FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
How can I resolve issues with the engine starting at an angle in my 2020 Toyota Highlander? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/How can I resolve issues with the engine starting at an angle in my 2020 Toyota Highlander?

How can I resolve issues with the engine starting at an angle in my 2020 Toyota Highlander?

Toyota Highlander Fourth Generation (2020-present)

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

Problem Statement

Learn how to diagnose and repair engine starting issues in your 2020 Toyota Highlander with this comprehensive guide, including symptoms, diagnostic steps, and repair instructions.

Affected Component
engine starting system
Estimated Time
2-4 hours

Symptoms

  • •Engine Cranks but Doesn't Start
  • •Unusual Noises
  • •Dashboard Lights
  • •Battery Issues

Diagnostic Steps

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

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

  • •Flashlight
  • •Basic Hand Tools
  • •Multimeter
  • •Fuse Puller
  • •Jumper Wires
  • •Spark Plug Socket
  • •Compression Tester

Additional Information

Affected Component
engine starting system
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
7 items

Related Faults

Loading...

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

Resolving issues with the engine starting at an angle in your 2020 Toyota Highlander involves a systematic approach to diagnostic and repair. Below is a detailed guide to assist you through the process.

Step 1: Visual Inspection

  • Tools Required: Flashlight, Basic Hand Tools
  • Instructions:
    1. Open the hood and visually inspect the battery, cables, and connections.
    2. Look for any signs of corrosion on battery terminals or loose connections.
    3. Check the condition of the starter motor and ensure it is securely mounted.

Step 2: Battery Voltage Test

  • Tools Required: Multimeter
  • Instructions:
    1. Set your multimeter to measure DC voltage.
    2. Connect the positive lead to the positive terminal of the battery and the negative lead to the negative terminal.
    3. A healthy battery should read about 12.6 volts or higher. If it's lower than 12.4 volts, it may need charging or replacement.

Step 3: Starter Relay and Fuse Check

  • Tools Required: Multimeter, Fuse Puller
  • Instructions:
    1. Locate the fuse box (usually under the dashboard or in the engine compartment).
    2. Check the starter relay and associated fuses for continuity using the multimeter.
    3. Replace any blown fuses or faulty relays.

Step 4: Starter Motor Test

  • Tools Required: Multimeter, Jumper Wires
  • Instructions:
    1. Disconnect the starter motor connector.
    2. Use jumper wires to apply 12 volts directly to the starter motor.
    3. If the starter engages and the engine cranks, the starter is functional; if not, it may need replacement.

Step 5: Ignition System Check

  • Tools Required: Spark Plug Socket, Compression Tester
  • Instructions:
    1. Remove one spark plug and inspect it for wear and carbon buildup.
    2. Check for spark by grounding the spark plug and cranking the engine.
    3. If there is no spark, the ignition coil may need testing or replacing.
    4. Perform a compression test to ensure the engine has proper compression.
Repair Instructions

Based on the findings from the diagnostics, proceed with the appropriate repairs.

Repairing Battery Issues

  1. Battery Replacement: If the battery is weak or dead, replace it with a compatible battery (Group Size 24F).
  2. Cleaning Terminals: If corrosion is found, clean the battery terminals with a wire brush and apply terminal protectant.

Replacing Starter Motor

  1. Disconnect Battery: Always disconnect the negative terminal before working on the starter motor.
  2. Remove Starter: Unbolt the starter from the engine using a socket set. Disconnect the wiring harness.
  3. Install New Starter: Connect the new starter, ensuring all connections are secure. Reinstall the bolts.
  4. Reconnect Battery: Reattach the negative terminal and test the starter.

Addressing Ignition Issues

  1. Replace Spark Plugs: If spark plugs are worn, replace them with OEM spark plugs.
  2. Inspect Ignition Coils: If no spark is detected, replace any faulty ignition coils.
Conclusion

If the engine still exhibits starting issues after following these steps, it may require advanced diagnostics with specialized equipment to check the engine control module (ECM) or other electronic components. If you're not confident in performing these repairs, it’s advisable to seek the assistance of a certified automotive technician.