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P1701 Infiniti Code - Transmission Control Module Power Supply

Quick Answer

The P1701 code for Infiniti vehicles refers to an issue with the Transmission Control Module (TCM) power supply. Common causes include Faulty TCM power supply relay, Wiring or connection issues, Corrosion or damage to TCM power supply circuit. 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
P1701 Infiniti indicates Transmission Control Module Power Supply.
Common causes
Common causes include Faulty TCM power supply relay, Wiring or connection issues, Corrosion or damage to TCM power supply circuit.
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 Aug 25, 2024
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Code P1701 Infiniti Description

The P1701 code for Infiniti vehicles refers to an issue with the Transmission Control Module (TCM) power supply. The TCM is responsible for controlling various functions within the transmission system, such as shifting gears and managing torque converter lockup. When the power supply to the TCM is compromised, it can lead to erratic shifting, poor performance, and potentially even transmission failure. This code typically indicates an electrical issue within the TCM circuit, which can disrupt communication between the TCM and other vehicle systems.

OBDII Code P1701 Infiniti - Transmission Control Module Power Supply
P1701 Infiniti Code - Transmission Control Module Power Supply

Common Causes of P1701 Infiniti

  1. Faulty TCM power supply relay
  2. Wiring or connection issues
  3. Corrosion or damage to TCM power supply circuit
  4. Failed TCM module
  5. Battery or alternator problems affecting power supply

Symptoms of P1701 Infiniti

  1. Delayed or harsh shifting
  2. Transmission slipping
  3. Inability to shift gears
  4. Illuminated Check Engine light
  5. Reduced fuel efficiency

How to Fix P1701 Infiniti

  1. Diagnose the electrical system to pinpoint the exact cause of the power supply issue.
  2. Inspect and test the TCM power supply relay for functionality.
  3. Check for any damaged wiring or connections and repair or replace as needed.
  4. Test the TCM module for faults and replace if necessary.
  5. Address any underlying battery or alternator issues that may be affecting the power supply.

Cost to Fix P1701 Infiniti

The cost of repairing a P1701 code on an Infiniti vehicle can vary depending on the specific cause of the issue. On average, you can expect to pay between $200 and $500 for parts and labor. However, keep in mind that diagnostic time and labor rates can fluctuate, so it's advisable to consult with a reputable auto repair shop for a more accurate estimate based on your location and vehicle model.

What does this mean?

Tech Notes for P1701 Infiniti

There is a Factory Service Bulletin for all 2003–2010 Infiniti vehicles with 5-Speed A/T RE5R05A Transmission:
2003–2010 Infiniti RE5R05A Transmission Factory Service Bulletin OBDII Code P1701

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Information for Specific Infiniti Models

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 P1701 Infiniti Code

1. What are the common symptoms of OBDII code P1701 in an Infiniti related to the Transmission Control Module Power Supply?

- Common symptoms include transmission shifting issues, harsh shifting, delayed shifting, and in some cases, the vehicle may not shift gears at all.

2. What are the possible causes of OBDII code P1701 in an Infiniti related to the Transmission Control Module Power Supply?

- The code P1701 in an Infiniti is typically caused by a faulty Transmission Control Module power supply, damaged wiring or connectors, a blown fuse, or a failing Transmission Control Module.

3. How can I diagnose OBDII code P1701 in my Infiniti related to the Transmission Control Module Power Supply?

- Diagnosis involves using a scan tool to read the code, checking the transmission fluid level and condition, inspecting the wiring and connectors for damage, and testing the power supply to the Transmission Control Module.

4. Can a DIY enthusiast repair OBDII code P1701 in an Infiniti related to the Transmission Control Module Power Supply?

- While some basic troubleshooting like checking fuses and connectors can be done by a DIY enthusiast, diagnosing and repairing issues related to the Transmission Control Module should be left to a professional mechanic.

5. Is it safe to continue driving with OBDII code P1701 in my Infiniti related to the Transmission Control Module Power Supply?

- It is not recommended to drive with code P1701 present, as it can lead to further damage to the transmission and potentially leave you stranded on the road.

6. How much does it cost to repair OBDII code P1701 in an Infiniti related to the Transmission Control Module Power Supply?

- The cost of repairing code P1701 can vary depending on the exact cause of the issue. It is advisable to get a diagnostic from a qualified mechanic to determine the exact cost.

7. Can resetting the OBDII code P1701 in my Infiniti related to the Transmission Control Module Power Supply make it go away permanently?

- Resetting the code may temporarily clear the warning light, but if the underlying issue is not addressed, the code is likely to return.

8. Will OBDII code P1701 in an Infiniti related to the Transmission Control Module Power Supply cause the vehicle to go into "limp mode"?

- In some cases, the vehicle may go into "limp mode" as a safety measure to prevent further damage when code P1701 is detected.

9. Are there any recalls related to OBDII code P1701 in Infiniti vehicles for Transmission Control Module Power Supply issues?

- It is advisable to check with your local Infiniti dealership or visit the National Highway Traffic Safety Administration (NHTSA) website to see if there are any recalls related to this issue.

10. How can I prevent OBDII code P1701 in my Infiniti related to the Transmission Control Module Power Supply from occurring in the future?

- Regular maintenance of the transmission system, including checking fluid levels, addressing any warning signs promptly, and following the manufacturer's recommended service schedule can help prevent code P1701 from occurring.

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