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Home/Cars/Honda/Civic/9th Generation (2012-2015)/what does P0135 code indicate for Honda Civic 9th Generation (2012-2015)

what does P0135 code indicate for Honda Civic 9th Generation (2012-2015)

Honda Civic 9th Generation (2012-2015)

Severity: mediumDifficulty: mediumError Code: P01351-2 hours
3 min read
516 words

Problem Statement

Learn how to diagnose and fix P0135 oxygen sensor heater circuit issues in Honda Civic 2012-2015. Step-by-step guide with diagnostic procedures and repair instructions.

Error Code
P0135
Component
Engine
Repair Time
1-2 hours

Safety Warnings

  • ⚠Disconnect the battery before working on electrical systems.
  • ⚠Allow the engine to cool before opening any components.

Symptoms

  • •Check engine light illuminated
  • •Poor fuel economy
  • •Rough idle
  • •Engine stalling during acceleration
  • •Increased emissions
  • •Difficulty passing emissions tests

Diagnostic Steps

  1. 1Scan for error codes using an OBD-II scanner to confirm P0135 and check for additional codes.
  2. 2Inspect the wiring and connectors of the upstream oxygen sensor for damage or corrosion.
  3. 3Measure the voltage and resistance of the oxygen sensor heater circuit with a multimeter.
  4. 4Verify the power and ground supply to the oxygen sensor heater circuit.
  5. 5Check the fuse associated with the oxygen sensor heater circuit.
  6. 6Inspect the oxygen sensor itself for physical damage or contamination.

Solution

Solution

1. Preparation

  • Gather necessary tools and parts.
  • Disconnect the negative battery terminal to ensure safety during the repair.
  • Allow the engine to cool down before starting work.

2. Inspect and Repair Wiring

  • Tools Required: Wire strippers, electrical tape, multimeter
  • Inspect the wiring harness leading to the oxygen sensor for any signs of wear or damage.
  • If damaged, repair the wiring by cutting the affected section and reconnecting it using solder and heat-shrink tubing.
  • Ensure all connections are secure and insulated.

3. Replace Oxygen Sensor

  • Tools Required: O2 sensor socket, ratchet, torque wrench
  • Remove the upstream oxygen sensor using an O2 sensor socket.
  • Apply anti-seize compound to the threads of the new sensor to facilitate future removal.
  • Install the new oxygen sensor and torque it to the manufacturer's specification (typically around 30-40 lb-ft).

4. Reconnect Battery and Clear Codes

  • Reconnect the negative battery terminal.
  • Use the OBD-II scanner to clear the P0135 code and any other related codes.

5. Test Drive

  • Start the engine and let it idle for a few minutes to check for any immediate issues.
  • Take the vehicle for a test drive to ensure that the check engine light does not return and the engine runs smoothly.

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 and socket set
  • Torque wrench
  • Wire strippers
  • Electrical tape

Parts Required

  • New upstream oxygen sensor
  • Electrical connectors (if needed)

Additional Information

Error CodeP0135
Component

Engine

Repair Time

1-2 hours

Difficulty

medium

Severity

medium

Tools

7 items

Parts

2 items

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