P1239 Nissan Code - Throttle Position Sensor Circuit Range/Performance
Quick Answer
Electric throttle control actuator consists of throttle control motor, throttle position sensor, etc. Common causes include Faulty Electric Throttle Control Actuator (TP sensor 1 and 2), Electric Throttle Control Actuator harness is open or shorted, Electric Throttle Control Actuator circuit poor electrical connection. Severity is High - diagnose this code as soon as possible. Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
- What it means
- P1239 Nissan indicates Throttle Position Sensor Circuit Range/Performance.
- Common causes
- Common causes include Faulty Electric Throttle Control Actuator (TP sensor 1 and 2), Electric Throttle Control Actuator harness is open or shorted, Electric Throttle Control Actuator circuit poor electrical connection.
- Severity
- High - diagnose this code as soon as possible.
- Can I drive?
- Driving is not recommended if the warning light is flashing, the engine runs poorly, or safety-related symptoms are present.
Code P1239 Nissan Description
The throttle position sensor has two sensors. These sensors are a kind of potentiometers which transform the throttle valve position into output voltage, and emit the voltage signal to the Engine Control Module (ECM). In addition, these sensors detect the opening and closing speed of the throttle valve and feed the voltage signals to the ECM. The ECM judges the current opening angle of the throttle valve from these signals and the ECM controls the throttle control motor to make the throttle valve opening angle properly in response to driving condition.
What are the Possible Causes of the DTC P1239 Nissan?
- Faulty Electric Throttle Control Actuator (TP sensor 1 and 2)
- Electric Throttle Control Actuator harness is open or shorted
- Electric Throttle Control Actuator circuit poor electrical connection
How to Fix the DTC P1239 Nissan?
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.
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1239 Nissan 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 P1239 Nissan Code
1. What are the common symptoms of OBDII code P1239 in a Nissan related to the throttle position sensor circuit?
- Common symptoms include poor acceleration, rough idling, stalling, and a noticeable decrease in fuel efficiency.
2. What are the possible causes of OBDII code P1239 in a Nissan indicating a throttle position sensor circuit range/performance issue?
- Possible causes may include a faulty throttle position sensor, damaged wiring or connectors in the sensor circuit, or issues with the electronic throttle control system.
3. How can a driver diagnose OBDII code P1239 in a Nissan related to the throttle position sensor circuit issue?
- A driver can use a diagnostic scanner to read the code and perform a visual inspection of the throttle position sensor and its wiring for any visible damage or corrosion.
4. What are some repair tips for resolving OBDII code P1239 in a Nissan indicating a throttle position sensor circuit range/performance problem?
- Repair tips may include replacing the throttle position sensor, repairing or replacing damaged wiring or connectors, and clearing the trouble code with a diagnostic scanner.
5. Is it safe to continue driving a Nissan with OBDII code P1239 indicating a throttle position sensor circuit issue?
- It is not recommended to continue driving the vehicle with this code as it can lead to performance issues and potential safety hazards. It is best to address the problem promptly.
6. Can a DIY enthusiast fix OBDII code P1239 in a Nissan related to the throttle position sensor circuit issue?
- Depending on their skill level, a DIY enthusiast may be able to replace the throttle position sensor or repair wiring issues. However, for more complex problems, it is advisable to seek professional help.
7. How much does it typically cost to repair OBDII code P1239 in a Nissan caused by a throttle position sensor circuit range/performance problem?
- The cost of repair can vary depending on the specific issue, but it may range from $100 to $300 for parts and labor if the throttle position sensor needs replacement.
8. Will resetting the ECU clear OBDII code P1239 in a Nissan related to the throttle position sensor circuit issue?
- Resetting the ECU may temporarily clear the trouble code, but if the underlying issue with the throttle position sensor circuit is not addressed, the code is likely to reappear.
9. How long does it typically take to repair OBDII code P1239 in a Nissan caused by a throttle position sensor circuit range/performance problem?
- The repair time can vary based on the extent of the issue and the availability of parts, but it may take anywhere from 1 to 3 hours to complete the repair.
10. Are there any preventive maintenance steps that can help avoid OBDII code P1239 in a Nissan related to the throttle position sensor circuit malfunction?
- Regularly inspecting and cleaning the throttle position sensor, as well as checking the wiring for any signs of wear or damage, can help prevent issues that trigger this trouble code.
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