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how to fix the P0135 code on my Honda Civic 11th Generation (2022-Present) - Honda Accord
Home/Cars/Honda/Accord/11th Gen (2023-Present)/how to fix the P0135 code on my Honda Civic 11th Generation (2022-Present)

how to fix the P0135 code on my Honda Civic 11th Generation (2022-Present)

Honda Accord 11th Gen (2023-Present)

Error Codes
1-2 hours
Time
medium
Difficulty
medium
Severity
Error Code: P0135
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
499 words

Problem Statement

Learn how to diagnose and fix P0135 oxygen sensor heater circuit issue in Honda Civic 2022. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0135
Affected Component
Exhaust System
Estimated Time
1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect battery before working on electrical components.
  • •Allow engine to cool before opening any engine compartments or exhaust systems.

Symptoms

  • •Check engine light illuminated
  • •Poor fuel economy
  • •Rough idle or engine stalling
  • •Increased emissions
  • •Failure to pass emissions testing

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
  • •Oxygen sensor socket
  • •Socket wrench set
  • •Torque wrench
  • •Wire brush or contact cleaner

Parts Required

  • •New upstream oxygen sensor
  • •Replacement fuse (if necessary)

Additional Information

Error Code
P0135
Affected Component
Exhaust System
Estimated Time
1-2 hours
Difficulty
medium
Severity
medium
Tools Required
6 items
Parts Required
2 items

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Solution
1. Preparation
  • Gather necessary tools and parts for the repair.
  • Disconnect the vehicle battery to prevent electrical shock.
  • Allow the engine to cool before proceeding with repairs.
2. Inspect Wiring and Connectors
  • Remove the plastic cover or protective sheathing over the oxygen sensor wiring.
  • Check for frayed wires, broken connectors, or corrosion.
  • Clean any corrosion using a wire brush or contact cleaner.
3. Replace Oxygen Sensor
  • Locate the upstream oxygen sensor (typically found in the exhaust manifold).
  • Use a socket wrench and oxygen sensor socket to remove the faulty sensor.
  • Apply anti-seize compound to the threads of the new oxygen sensor.
  • Install the new oxygen sensor and tighten it to the manufacturer’s specifications (usually around 30 Nm or 22 lb-ft).
4. Check and Replace Fuse
  • Locate the fuse box and identify the fuse for the oxygen sensor heater circuit.
  • Inspect the fuse and replace it if it is blown.
  • Ensure the new fuse matches the required amperage.
5. Reconnect Battery and Clear Codes
  • Reconnect the battery terminal securely.
  • Use the OBD-II scanner to clear the P0135 code from the ECU.