FAULTBASE
Error CodesASKCars
© 2026 FAULTBASE
All rights reserved.
v2.0.0 • Production
ContactPrivacyImpressum
what can cause the check engine light to come on in my Toyota RAV4 Fourth Generation (2013-2018) - Toyota RAV4
Home/Cars/Toyota/RAV4/Fourth Generation (2013-2018)/what can cause the check engine light to come on in my Toyota RAV4 Fourth Generation (2013-2018)

what can cause the check engine light to come on in my Toyota RAV4 Fourth Generation (2013-2018)

Toyota RAV4 Fourth Generation (2013-2018)

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

Problem Statement

Learn how to diagnose and fix the check engine light issue in your 2013-2018 Toyota RAV4. Step-by-step guide with symptoms, diagnostic steps, and repair instructions.

Affected Component
Engine
Estimated Time
1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on any electrical components.
  • •Allow the engine to cool before performing any repairs to avoid burns.

Symptoms

  • •Check engine light illuminated
  • •Rough engine idle
  • •Decreased fuel efficiency
  • •Engine stalling or hesitation during acceleration
  • •Unusual engine noises (knocking or pinging)
  • •Increased exhaust emissions or smell of fuel

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
  • •Socket set
  • •Spark plug socket
  • •Torque wrench
  • •Multimeter

Parts Required

  • •New spark plugs
  • •Oxygen sensors (if needed)
  • •Gas cap (if damaged)

Additional Information

Affected Component
Engine
Estimated Time
1-3 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
3 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
Solution
1. Preparation
  • Gather tools and parts needed for diagnosis and repair.
  • Ensure the vehicle is parked on a flat surface and the engine is cool.
  • Disconnect the negative battery terminal to prevent electrical short circuits.
2. Scan for Error Codes
  • Use an OBD-II scanner to retrieve any stored trouble codes.
  • Document the codes for reference and further investigation.
3. Address Common Issues

3.1. Gas Cap Inspection

  • Sub-steps:
    • Remove the gas cap and inspect for cracks or damage.
    • Clean the cap's sealing surface and reinstall it securely.

3.2. Spark Plug Replacement

  • Sub-steps:
    • Remove the engine cover (if applicable) using a socket set.
    • Unscrew the spark plug wires and remove the old spark plugs using a spark plug socket.
    • Install new spark plugs (ensure they are gapped correctly) and reconnect wires.

3.3. Oxygen Sensor Replacement

  • Sub-steps:
    • Locate the oxygen sensor (upstream or downstream) based on error code.
    • Disconnect the electrical connector and use a wrench to remove the sensor.
    • Install the new sensor, ensuring it is tightened to the manufacturer’s specifications.
4. Reconnect Battery and Clear Codes
  • Reconnect the negative battery terminal.
  • Use the OBD-II scanner to clear any stored trouble codes after repairs.