Engine-CodesInfiniti – P0222 2003 Infiniti G35

P0222 2003 Infiniti G35 Code - Throttle Position Sensor/Switch 2 Circuit Low Input

Quick Answer

The P0222 diagnostic trouble code (DTC) for a 2003 Infiniti G35 indicates a problem with the Throttle Position Sensor/Switch 2 Circuit, specifically a low input signal. Common causes include A faulty throttle position sensor (TPS), Damaged or corroded wiring/connectors in the TPS circuit, Issues with the electronic control module (ECM). 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
P0222 2003 Infiniti G35 indicates Throttle Position Sensor/Switch 2 Circuit Low Input.
Common causes
Common causes include A faulty throttle position sensor (TPS), Damaged or corroded wiring/connectors in the TPS circuit, Issues with the electronic control module (ECM).
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.
Table of contents Created and updated by William Orellana on Sep 15, 2024
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Code P0222 2003 Infiniti G35 Description

The P0222 diagnostic trouble code (DTC) for a 2003 Infiniti G35 indicates a problem with the Throttle Position Sensor/Switch 2 Circuit, specifically a low input signal. The throttle position sensor (TPS) is a crucial component of the vehicle's electronic throttle control system, responsible for monitoring the position of the throttle pedal and sending this information to the engine control module (ECM). The ECM uses this data to determine the appropriate air-fuel mixture for optimal engine performance.

OBDII Code P0222 2003 Infiniti G35 - Throttle Position Sensor/Switch 2 Circuit Low Input
P0222 2003 Infiniti G35 Code - Throttle Position Sensor/Switch 2 Circuit Low Input

Common Causes of P0222 2003 Infiniti G35

  1. A faulty throttle position sensor (TPS).
  2. Damaged or corroded wiring/connectors in the TPS circuit.
  3. Issues with the electronic control module (ECM).
  4. Incorrect TPS adjustment or calibration.
  5. Environmental factors such as moisture or debris affecting the TPS operation.

Symptoms of P0222 2003 Infiniti G35

  1. Hesitation or lack of response when pressing the accelerator pedal.
  2. Rough idling or stalling while the vehicle is at a standstill.
  3. Poor fuel efficiency and increased emissions.
  4. Engine misfires or difficulty in maintaining a consistent speed.
  5. Illumination of the Check Engine Light on the dashboard.

How to Fix P0222 2003 Infiniti G35

  1. Begin by conducting a thorough inspection of the TPS and its wiring/connectors for any visible damage or corrosion.
  2. Use a multimeter to test the TPS for proper voltage output and resistance values according to the manufacturer's specifications.
  3. If the TPS is found to be faulty, replace it with a new one and ensure proper calibration.
  4. Clear the DTC using an OBD-II scanner and perform a test drive to confirm that the issue has been resolved.
  5. If the problem persists, further diagnostics may be required to check for ECM issues or other underlying causes.

Cost to Fix P0222 2003 Infiniti G35

The typical repair costs for addressing a P0222 code on a 2003 Infiniti G35 can range from $100 to $300, including parts and labor. However, it's important to note that the specific diagnosis time and labor rates at auto repair shops can vary significantly based on factors such as location, vehicle make and model, and engine type. Rates in metropolitan areas or at dealerships may be higher, while independent shops often charge less. It is advisable to obtain quotes from multiple sources to get a more accurate estimate for the repair.

When is the Code Detected?

An excessively low voltage from the Throttle Position Sensor (TPS) 2 is sent to Engine Control Module (ECM).

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About the author: William Orellana is a Master Mechanic and Mechanical Engineer with over 30 years of experience diagnosing and repairing vehicles. Learn more about his background.

Frequently Asked Questions about P0222 2003 Infiniti G35 Code

1. What does OBDII code P0222 mean for a 2003 Infiniti G35?

P0222 indicates that the Throttle Position Sensor (TPS) 2 circuit is reporting a voltage that is lower than the expected range.

2. What are the symptoms of code P0222 in a 2003 Infiniti G35?

Common symptoms include poor acceleration, hesitation, stalling, reduced engine performance, and the Check Engine Light turning on.

3. What causes the P0222 code to appear in a 2003 Infiniti G35?

Possible causes include a faulty Throttle Position Sensor, damaged or corroded wiring, a malfunctioning throttle body, or issues with the engine control module (ECM).

4. Can I drive my 2003 Infiniti G35 with code P0222?

Driving with this code is not recommended as it can lead to unsafe driving conditions due to reduced throttle response and potential stalling.

5. How do I diagnose the P0222 code on a 2003 Infiniti G35?

Diagnose the code by using an OBDII scanner to confirm the fault, inspecting the TPS and its wiring for damage, and verifying voltage and ground signals at the TPS connector.

6. How do I fix the P0222 code on my 2003 Infiniti G35?

Repairs may involve replacing the Throttle Position Sensor, repairing or replacing damaged wiring, cleaning the throttle body, or reprogramming the ECM if necessary.

7. How much does it cost to repair a P0222 code on a 2003 Infiniti G35?

Repair costs vary but typically range from $100 to $300 for parts and labor, depending on whether the TPS or wiring requires replacement.

8. Can a dirty throttle body cause the P0222 code?

Yes, a dirty or malfunctioning throttle body can cause improper TPS readings, potentially triggering the P0222 code.

9. What tools are needed to fix the P0222 code on a 2003 Infiniti G35?

You’ll need an OBDII scanner, a multimeter for electrical testing, and basic hand tools to access and replace components.

10. Will resetting the ECU clear the P0222 code permanently?

Resetting the ECU may temporarily clear the code, but if the underlying issue isn’t resolved, the code will return.

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