P0135 2018 Honda CR-V Code - Air/Fuel Ratio Sensor 1 Heater Circuit Malfunction
Quick Answer
The P0135 diagnostic trouble code (DTC) for a 2018 Honda CR-V indicates a malfunction in the Air/Fuel Ratio Sensor 1 Heater Circuit. Common causes include Failed Air/Fuel Ratio Sensor 1, Damaged wiring or connectors, Blown fuse related to the sensor heater circuit. Severity is Moderate - service should be scheduled soon. The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
- What it means
- P0135 2018 Honda CR-V indicates Air/Fuel Ratio Sensor 1 Heater Circuit Malfunction.
- Common causes
- Common causes include Failed Air/Fuel Ratio Sensor 1, Damaged wiring or connectors, Blown fuse related to the sensor heater circuit.
- Severity
- Moderate - service should be scheduled soon.
- Can I drive?
- The vehicle may still be drivable for short trips if it runs normally, but avoid hard driving and repair it soon.
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Code P0135 2018 Honda CR-V Description
The P0135 diagnostic trouble code (DTC) for a 2018 Honda CR-V indicates a malfunction in the Air/Fuel Ratio Sensor 1 Heater Circuit. This sensor is a crucial component of the vehicle's emissions system, responsible for monitoring the oxygen content in the exhaust gases and providing feedback to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion. The heater circuit in the sensor is designed to reach operating temperature quickly, ensuring accurate sensor readings even during cold starts.
Common Causes of P0135 2018 Honda CR-V
- Failed Air/Fuel Ratio Sensor 1.
- Damaged wiring or connectors.
- Blown fuse related to the sensor heater circuit.
- Corrosion or contamination affecting sensor operation.
- ECM software issue.
Symptoms of P0135 2018 Honda CR-V
- Check engine light illuminated on the dashboard.
- Decreased fuel efficiency.
- Rough idling or stalling.
- Failed emissions test.
- Engine misfires.
How to Fix P0135 2018 Honda CR-V
- Diagnose the issue by using a scan tool to retrieve the specific DTC and inspect the Air/Fuel Ratio Sensor 1 and its heater circuit.
- Test the sensor's resistance and voltage to determine if it is functioning correctly.
- Inspect wiring and connectors for damage or corrosion, repairing or replacing as necessary.
- Check and replace any blown fuses related to the sensor heater circuit.
- Clear the DTC and perform a test drive to ensure the issue has been resolved.
Cost to Fix P0135 2018 Honda CR-V
The typical repair costs for addressing a P0135 code on a 2018 Honda CR-V can range from $200 to $500, including parts and labor. It's important to note that the specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It is advisable to check local rates for a more accurate estimate before proceeding with the repair.
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Frequently Asked Questions about P0135 2018 Honda CR-V Code
What does the OBDII code P0135 mean on a 2018 Honda CR-V?
P0135 indicates a malfunction in the heater circuit of the Air/Fuel Ratio Sensor 1, which helps the sensor reach optimal operating temperature quickly.
What are the common symptoms of code P0135 on a 2018 Honda CR-V?
Symptoms may include the check engine light turning on, reduced fuel efficiency, increased emissions, and delayed sensor response.
What causes the P0135 code on a 2018 Honda CR-V?
Common causes include a faulty air/fuel ratio sensor, damaged wiring or connectors, a blown fuse, or issues with the engine control module (ECM).
Can I drive my 2018 Honda CR-V with a P0135 code?
While it’s possible to drive, it’s not recommended as it can lead to increased fuel consumption, higher emissions, and potential damage to the catalytic converter.
How do I diagnose the P0135 code on a 2018 Honda CR-V?
Check the sensor wiring and connectors for damage, test the sensor's resistance, inspect the heater circuit fuse, and verify proper voltage using a multimeter.
How much does it cost to fix a P0135 code on a 2018 Honda CR-V?
The repair cost depends on the issue. Replacing the air/fuel ratio sensor typically costs $200–$400, including parts and labor.
Can a dirty air filter cause P0135 on a 2018 Honda CR-V?
No, a dirty air filter does not cause this code. P0135 specifically relates to the heater circuit of the air/fuel ratio sensor.
How do I reset the P0135 code on my 2018 Honda CR-V?
After fixing the issue, you can reset the code using an OBDII scanner or by disconnecting the battery for a few minutes. However, the code may return if the underlying problem isn’t resolved.
What tools are needed to fix a P0135 code on a 2018 Honda CR-V?
Basic tools include a multimeter for testing, an OBDII scanner for diagnostics, and a socket set for replacing the sensor if necessary.
Can a bad catalytic converter trigger the P0135 code on a 2018 Honda CR-V?
No, a bad catalytic converter typically triggers different codes. P0135 specifically relates to the heater circuit in the air/fuel ratio sensor.
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