AutoCodes – Generic – P317B

P317B Code - Traction Motor Inverter Relay Cut-Off Request

Quick Answer

The Diagnostic Trouble Code (DTC) will be set when the Hybrid Powertrain Control Module (HPCM) detects a self-diagnosis signal indicating the need to cut off the relay in the traction motor inverter. Common causes include Faulty Traction Motor Inverter, Traction Motor Inverter harness is open or shorted, Traction Motor Inverter circuit poor electrical connection. 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: P317B indicates Traction Motor Inverter Relay Cut-Off Request.
Common causes: Common causes include Faulty Traction Motor Inverter, Traction Motor Inverter harness is open or shorted, Traction Motor Inverter circuit poor electrical connection.
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 Popularity 316

How popular is this code, among other codes? Low

Repair Importance Level

Urgent (Diagnose now) (3 / 3)

Repair Difficulty Level

Advanced (Pro) (3 / 3)

What is this?

Table of contents Created and updated by William Orellana on Aug 09, 2024

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P317B Description

The Diagnostic Trouble Code (DTC) will be set when the Hybrid Powertrain Control Module (HPCM) detects a self-diagnosis signal indicating the need to cut off the relay in the traction motor inverter.

OBDII Code P317B - Traction Motor Inverter Relay Cut-Off Request - AutoCodes.com — P317B Code - Traction Motor Inverter Relay Cut-Off Request

What does this mean?

What are the Possible Causes of the DTC P317B?

Faulty Traction Motor Inverter
Traction Motor Inverter harness is open or shorted
Traction Motor Inverter circuit poor electrical connection

How to Fix the DTC P317B?

Review the 'Possible Causes' above and visually examine the corresponding wiring harness and connectors. Check for damaged components and inspect connector pins for signs of being broken, bent, pushed out, or corroded.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P317B code, it typically requires 1.0 hour of labor. Rates vary by location, vehicle, and shop. Many shops charge between $80–$150 per hour; dealerships and metro areas may be higher, independents may be lower.

Need more information about the P317B code?

Need more information on how to fix the P317B code? Get Access to Factory Service Manuals

Need Help with the Code?

Get the P317B code diagnosed by a professional: Find a repair shop in your area

Information for Specific Makes

P317B Infiniti — Traction Motor Inverter Relay Cut-Off Request
P317B Nissan — Traction Motor Inverter Relay Cut-Off Request

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 P317B Code

1. What does the OBDII code P317B mean?

P317B indicates that the traction motor inverter has detected a relay cut-off request, typically due to a fault in the hybrid or electric vehicleâ€™s powertrain system.

2. What are the common symptoms of code P317B?

Common symptoms include reduced power or performance, illumination of the check engine light or hybrid system warning light, and limited functionality of the vehicleâ€™s electric drive system.

3. What causes the P317B code to appear?

Possible causes include a malfunctioning traction motor inverter relay, wiring issues, a faulty inverter assembly, or software errors in the hybrid control system.

4. Can driving with code P317B damage my vehicle?

Yes, continuing to drive with this code may strain the hybrid or electric powertrain components and could lead to more severe damage.

5. How is code P317B diagnosed?

A technician will use a diagnostic scan tool to read the code, inspect the traction motor inverter relay and related wiring, and perform tests on the hybrid control system.

6. How do you fix the P317B code?

Repairs may involve replacing the traction motor inverter relay, repairing damaged wiring or connectors, reprogramming the hybrid control module, or, in rare cases, replacing the inverter.

7. Is the P317B code specific to hybrid or electric vehicles?

Yes, P317B is specific to hybrid or electric vehicles, as it pertains to the traction motor inverter and its relay system.

8. Can a weak battery cause a P317B code?

A weak or failing high-voltage battery may contribute to this code, as it can disrupt the proper operation of the traction motor inverter.

9. How much does it cost to fix the P317B code?

Repair costs can vary widely, typically ranging from $200 to $2,000, depending on whether the issue is a minor wiring repair or a major inverter component replacement.

10. Can I clear the P317B code without fixing the issue?

Clearing the code without addressing the root cause may temporarily turn off the warning light, but the issue will likely return and could lead to further complications.