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Engine-Codes – Dodge – P0135 Dodge

P0135 Dodge Code - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1

Quick Answer

The P0135 code for Dodge vehicles specifically relates to an O2 sensor heater circuit malfunction in Bank 1 Sensor 1. Common causes include Faulty O2 sensor, Blown fuse in the O2 sensor heater circuit, Wiring issues or corrosion in the O2 sensor 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 Dodge indicates O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1.
Common causes
Common causes include Faulty O2 sensor, Blown fuse in the O2 sensor heater circuit, Wiring issues or corrosion in the O2 sensor 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 06, 2024
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Code P0135 Dodge Description

The P0135 code for Dodge vehicles specifically relates to an O2 sensor heater circuit malfunction in Bank 1 Sensor 1. This means that the oxygen sensor located in the exhaust system before the catalytic converter on the side of the engine with cylinder 1 is not functioning properly. The O2 sensor plays a crucial role in monitoring the oxygen levels in the exhaust gases and sending this information to the engine control module (ECM) to adjust the air-fuel mixture for optimal combustion.

OBDII Code P0135 Dodge - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1
P0135 Dodge Code - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1

Common Causes of P0135 Dodge

  1. Faulty O2 sensor
  2. Blown fuse in the O2 sensor heater circuit
  3. Wiring issues or corrosion in the O2 sensor circuit
  4. ECM malfunction
  5. Exhaust leaks affecting O2 sensor operation

Symptoms of P0135 Dodge

  1. Check Engine Light illuminated on the dashboard
  2. Decreased fuel efficiency
  3. Rough idling or engine misfires
  4. Reduced engine performance
  5. Increased emissions

How to Fix P0135 Dodge

  1. Use an OBD-II scanner to confirm the P0135 code and identify the specific O2 sensor causing the issue.
  2. Inspect the O2 sensor heater circuit wiring for any damage or corrosion, and repair or replace as needed.
  3. Check the fuse related to the O2 sensor heater circuit and replace if blown.
  4. Test the O2 sensor's heating element for proper functionality and replace if necessary.
  5. Clear the code with the OBD-II scanner and test drive the vehicle to ensure the issue has been resolved.

Cost to Fix P0135 Dodge

The typical repair costs for resolving a P0135 code can range from $150 to $400, including parts and labor. However, 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. It's advisable to check local rates for a more precise estimate. Keep in mind that rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less.

What does this mean?

Tech Notes for P0135 Dodge

The code means that there is a problem with the heater element circuit of the heated oxygen sensor. The control module monitors how long it take the sensor to warm up and start sending an adequate signal. The code is triggered when the sensor is taking too long to warm up. Water getting inside the heated oxygen sensor connector can caused the heated oxygen sensor fuse to blow. Before replacing the sensor, check for the condition of the heated oxygen sensor fuse and connectors. If the sensor and connector are OK, replacing the O2 Sensor 1 usually takes care of the problem

When is the Code Detected?

Current amperage in the front heated oxygen sensor heater circuit is out of the normal range. (An improper voltage drop signal is sent to ECM through the front heated oxygen sensor heat

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0135 Dodge Code

1. What are the common symptoms of OBDII code P0135 in a Dodge vehicle?

- Common symptoms include poor fuel economy, rough idling, stalling, and the illumination of the Check Engine Light.

2. What does the O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1 refer to in a Dodge?

- This code specifically indicates an issue with the heating element circuit of the oxygen sensor located in the exhaust system before the catalytic converter on the side of the engine with cylinder 1.

3. What are the possible causes of OBDII code P0135 in a Dodge?

- Possible causes include a faulty oxygen sensor, damaged wiring or connectors in the heater circuit, a blown fuse, or a problem with the engine control module (ECM).

4. How can I diagnose the O2 sensor heater circuit malfunction in my Dodge?

- You can use a multimeter to check the resistance of the oxygen sensor heater circuit, inspect the wiring and connectors for any damage, and verify the fuse related to the heater circuit.

5. Can a bad O2 sensor cause other issues in a Dodge besides triggering the P0135 code?

- Yes, a malfunctioning O2 sensor can affect fuel mixture, emissions, and overall engine performance, leading to issues like poor acceleration and higher emissions.

6. Is it safe to drive my Dodge with an OBDII code P0135 present?

- It is generally safe to drive with this code, but it is recommended to address the issue promptly to prevent potential damage to the catalytic converter and ensure optimal engine performance.

7. How can I repair OBDII code P0135 in a Dodge?

- Repair options include replacing the faulty oxygen sensor, repairing damaged wiring or connectors, checking and replacing the fuse if needed, and resetting the Check Engine Light after the repair.

8. Can I reset the OBDII code P0135 in my Dodge without fixing the issue?

- While you can clear the code using an OBDII scanner, it will likely reappear if the underlying problem is not resolved, so it is best to address the root cause of the code.

9. How much does it typically cost to repair O2 sensor heater circuit malfunction in a Dodge?

- The cost can vary depending on the specific issue, but replacing an oxygen sensor can range from $100 to $300, while repairing wiring or connectors may cost less.

10. How long does it take to repair OBDII code P0135 in a Dodge?

- The repair time can vary based on the extent of the issue and your experience level, but it usually takes around 1-2 hours for a straightforward oxygen sensor replacement or wiring repair.

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