P0135 Dodge Code - O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1
Quick Answer
Oxygen Sensors (O2S) or Heated Oxygen Sensors (HO2S) need to reach a minimum operating temperature of 750 degrees F to produce an accurate voltage signal. Common causes include Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground. 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 Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse, Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground.
- 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.
Code P0135 Dodge Description
In order to achieve the require temperature, a heater element is included inside the heated oxygen sensor. The ECM controls the heated oxygen sensor heater element based on signals from the engine coolant temperature and engine load. The ECM controls the heater element circuit by allowing current flow to ground.
The ECM monitors the voltage signal received through the heater element circuit and determines the state of the circuit by comparing the voltage detected with the factory specifications.
What are the Possible Causes of the DTC P0135 Dodge?
- Faulty Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit fuse
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit open shorted to ground
- Heated Oxygen Sensor (H2OS) Bank 1 Sensor 1 circuit poor electrical connection
- Faulty Engine Control Module (ECM)
How to Fix the DTC P0135 Dodge?
Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.
Code Tech Notes
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0135 Dodge code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.
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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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