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why does my Honda CR-V Fifth Generation (2017-2022) keep throwing P0135 code - Honda CR-V
Home/Cars/Honda/CR-V/Sixth Generation (2023-present)/why does my Honda CR-V Fifth Generation (2017-2022) keep throwing P0135 code

why does my Honda CR-V Fifth Generation (2017-2022) keep throwing P0135 code

Honda CR-V Sixth Generation (2023-present)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Error Code: P0135
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ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
489 words

Problem Statement

Learn how to diagnose and fix P0135 oxygen sensor issue in Honda CR-V Fifth Generation (2017-2022). Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0135
Affected Component
Exhaust System
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Allow the engine to cool before handling exhaust components.

Symptoms

  • •Check engine light illuminated
  • •Poor fuel economy
  • •Rough engine idle
  • •Increased emissions
  • •Engine stalling during low-speed maneuvers

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
  • •O2 sensor socket
  • •Ratchet
  • •Torque wrench

Parts Required

  • •Upstream oxygen sensor (Bank 1, Sensor 1)

Additional Information

Error Code
P0135
Affected Component
Exhaust System
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
1 item

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Solution
1. Preparation
  • Gather necessary tools and parts. Ensure safety gear is worn.
  • Disconnect the negative battery terminal to prevent electrical shock.
2. Inspect and Repair Wiring
  • Tools Required: Multimeter, electrical tape
  • Visually inspect the wiring and connectors for the oxygen sensor. Look for frays or corrosion.
  • If damage is found, repair the wiring using solder and electrical tape or replace the damaged section.
3. Replace the Oxygen Sensor
  • Tools Required: O2 sensor socket, ratchet, torque wrench
  • Locate the upstream oxygen sensor (Bank 1, Sensor 1) on the exhaust manifold.
  • Disconnect the sensor connector and use the O2 sensor socket to remove the sensor from the exhaust.
  • Apply anti-seize lubricant to the threads of the new sensor.
  • Install the new oxygen sensor and torque it to the manufacturer’s specification (usually around 30 lb-ft).
  • Reconnect the sensor connector.
4. Clear the Trouble Code
  • Tools Required: OBD-II scanner
  • Reconnect the negative battery terminal.
  • Use the OBD-II scanner to clear the P0135 trouble code from the vehicle’s computer.
5. Final Inspection
  • Start the engine and allow it to reach operating temperature.
  • Ensure the check engine light does not reappear after driving for a short distance.