P1122 2003 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 2003 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 2003 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 2003 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 2003 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 2003 Nissan Altima:
2003 Nissan Altima Factory Service Bulletin OBDII Code P1122
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P1122 2003 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 2003 Nissan Altima Sedan Code
1. What does the OBDII code P1122 mean on a 2003 Nissan Altima Sedan?
P1122 indicates a problem with the Electric Throttle Control system, specifically a performance issue or malfunction detected by the engine control module (ECM).
2. What are the common symptoms of P1122 in a 2003 Nissan Altima?
Symptoms may include reduced engine power, poor acceleration, a stuck throttle, engine stalling, or the check engine light turning on.
3. What causes the P1122 code in a 2003 Nissan Altima?
Common causes include a faulty throttle position sensor (TPS), a malfunctioning throttle body, wiring or connector issues, or a problem with the ECM.
4. Can a dirty throttle body cause the P1122 code?
Yes, a dirty or clogged throttle body can disrupt airflow and cause the Electric Throttle Control system to malfunction, triggering the P1122 code.
5. How can I diagnose the P1122 code on my 2003 Nissan Altima?
Start by inspecting the throttle body, throttle position sensor, and related wiring for damage or dirt. Use a scan tool to monitor the TPS voltage and check for irregular readings.
6. Can I drive my 2003 Nissan Altima with the P1122 code?
While the car may still be drivable, it could experience reduced performance or stalling. It is best to address the issue promptly to avoid further damage.
7. How do I fix the P1122 code on a 2003 Nissan Altima?
Repairs may involve cleaning or replacing the throttle body, replacing the TPS, repairing damaged wiring, or resetting the ECM after repairs.
8. Does the P1122 code always mean the throttle body needs replacement?
Not always. The issue could be caused by a faulty TPS, wiring problem, or a simple need for throttle body cleaning.
9. How much does it cost to fix the P1122 code on a 2003 Nissan Altima?
The cost depends on the specific issue. Cleaning the throttle body may cost $100–$200, while replacing the throttle body or TPS can range from $300–$700.
10. Can a faulty ECM cause the P1122 code on a 2003 Nissan Altima?
Yes, though it is less common. If all other components and wiring are in good condition, the ECM may need to be inspected or reprogrammed.
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