P1122 2004 Nissan Altima Sedan Code - Electric Throttle Control Performance Problem
Quick Answer
Electric Throttle Control Actuator consists of throttle control motor, Throttle Position Sensor (TPS), etc. Common causes include Faulty Electric Throttle Control Actuator, 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
- P1122 2004 Nissan Altima Sedan indicates Electric Throttle Control Performance Problem.
- Common causes
- Common causes include Faulty Electric Throttle Control Actuator, 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 P1122 2004 Nissan Altima Sedan Description
The throttle position sensor detects the throttle valve position, and the opening and closing speed of the throttle valve and feeds 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 P1122 2004 Nissan Altima Sedan?
- Faulty Electric Throttle Control Actuator
- Electric Throttle Control Actuator harness is open or shorted
- Electric Throttle Control Actuator circuit poor electrical connection
How to Fix the DTC P1122 2004 Nissan Altima Sedan?
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
There is a factory service bulletin for the 2004 Nissan Altima:
2004 Nissan Altima Factory Service Bulletin OBDII Code P1122
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1122 2004 Nissan Altima Sedan 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 P1122 2004 Nissan Altima Sedan Code
1. What does the OBDII code P1122 mean on a 2004 Nissan Altima Sedan?
P1122 indicates an "Electric Throttle Control Performance Problem," meaning there is an issue with the electronic throttle control system that manages engine air intake.
2. What are the common symptoms of the P1122 code?
Symptoms include reduced engine power, poor acceleration, the throttle not responding properly, the engine stalling, or the check engine light being illuminated.
3. What causes the P1122 code to appear?
Common causes include a faulty throttle position sensor (TPS), a malfunctioning throttle body, damaged wiring or connectors, or issues with the engine control module (ECM).
4. How can I diagnose the P1122 code?
Start by scanning the vehicle with an OBDII scanner, inspect the throttle body and TPS for damage or dirt, check wiring and connectors for corrosion or breaks, and test the TPS for proper resistance and voltage.
5. Can cleaning the throttle body fix the P1122 code?
Yes, if the issue is caused by carbon buildup or dirt on the throttle body, cleaning it may resolve the problem. However, further diagnosis may be needed if the code persists.
6. Is the P1122 code safe to drive with?
Driving with this code can result in reduced engine performance and safety risks due to poor throttle response. It’s best to address the issue as soon as possible.
7. How much does it typically cost to fix the P1122 code?
Repair costs can range from $100 to $500, depending on whether the issue is a simple wiring fix, throttle body cleaning, or the replacement of the throttle body or TPS.
8. Can a bad accelerator pedal position sensor cause the P1122 code?
Yes, a faulty accelerator pedal position sensor can cause throttle control issues and trigger the P1122 code.
9. Does the P1122 code require reprogramming the ECM?
Reprogramming the ECM is not usually required unless the ECM itself is faulty. However, a throttle body relearn procedure may be necessary after certain repairs.
10. Will disconnecting the battery clear the P1122 code?
Disconnecting the battery may temporarily clear the code, but if the underlying issue is not resolved, the code will likely return. Proper diagnosis and repair are necessary.
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