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P317A Infiniti Code - Traction Motor Inverter Pulse Width Modulation OFF Request

Quick Answer

The P317A code for Infiniti vehicles indicates a problem with the traction motor inverter pulse width modulation (PWM) system. Common causes include Faulty traction motor inverter, Wiring issues or loose connections, Software 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
P317A Infiniti indicates Traction Motor Inverter Pulse Width Modulation OFF Request.
Common causes
Common causes include Faulty traction motor inverter, Wiring issues or loose connections, Software 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 14, 2024
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Code P317A Infiniti Description

The P317A code for Infiniti vehicles indicates a problem with the traction motor inverter pulse width modulation (PWM) system. The traction motor inverter is responsible for converting the direct current (DC) power from the battery into alternating current (AC) power to drive the electric motor in hybrid or electric vehicles. The PWM system controls the amount of power delivered to the motor by adjusting the width of the electrical pulses. When the PWM system is turned off, it means that the inverter is not functioning properly, leading to a loss of power to the motor.

OBDII Code P317A Infiniti - Traction Motor Inverter Pulse Width Modulation OFF Request
P317A Infiniti Code - Traction Motor Inverter Pulse Width Modulation OFF Request

Common Causes of P317A Infiniti

  1. Faulty traction motor inverter
  2. Wiring issues or loose connections
  3. Software malfunction
  4. Overheating of inverter components
  5. Water or moisture damage to inverter components

Symptoms of P317A Infiniti

  1. Loss of power or acceleration
  2. Reduced electric motor performance
  3. Warning lights on the dashboard (such as the hybrid system warning light)
  4. Vehicle unable to operate in electric mode

How to Fix P317A Infiniti

  1. Diagnose the specific cause of the issue using a diagnostic scanner and specialized tools.
  2. Inspect the traction motor inverter components, wiring, and connections for any visible damage or loose connections.
  3. Test the inverter components, such as power transistors, control circuitry, and sensors, to identify any faulty parts.
  4. Replace or repair the faulty components as needed.
  5. Clear the diagnostic trouble codes and perform a test drive to verify that the issue has been resolved.

Cost to Fix P317A Infiniti

The typical repair costs for addressing a P317A code in an Infiniti vehicle can vary depending on the specific cause of the issue and the extent of the repairs needed. In general, the cost of replacing a faulty traction motor inverter or related components can range from $500 to $2000, including parts and labor. It's important to note that the diagnosis time and labor rates at auto repair shops can vary, so it's advisable to check with local shops for a more precise estimate. Additionally, rates may be higher at dealerships or in metropolitan areas, while independent shops may offer lower prices.

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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 P317A Infiniti Code

1. What does the OBDII code P317A mean for an Infiniti vehicle?

The P317A code indicates a "Traction Motor Inverter Pulse Width Modulation OFF Request," which typically relates to an issue with the hybrid or electric vehicle's traction motor inverter system.

2. What are the common symptoms of the P317A code?

Symptoms may include reduced vehicle performance, warning lights on the dashboard (such as the check engine light or hybrid warning light), or the vehicle entering limp mode.

3. What causes the P317A code to appear in an Infiniti?

Common causes include a malfunction in the traction motor inverter, electrical connection issues, or a fault in the hybrid control module or related sensors.

4. Is it safe to drive with the P317A code active?

It’s not recommended to drive the vehicle with this code active, as it can indicate a serious issue with the hybrid or electric motor system, potentially leading to further damage or unsafe driving conditions.

5. How do you diagnose the P317A code on an Infiniti?

Diagnosing this code involves using an OBDII scanner to confirm the fault, inspecting the traction motor inverter and related wiring, and testing the hybrid control module for proper operation.

6. Can a dead or weak battery cause the P317A code?

Yes, a weak or failing hybrid battery or 12V auxiliary battery can cause this code to appear, as it may disrupt the proper functioning of the inverter system.

7. What repairs are needed to fix the P317A code?

Repairs may include replacing the traction motor inverter, repairing or replacing damaged wiring, or reprogramming or replacing the hybrid control module.

8. How much does it cost to fix the P317A code on an Infiniti?

The cost can vary widely depending on the required repairs, but traction motor inverter replacement can cost between $2,000 and $5,000, while simpler repairs like wiring fixes may cost less.

9. Can the P317A code be cleared without repairs?

Clearing the code without addressing the underlying issue may cause it to reappear. Proper diagnosis and repair are necessary to resolve the problem permanently.

10. What tools are needed to troubleshoot the P317A code?

A professional-grade OBDII scanner capable of reading hybrid system codes, a digital multimeter, and access to the vehicle's service manual are typically needed for diagnosis.

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