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P1517 Isuzu Code - Commanded Versus Actual Throttle Position Correlation

Quick Answer

The P1517 Isuzu code indicates a problem with the correlation between the commanded throttle position by the vehicle's electronic control module (ECM) and the actual position of the throttle. Common causes include Faulty throttle position sensor, Malfunctioning throttle actuator control module, Wiring issues 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
P1517 Isuzu indicates Commanded Versus Actual Throttle Position Correlation.
Common causes
Common causes include Faulty throttle position sensor, Malfunctioning throttle actuator control module, Wiring issues 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.
What is this?
Table of contents Created and updated by William Orellana on Sep 10, 2024
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Code P1517 Isuzu Description

The P1517 Isuzu code indicates a problem with the correlation between the commanded throttle position by the vehicle's electronic control module (ECM) and the actual position of the throttle. In modern vehicles, the throttle position is controlled electronically by the ECM rather than mechanically by a throttle cable. When the ECM detects a discrepancy between the commanded position and the actual position of the throttle, it triggers this diagnostic trouble code (DTC).

OBDII Code P1517 Isuzu - Commanded Versus Actual Throttle Position Correlation
P1517 Isuzu Code - Commanded Versus Actual Throttle Position Correlation

Common Causes of P1517 Isuzu

  1. Faulty throttle position sensor
  2. Malfunctioning throttle actuator control module
  3. Wiring issues or poor connections
  4. ECM software or hardware malfunction
  5. Mechanical issues with the throttle body

Symptoms of P1517 Isuzu

  1. Loss of power or acceleration
  2. Engine hesitation or surging
  3. Rough idling or stalling
  4. Check Engine Light illuminated
  5. Reduced fuel efficiency

How to Fix P1517 Isuzu

  1. Diagnose the issue by using a scan tool to check for the P1517 code and perform a thorough inspection of the throttle components.
  2. Test the throttle position sensor and throttle actuator control module for proper function.
  3. Inspect the wiring harness and connectors for any signs of damage or corrosion, repairing or replacing as needed.
  4. If the issue persists, consider replacing the throttle body assembly or reprogramming the ECM.
  5. Clear the DTC and perform a road test to ensure the problem has been resolved.

Cost to Fix P1517 Isuzu

The typical repair costs for addressing a P1517 Isuzu code can vary depending on the specific cause of the issue. On average, the parts required for this repair, such as a new throttle position sensor or throttle body, can range from $100 to $500. Labor costs can add an additional $100 to $300, with total repair costs falling between $200 and $800. It's important to note that these estimates are general guidelines, and actual costs may vary based on the vehicle's make and model, the location of the repair shop, and any additional diagnostic or repair work required.

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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 P1517 Isuzu Code

1. What are the common symptoms of OBDII code P1517 in an Isuzu vehicle?

- Common symptoms include rough idling, poor acceleration, reduced engine power, and the Check Engine Light being illuminated.

2. What does the OBDII code P1517 Isuzu mean?

- The code P1517 indicates a problem with the correlation between the commanded throttle position and the actual throttle position in the Isuzu's engine control system.

3. What are the possible causes of OBDII code P1517 in an Isuzu?

- Potential causes include a faulty throttle position sensor, issues with the throttle body, wiring problems, vacuum leaks, or a malfunctioning engine control module (ECM).

4. How can I diagnose the OBDII code P1517 in my Isuzu?

- Diagnosing the code typically involves scanning the vehicle for trouble codes, checking the throttle position sensor's readings, inspecting the throttle body, and testing the wiring for any faults.

5. Can I still drive my Isuzu with OBDII code P1517 present?

- It is not recommended to drive the vehicle with the P1517 code active, as it can lead to poor engine performance and potential safety hazards. It's best to address the issue promptly.

6. How can I repair OBDII code P1517 in my Isuzu?

- Repair methods may include replacing the throttle position sensor, cleaning or replacing the throttle body, repairing any wiring issues, fixing vacuum leaks, or updating the engine control module software.

7. Is it possible to reset the OBDII code P1517 in an Isuzu without fixing the underlying issue?

- While you can clear the trouble code using an OBDII scanner, the Check Engine Light is likely to come back on if the root cause of the code is not addressed.

8. Will OBDII code P1517 cause damage to the engine if left untreated in an Isuzu?

- Ignoring the P1517 code can potentially cause further damage to the engine over time due to inefficient fuel delivery and incorrect throttle responses. It's best to address the issue promptly.

9. Can a DIY enthusiast fix the OBDII code P1517 issue in an Isuzu, or is professional help recommended?

- Depending on the individual's skill level and access to tools, a DIY enthusiast may be able to address the P1517 code by following repair guides. However, professional help is recommended for complex diagnoses and repairs.

10. How long does it typically take to repair OBDII code P1517 in an Isuzu?

- The repair time for the P1517 code can vary based on the specific cause of the issue and the expertise of the person performing the repairs. It may range from a few hours to a full day in some cases.

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