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P1273 Isuzu Code - Accelerator Pedal Position Sensor 1-3 Correlation

Quick Answer

The P1273 Isuzu diagnostic trouble code (DTC) refers to an issue with the Accelerator Pedal Position Sensor 1-3 correlation. Common causes include Faulty accelerator pedal position sensor, Wiring or connector issues in the sensor circuit, Throttle body malfunction. 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
P1273 Isuzu indicates Accelerator Pedal Position Sensor 1-3 Correlation.
Common causes
Common causes include Faulty accelerator pedal position sensor, Wiring or connector issues in the sensor circuit, Throttle body malfunction.
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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1273 Isuzu Description

The P1273 Isuzu diagnostic trouble code (DTC) refers to an issue with the Accelerator Pedal Position Sensor 1-3 correlation. This means that there is a discrepancy between the signals being sent by the accelerator pedal position sensor 1 and sensor 3. The accelerator pedal position sensor is a crucial component of the vehicle's electronic throttle control system, as it communicates the driver's input to the engine control module (ECM) to adjust the throttle opening accordingly. When there is a correlation issue between the two sensors, it can lead to poor engine performance, decreased fuel efficiency, and potentially unsafe driving conditions.

OBDII Code P1273 Isuzu - Accelerator Pedal Position Sensor 1-3 Correlation
P1273 Isuzu Code - Accelerator Pedal Position Sensor 1-3 Correlation

Common Causes of P1273 Isuzu

  1. Faulty accelerator pedal position sensor.
  2. Wiring or connector issues in the sensor circuit.
  3. Throttle body malfunction.
  4. ECM software or hardware issues.
  5. Electrical interference or signal disruption.

Symptoms of P1273 Isuzu

  1. Check engine light illuminated.
  2. Reduced engine power or acceleration.
  3. Poor fuel efficiency.
  4. Engine stalling or hesitation.
  5. Rough idling or surging.

How to Fix P1273 Isuzu

  1. Begin by diagnosing the specific cause of the P1273 code using a diagnostic tool to pinpoint the issue.
  2. Inspect the accelerator pedal position sensor 1 and 3 for any signs of damage or wear. Replace any faulty sensors.
  3. Check the wiring harness and connectors for corrosion, damage, or loose connections. Repair or replace as needed.
  4. Test the throttle body for proper functionality and clean it if necessary. Replace the throttle body if it is malfunctioning.
  5. Clear the code from the ECM memory and perform a test drive to ensure the issue has been resolved.

Cost to Fix P1273 Isuzu

The cost of repairing a P1273 Isuzu code can vary depending on the specific cause of the issue and the labor rates in your area. On average, the parts for this repair can range from $100 to $300, while the labor cost can range from $100 to $300 as well. Therefore, the total repair cost could be anywhere from $200 to $600. It's important to note that additional diagnostic time may be required to accurately identify the cause of the code, so it's advisable to consult with a professional mechanic for a more precise estimate. Labor rates at auto repair shops can vary, so it's recommended to research local rates for a more accurate cost estimation.

When is the Code Detected?

The Engine Control Module (ECM) compared the signal from both Accelerator Pedal Position (APP) sensors and detected a voltage difference.

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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 P1273 Isuzu Code

1. What are common symptoms of OBDII code P1273 in an Isuzu related to the Accelerator Pedal Position Sensor 1-3 Correlation?

- Common symptoms include reduced engine power, hesitation or jerking during acceleration, and the Check Engine light being illuminated.

2. What can cause the OBDII code P1273 in an Isuzu indicating Accelerator Pedal Position Sensor 1-3 Correlation?

- The code can be triggered by a faulty accelerator pedal position sensor, issues with the throttle body, wiring problems, or a malfunction in the engine control module.

3. How can I diagnose the OBDII code P1273 in my Isuzu linked to the Accelerator Pedal Position Sensor 1-3 Correlation?

- Diagnosis involves using a scan tool to retrieve the code, checking the wiring and connectors related to the accelerator pedal position sensor, and performing a thorough inspection of the sensor itself.

4. Is it safe to drive my Isuzu with the OBDII code P1273 for Accelerator Pedal Position Sensor 1-3 Correlation?

- It is not recommended to drive the vehicle with this code as it can lead to poor performance and potential safety issues due to the correlation between the accelerator pedal position sensors.

5. How can I repair the OBDII code P1273 in my Isuzu indicating Accelerator Pedal Position Sensor 1-3 Correlation?

- Repair may involve replacing the accelerator pedal position sensor, repairing or replacing damaged wiring, cleaning the throttle body, or reprogramming the engine control module.

6. Can a DIY enthusiast fix the OBDII code P1273 related to Accelerator Pedal Position Sensor 1-3 Correlation in an Isuzu?

- While some basic diagnosis and repairs can be done by a DIY enthusiast, it is recommended to seek professional help for accurate diagnosis and proper repair of this issue.

7. What are the potential long-term effects of ignoring the OBDII code P1273 in an Isuzu indicating Accelerator Pedal Position Sensor 1-3 Correlation?

- Ignoring this code can lead to further damage to engine components, reduced fuel efficiency, and ultimately, complete engine failure if left unresolved for an extended period.

8. How much does it typically cost to repair the OBDII code P1273 for Accelerator Pedal Position Sensor 1-3 Correlation in an Isuzu?

- The cost of repair can vary depending on the exact cause of the issue, but it can range from $100 to $500 or more, including parts and labor.

9. Can a bad Accelerator Pedal Position Sensor cause other OBDII codes to appear in an Isuzu?

- Yes, a faulty Accelerator Pedal Position Sensor can cause related codes such as P1271, P1272, or P1274 to appear in addition to or instead of P1273.

10. Is it necessary to reset the OBDII code P1273 in an Isuzu after repairing the Accelerator Pedal Position Sensor 1-3 Correlation issue?

- Yes, it is essential to clear the code using a scan tool after repairing the problem to reset the Check Engine light and ensure that the issue has been resolved successfully.

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