P1227 Infiniti Code - Accelerator Pedal Position Sensor 2 Circuit Low Input
Quick Answer
The P1227 Infiniti code indicates a problem with the Accelerator Pedal Position Sensor 2 Circuit, specifically a low input signal. Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections. 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
- P1227 Infiniti indicates Accelerator Pedal Position Sensor 2 Circuit Low Input.
- Common causes
- Common causes include Faulty accelerator pedal position sensor, Damaged wiring or connectors in the sensor circuit, Corrosion or poor connections.
- 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.
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Code P1227 Infiniti Description
The P1227 Infiniti code indicates a problem with the Accelerator Pedal Position Sensor 2 Circuit, specifically a low input signal. The accelerator pedal position sensor is a vital component of the vehicle's electronic throttle control system. It is responsible for sending the actual position of the accelerator pedal to the Engine Control Module (ECM), which then determines the appropriate throttle response. When the sensor detects a low input signal, it means that the voltage being sent to the ECM is below the expected range, indicating a potential issue with the sensor or its circuit.
Common Causes of P1227 Infiniti
- Faulty accelerator pedal position sensor
- Damaged wiring or connectors in the sensor circuit
- Corrosion or poor connections
- ECM malfunction
- Environmental factors such as moisture or debris affecting the sensor
Symptoms of P1227 Infiniti
- Reduced engine power
- Poor acceleration
- Engine stalling or surging
- Illuminated check engine light
- Difficulty maintaining speed
How to Fix P1227 Infiniti
- Begin by performing a thorough inspection of the accelerator pedal position sensor, wiring, and connectors for any visible damage or corrosion.
- Test the sensor using a multimeter to check for proper voltage output. Replace the sensor if it fails to provide the correct readings.
- Check the wiring harness for continuity and repair any damaged wires.
- Clear the diagnostic trouble codes from the ECM using a scan tool and test drive the vehicle to ensure the issue has been resolved.
- If the problem persists, consider seeking professional help from a certified mechanic or dealership for further diagnosis and repair.
Cost to Fix P1227 Infiniti
The cost of repairing a P1227 Infiniti code can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, replacing the accelerator pedal position sensor can range from $100 to $300, while addressing wiring or connector issues may add to the total cost. Labor rates at auto repair shops typically range from $80 to $150 per hour, and diagnosis time should also be factored into the overall cost. It's recommended to obtain quotes from multiple repair facilities to compare prices and ensure a fair estimate for the repair.
When is the Code Detected?
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Information for Specific Infiniti Models
- P1227 2003 Infiniti G35 — Accelerator Pedal Position Sensor 2 Circuit Low Input
Frequently Asked Questions about P1227 Infiniti Code
1. What does the OBDII code P1227 mean on an Infiniti?
P1227 indicates a problem with the Accelerator Pedal Position Sensor 2, specifically a low input voltage detected by the Engine Control Module (ECM).
2. What are the common symptoms of code P1227 in an Infiniti?
Common symptoms include reduced engine power, poor throttle response, difficulty accelerating, and illumination of the Check Engine Light.
3. What causes the P1227 code to appear on an Infiniti?
Potential causes include a faulty accelerator pedal position sensor, damaged wiring or connectors, corrosion in the circuit, or a malfunctioning ECM.
4. Can I drive my Infiniti with the P1227 code?
Driving with this code is not recommended, as the vehicle may lose power unexpectedly or go into "limp mode," affecting safety and performance.
5. How is the P1227 code diagnosed?
A mechanic will check for stored trouble codes, inspect the accelerator pedal position sensor and its wiring, and measure voltage and continuity in the circuit.
6. How do you fix the P1227 code on an Infiniti?
Repairs may involve replacing the accelerator pedal position sensor, repairing or replacing damaged wiring or connectors, and clearing the code with a scan tool.
7. Is the accelerator pedal position sensor the same as the throttle position sensor?
No, the accelerator pedal position sensor monitors pedal movement, while the throttle position sensor monitors the throttle body’s position.
8. What tools are needed to repair the P1227 code?
Diagnosis and repair typically require an OBDII scanner, a multimeter, and basic hand tools to inspect and replace components.
9. How much does it cost to fix the P1227 code on an Infiniti?
Costs vary, but replacing the accelerator pedal position sensor typically ranges from $150 to $400, including parts and labor.
10. Can a dirty throttle body cause the P1227 code?
While a dirty throttle body is unlikely to directly cause P1227, it can contribute to related performance issues and should be inspected during diagnosis.
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