P0135 2001 Ford F150 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 2001 Ford F150 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 2001 Ford F150 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 2001 Ford F150?
- 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 2001 Ford F150?
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 2001 Ford F150 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 2001 Ford F150 Code
1. What are the common symptoms of OBDII code P0135 on a 2001 Ford F150?
The common symptoms of code P0135 include poor fuel economy, rough idling, and an illuminated Check Engine light on the dashboard.
2. What does the O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1 mean in relation to code P0135 on a 2001 Ford F150?
This means that the heater circuit in the oxygen (O2) sensor located in Bank 1 Sensor 1 is not functioning properly.
3. What are the possible causes of the O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1 on a 2001 Ford F150?
Possible causes of this issue include a faulty O2 sensor, damaged wiring or connectors, a blown fuse, or a problem with the vehicle's PCM (powertrain control module).
4. How can I diagnose and repair OBDII code P0135 on my 2001 Ford F150?
To diagnose code P0135, you can use a scan tool to check for the specific fault code. Repair involves inspecting the O2 sensor and its wiring, replacing any damaged components, and clearing the code with the scan tool.
5. Can I continue driving my 2001 Ford F150 with OBDII code P0135?
It is not recommended to ignore code P0135 and continue driving as it can lead to decreased fuel efficiency and potential damage to the catalytic converter over time.
6. Is it possible to reset the OBDII code P0135 on a 2001 Ford F150 by disconnecting the battery?
While disconnecting the battery may temporarily clear the code, it is not a permanent solution. The underlying issue causing the code will still need to be addressed.
7. How much does it typically cost to repair O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1 on a 2001 Ford F150?
The cost of repairing code P0135 can vary depending on the cause of the issue and whether you choose to do the repair yourself or take it to a mechanic. Costs can range from $100 to $300 or more.
8. Can a DIY enthusiast with basic automotive knowledge fix OBDII code P0135 on a 2001 Ford F150?
Yes, a DIY enthusiast with basic automotive knowledge can attempt to fix code P0135 by following repair guides, using a multimeter to check components, and replacing the faulty parts.
9. How long does it take to repair O2 Sensor Heater Circuit Malfunction Bank 1 Sensor 1 on a 2001 Ford F150?
The repair time for code P0135 can range from 30 minutes to a few hours, depending on the complexity of the issue and the experience level of the person performing the repair.
10. Can a faulty O2 sensor cause other issues besides code P0135 on a 2001 Ford F150?
Yes, a faulty O2 sensor can lead to other issues such as poor engine performance, increased emissions, and potential damage to the catalytic converter if left unresolved.
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