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P1702 Infiniti Code - Transmission Control Module RAM

Quick Answer

The P1702 code for Infiniti vehicles refers to an issue with the Transmission Control Module's Random Access Memory (RAM). Common causes include Faulty TCM RAM module, Electrical issues such as wiring harness problems or loose connections, Corrosion or damage to TCM connectors. 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
P1702 Infiniti indicates Transmission Control Module RAM.
Common causes
Common causes include Faulty TCM RAM module, Electrical issues such as wiring harness problems or loose connections, Corrosion or damage to TCM connectors.
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 05, 2024
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Code P1702 Infiniti Description

The P1702 code for Infiniti vehicles refers to an issue with the Transmission Control Module's Random Access Memory (RAM). The Transmission Control Module (TCM) is a crucial component that controls the operation of the transmission system in the vehicle. The RAM stores important data and parameters that the TCM uses to regulate shifting patterns, torque converter lockup, and other transmission functions. When the TCM detects a problem with its RAM, it can lead to erratic shifting behavior, decreased fuel efficiency, and potential transmission malfunctions.

OBDII Code P1702 Infiniti - Transmission Control Module RAM
P1702 Infiniti Code - Transmission Control Module RAM

Common Causes of P1702 Infiniti

  1. Faulty TCM RAM module
  2. Electrical issues such as wiring harness problems or loose connections
  3. Corrosion or damage to TCM connectors
  4. Software malfunction or programming errors
  5. Voltage spikes or electrical surges

Symptoms of P1702 Infiniti

  1. Erratic shifting or difficulty shifting gears
  2. Harsh or delayed gear changes
  3. Transmission slipping
  4. Decreased fuel efficiency
  5. Illumination of the Check Engine Light

How to Fix P1702 Infiniti

  1. Diagnose the specific cause of the P1702 code by using a professional OBD-II scanner to access the TCM and check for any stored fault codes.
  2. Inspect the TCM RAM module for any visible damage or corrosion, and replace it if necessary.
  3. Check the wiring harness and connectors for any signs of wear, damage, or loose connections. Repair or replace as needed.
  4. Update the TCM software to the latest version to address any programming errors or glitches.
  5. Clear the fault codes and perform a test drive to ensure that the transmission is functioning properly.

Cost to Fix P1702 Infiniti

The cost of repairing a P1702 code on an Infiniti vehicle can vary depending on the specific cause of the issue and the labor rates in your area. On average, you can expect to pay anywhere from $200 to $500 for parts and labor. Keep in mind that diagnostic time and labor rates can influence the final cost, so it's recommended to obtain quotes from local auto repair shops for a more accurate estimate. Additionally, dealership rates may be higher than independent shops, so consider your options carefully.

What does this mean?

Tech Notes for P1702 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 P1702

Need more information about the P1702 Infiniti code?

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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 P1702 Infiniti Code

1. What are the common symptoms of OBDII code P1702 in an Infiniti related to the Transmission Control Module RAM?

- Common symptoms include harsh shifting, transmission slipping, and the transmission going into limp mode.

2. What can cause the OBDII code P1702 in an Infiniti related to the Transmission Control Module RAM?

- The code P1702 can be caused by issues such as a faulty transmission control module, damaged wiring, or a poor electrical connection.

3. How do I diagnose the OBDII code P1702 in my Infiniti related to the Transmission Control Module RAM?

- Diagnosis typically involves using a diagnostic scanner to read the code, checking for any other related trouble codes, and inspecting the transmission control module and its connections.

4. Can I continue driving my Infiniti with the OBDII code P1702 related to the Transmission Control Module RAM?

- It is not recommended to continue driving with this code as it can lead to further transmission damage. It's best to address the issue promptly.

5. What are some repair tips for fixing the OBDII code P1702 in an Infiniti related to the Transmission Control Module RAM?

- Repair tips may include checking and repairing any damaged wiring, ensuring proper connection of the transmission control module, and if necessary, replacing the module itself.

6. Will resetting the OBDII code P1702 in my Infiniti related to the Transmission Control Module RAM solve the issue?

- Resetting the code may temporarily clear the warning light, but it will not fix the underlying problem causing the code to appear. Proper diagnosis and repair are necessary.

7. How much does it cost to repair the OBDII code P1702 in an Infiniti related to the Transmission Control Module RAM?

- The cost of repair can vary depending on the exact cause of the issue. It may range from a simple wiring repair to a more expensive transmission control module replacement.

8. What happens if the OBDII code P1702 in an Infiniti related to the Transmission Control Module RAM is left untreated?

- Leaving this code untreated can lead to further transmission problems, potential transmission failure, and unsafe driving conditions.

9. Can a DIY enthusiast fix the OBDII code P1702 in an Infiniti related to the Transmission Control Module RAM?

- Depending on the root cause of the issue, some DIY enthusiasts with automotive repair knowledge may be able to address the problem. However, complex issues may require professional assistance.

10. How long does it take to repair the OBDII code P1702 in an Infiniti related to the Transmission Control Module RAM?

- The repair time can vary based on the specific cause of the code. Simple fixes like wiring repairs may take a short time, while replacing the transmission control module could be more time-consuming.

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