P0221 Infiniti Code - Throttle/Pedal Position Sensor Circuit Range/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 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
- P0221 Infiniti indicates Throttle/Pedal Position Sensor Circuit Range/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 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 P0221 Infiniti Description
The throttle position sensor has the 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 P0221 Infiniti?
- Faulty Electric Throttle Control Actuator
- Electric Throttle Control Actuator harness is open or shorted
- Electric Throttle Control Actuator poor electrical connection
How to Fix the DTC P0221 Infiniti?
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 P0221 Infiniti 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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Information for Specific Infiniti Models
- P0221 2003 Infiniti G35 — Throttle/Pedal Position Sensor Circuit Range/Performance Problem
Frequently Asked Questions about P0221 Infiniti Code
What does the OBDII code P0221 mean on an Infiniti?
Code P0221 indicates a problem with the Throttle/Pedal Position Sensor circuit, specifically that its signal is out of range or performing inconsistently.
What are the common symptoms of P0221 on an Infiniti?
Symptoms may include poor acceleration, engine hesitation, reduced power, erratic idling, or the vehicle going into limp mode.
What causes the P0221 code to appear on an Infiniti?
Causes can include a faulty throttle position sensor, damaged wiring or connectors, a malfunctioning accelerator pedal position sensor, or throttle body issues.
Can driving with code P0221 damage my Infiniti?
Driving with P0221 may cause unsafe driving conditions due to erratic throttle response and could lead to further engine or transmission issues if ignored.
How do I diagnose P0221 on my Infiniti?
Start by scanning for stored trouble codes, visually inspecting the throttle position sensor and wiring, and testing the sensor's voltage readings with a multimeter.
How do I fix code P0221 on an Infiniti?
Repairs may involve replacing the faulty throttle position sensor, repairing damaged wiring or connectors, cleaning the throttle body, or recalibrating the system with a scan tool.
Is the P0221 code specific to throttle or pedal position issues?
Yes, P0221 is directly related to the throttle or pedal position sensor system, which helps regulate engine power based on driver input.
Do I need to replace the throttle body if I get a P0221 code?
Not necessarily. The issue may be limited to the throttle position sensor or wiring. However, if the throttle body is dirty or malfunctioning, cleaning or replacement may be required.
Can a failing accelerator pedal position sensor trigger P0221 on an Infiniti?
Yes, a malfunctioning accelerator pedal position sensor can cause the P0221 code, as it’s part of the throttle control system.
Will clearing the P0221 code fix the issue permanently?
Clearing the code may temporarily remove the warning, but it won’t fix the underlying problem causing the code to appear. Proper diagnosis and repair are essential.
Discuss the causes and fixes for P0221 Infiniti OBDII Code
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