrors stuck in a fixed position
    • +{count} more
  4. why does my Volkswagen Passat make a clunking noise when turning

    Learn how to diagnose and fix clunking noise when turning in Volkswagen Passat. Step-by-step guide with diagnostic procedures and repair instructions.

    Component:Suspension
    Symptoms
    • •Clunking noise during turns
    • •Noise increases with sharper turns
    • +{count} more
  5. why does my Volkswagen Passat B8 (2015-2022) battery die when parked for a few days

    Learn how to diagnose and fix battery drain issues in Volkswagen Passat B8 (2015-2022). Step-by-step guide with symptoms, diagnostic steps, and soluti...

    Component:Electrical
    Symptoms
    • •Battery warning light illuminated on the dashboard
    • •Difficulty starting the engine after several days of inactivity
    • +{count} more
  6. why does my Volkswagen Passat B8 (2015-2022) have a rough idle at cold start

    Learn how to diagnose and fix rough idle issues during cold starts in Volkswagen Passat B8 (2015-2022). Step-by-step guide with diagnostic procedures ...

    Component:Engine
    Symptoms
    • •Check engine light illuminated
    • •Engine stalling upon initial start
    • +{count} more

Share this solution

Comments

Sign in to share your thoughts

Sign In

No comments yet

Be the first to share your thoughts

Back to Generation