P0122 2003 Infiniti G35 Code - Throttle Position Sensor/Switch '1' Circuit Low Input
Quick Answer
The Throttle Pedal Position (TPP) responds to the accelerator pedal movement. Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor 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
- P0122 2003 Infiniti G35 indicates Throttle Position Sensor/Switch '1' Circuit Low Input.
- Common causes
- Common causes include Faulty throttle position sensor, Throttle position sensor harness is open or shorted, Throttle position sensor 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 P0122 2003 Infiniti G35 Description
Idle position of the throttle valve is determined by the ECM receiving the signal from the throttle position sensor. This sensor controls engine operation such as fuel cut. On the other hand, the Wide open and closed throttle position switch, which is built into the throttle position sensor unit, is not used for engine control.
What are the Possible Causes of the DTC P0122 2003 Infiniti G35?
- Faulty throttle position sensor.
- Throttle position sensor harness is open or shorted
- Throttle position sensor circuit poor electrical connection
- Faulty accelerator pedal position sensor
How to Fix the DTC P0122 2003 Infiniti G35?
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 P0122 2003 Infiniti G35 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 P0122 2003 Infiniti G35 Code
1. What are the common symptoms of OBDII code P0122 on a 2003 Infiniti G35?
- Common symptoms include poor acceleration, sluggish throttle response, stalling at idle, and the vehicle going into "limp mode" to prevent further damage.
2. What does the OBDII code P0122 mean for a 2003 Infiniti G35?
- OBDII code P0122 indicates that there is a low input signal from the throttle position sensor or switch '1' circuit in the vehicle's electronic control system.
3. What are the possible causes of OBDII code P0122 on a 2003 Infiniti G35?
- Possible causes include a faulty throttle position sensor, damaged wiring or connectors in the circuit, a dirty throttle body, or issues with the engine control module.
4. How can I diagnose the throttle position sensor on a 2003 Infiniti G35 to address code P0122?
- You can use a multimeter to test the throttle position sensor's voltage output at different throttle positions, check the sensor's wiring and connectors for damage, and inspect the throttle body for any obstructions or dirt buildup.
5. What are some recommended repair tips for fixing OBDII code P0122 on a 2003 Infiniti G35?
- Start by cleaning the throttle body to ensure proper operation, inspect and repair any damaged wiring or connectors in the throttle position sensor circuit, and replace the throttle position sensor if necessary.
6. Can I continue driving my 2003 Infiniti G35 with OBDII code P0122 active?
- It is not recommended to continue driving with code P0122 active, as it can lead to poor engine performance, reduced fuel efficiency, and potential safety hazards. It is best to address the issue promptly.
7. Is it possible to reset the OBDII code P0122 on a 2003 Infiniti G35 without fixing the underlying issue?
- While you can clear the code using an OBDII scanner, it will likely reappear if the root cause of the problem, such as a faulty throttle position sensor, is not addressed.
8. How much does it typically cost to repair OBDII code P0122 on a 2003 Infiniti G35?
- The cost of repairing OBDII code P0122 can vary depending on the exact cause of the issue. Replacing a throttle position sensor can range from $100 to $300, while addressing wiring or connector problems may be less expensive.
9. Can a DIY enthusiast fix OBDII code P0122 on a 2003 Infiniti G35?
- Yes, some aspects of addressing code P0122, such as cleaning the throttle body or checking for damaged wiring, can be done by a DIY enthusiast with the necessary tools and knowledge. However, replacing components like the throttle position sensor may require more advanced skills.
10. How long does it typically take to repair OBDII code P0122 on a 2003 Infiniti G35?
- The repair time for OBDII code P0122 can vary depending on the exact cause of the issue and the expertise of the technician. Simple fixes like cleaning the throttle body may take an hour or two, while replacing the throttle position sensor could take several hours.
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