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What are the symptoms of a failing starter motor in a 2022 Toyota Highlander? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/What are the symptoms of a failing starter motor in a 2022 Toyota Highlander?

What are the symptoms of a failing starter motor in a 2022 Toyota Highlander?

Toyota Highlander Fourth Generation (2020-present)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
747 words

Problem Statement

Learn about the symptoms of a failing starter motor in a 2022 Toyota Highlander and follow diagnostic steps to identify the issue.

Affected Component
starter motor
Estimated Time
2-4 hours

Symptoms

  • •Clicking Sound
  • •No Sound at All
  • •Intermittent Starting Issues
  • •Dim Lights
  • •Electrical Issues
  • •Smoke or Burning Smell

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

  • •Multimeter
  • •Battery Tester
  • •Wrench or Socket Set
  • •Test Light
  • •Jumper Wire
  • •Jumper Cables
  • •Socket Set
  • •Ratchet
  • •Torque Wrench

Additional Information

Affected Component
starter motor
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
9 items

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Back to Generation
Step 1: Verify Battery Condition
  • Tools Required: Multimeter, battery tester
  • Procedure:
    1. Turn off all electrical components (lights, radio).
    2. Use the multimeter to measure the battery voltage. A healthy battery should read 12.6 volts or higher.
    3. If the voltage is below 12.4 volts, charge the battery and retest.
Step 2: Check Battery Connections
  • Tools Required: Wrench or socket set
  • Procedure:
    1. Inspect the battery terminals for corrosion or loose connections.
    2. Clean any corrosion with a wire brush and ensure connections are tight.
Step 3: Test Starter Relay
  • Tools Required: Multimeter or test light
  • Procedure:
    1. Locate the starter relay in the fuse box (refer to the owner’s manual for exact location).
    2. Remove the relay and test for continuity or replace it with a known good relay to check if the issue persists.
Step 4: Bypass Starter Relay
  • Tools Required: Jumper wire
  • Procedure:
    1. With the ignition off, use a jumper wire to connect the terminals of the relay socket that corresponds to the starter circuit.
    2. Attempt to start the vehicle. If it starts, the relay or ignition switch may be faulty.
Step 5: Direct Starter Test
  • Tools Required: Jumper cables, wrench
  • Procedure:
    1. Disconnect the battery to prevent accidental shorting.
    2. Locate the starter motor (usually mounted on the lower side of the engine).
    3. Use jumper cables to connect the battery directly to the starter motor terminals. Connect the positive lead to the positive terminal and the negative lead to the starter casing.
    4. If the motor spins and the engine cranks, the starter is likely functional, and the issue lies elsewhere in the starting circuit.
Step 6: Inspect Wiring and Connectors
  • Tools Required: Visual inspection, multimeter
  • Procedure:
    1. Inspect all wiring and connectors leading to the starter for signs of damage, fraying, or corrosion.
    2. Use a multimeter to check for continuity in the wiring.
Repair Instructions

If you determine that the starter motor is faulty, follow these repair instructions:

Step 1: Remove the Old Starter Motor
  • Tools Required: Socket set, ratchet, torque wrench
  • Procedure:
    1. Disconnect the negative battery terminal to prevent electrical shock.
    2. Remove any components obstructing access to the starter (e.g., air intake duct, engine cover).
    3. Disconnect the electrical connectors from the starter motor.
    4. Remove the bolts securing the starter motor to the engine.
    5. Carefully remove the starter motor from its mounting location.
Step 2: Install the New Starter Motor
  • Tools Required: Same as above
  • Procedure:
    1. Position the new starter motor in place, aligning it with the mounting holes.
    2. Install and tighten the securing bolts to the manufacturer’s specified torque settings.
    3. Reconnect the electrical connectors to the starter motor.
    4. Reinstall any components that were removed for access.
Step 3: Reconnect Battery and Test
  • Procedure:
    1. Reconnect the negative battery terminal.
    2. Start the vehicle to ensure the new starter motor operates correctly.
    3. Check for any abnormal sounds or issues during startup.
Conclusion

Following these steps will help you diagnose and repair a failing starter motor in a 2022 Toyota Highlander. If issues persist, further investigation into the ignition system or ECM may be necessary, and consulting a professional technician is recommended.