P317B Infiniti 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 Infiniti 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.
Code P317B Infiniti Description
What are the Possible Causes of the DTC P317B Infiniti?
- 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 Infiniti?
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 Infiniti 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.
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Frequently Asked Questions about P317B Infiniti Code
1. What does OBDII code P317B mean on an Infiniti?
P317B indicates a "Traction Motor Inverter Relay Cut-Off Request," meaning there is an issue with the inverter relay in the hybrid or electric system.
2. What are the common symptoms of code P317B in an Infiniti?
Symptoms may include reduced power, the vehicle entering limp mode, warning lights on the dashboard, or the inability to operate in electric or hybrid mode.
3. What causes the P317B code to appear?
Common causes include a faulty traction motor inverter relay, wiring issues, a malfunctioning inverter, or a problem with the hybrid power control module.
4. Can I drive my Infiniti with a P317B code?
Driving with this code is not recommended since it could lead to further damage to the hybrid or electric system and may limit vehicle performance.
5. How do you diagnose the P317B code on an Infiniti?
A technician will use a scan tool to check for additional codes, inspect the inverter relay and wiring, and test the traction motor inverter system for faults.
6. How is the P317B code typically fixed?
Repairs may involve replacing the traction motor inverter relay, repairing or replacing damaged wiring, or addressing issues with the inverter or control module.
7. How much does it cost to repair the P317B code on an Infiniti?
Repair costs vary depending on the issue but can range from $200 for wiring repairs to over $1,000 for inverter replacement.
8. Can a weak 12V battery cause the P317B code?
Yes, a weak or failing 12V battery can sometimes cause relay-related issues in hybrid or electric systems, so it should be tested as part of the diagnosis.
9. Will clearing the P317B code fix the problem?
Clearing the code without addressing the underlying issue will not resolve the problem, and the code is likely to return.
10. Is the P317B code covered under warranty for Infiniti vehicles?
If your vehicle is still under the hybrid or powertrain warranty, repairs related to this code may be covered. Check with your dealer for details.
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