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how to troubleshoot the power mirrors not working on my Toyota Corolla E170 (2013-2019)? - Toyota Corolla
Home/Cars/Toyota/Corolla/E170 (2013-2019)/how to troubleshoot the power mirrors not working on my Toyota Corolla E170 (2013-2019)?

how to troubleshoot the power mirrors not working on my Toyota Corolla E170 (2013-2019)?

Toyota Corolla E170 (2013-2019)

Error Codes
1-3 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
564 words

Problem Statement

Learn how to troubleshoot and fix power mirrors not working on Toyota Corolla E170 (2013-2019). Step-by-step guide with diagnostic steps and solutions.

Affected Component
Electrical
Estimated Time
1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Ensure the vehicle is off and in a safe position before starting repairs.

Symptoms

  • •Power mirror switch does not respond when pressed
  • •No movement in either side mirror
  • •Check engine light illuminated
  • •Inoperative mirror heater function
  • •No sound from the motors when attempting to adjust mirrors

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

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
  • •Wiring harness repair kit
  • •Trim tool

Parts Required

  • •Power mirror switch
  • •Fuse
  • •Mirror assembly

Additional Information

Affected Component
Electrical
Estimated Time
1-3 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
3 items

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Solution
1. Preparation
  • Gather tools: OBD-II scanner, multimeter, socket set, wiring harness repair kit.
  • Disconnect the negative battery terminal to prevent electrical shock.
  • Ensure the vehicle is parked on a flat surface and the ignition is off.
2. Inspect the Power Mirror Switch
  • Remove the trim panel surrounding the power mirror switch using a trim tool.
  • Disconnect the power mirror switch connector.
  • Visually inspect the switch for damage or corrosion.
  • If damaged, replace with a new power mirror switch.
3. Check the Fuse
  • Locate the fuse box under the dashboard or in the engine compartment.
  • Identify the fuse for the power mirrors (refer to the owner's manual for the exact location).
  • Remove the fuse and visually inspect it for continuity. Replace if blown.
4. Test Voltage at the Power Mirror Switch
  • Reconnect the power mirror switch while keeping the trim panel off.
  • Set the multimeter to DC voltage mode.
  • Turn on the ignition (do not start the engine) and measure the voltage at the power mirror switch connector.
  • If voltage is present but mirrors do not operate, the issue may be with the motors.
5. Inspect Wiring Harnesses
  • Follow the wiring harness from the power mirror switch to the mirrors.
  • Look for any signs of wear, fraying, or disconnection.
  • Repair or replace damaged wires using a wiring harness repair kit.
6. Test the Power Mirrors
  • If all previous steps are passed, isolate the mirror motors.
  • Apply direct voltage from a battery to the mirror motors to check functionality.
  • If the motors do not respond, replace the mirror assembly.