Engine-CodesInfiniti – P1703 2005 Infiniti G35

P1703 2005 Infiniti G35 Code - Transmission Control Module ROM

Quick Answer

The P1703 code in a 2005 Infiniti G35 indicates a problem with the Transmission Control Module (TCM) ROM. Common causes include Corrupted data in the TCM ROM, Faulty TCM module, Wiring issues or poor connections. 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
P1703 2005 Infiniti G35 indicates Transmission Control Module ROM.
Common causes
Common causes include Corrupted data in the TCM ROM, Faulty TCM module, Wiring issues or poor connections.
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.
Table of contents Created and updated by William Orellana on Sep 16, 2024
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Code P1703 2005 Infiniti G35 Description

The P1703 code in a 2005 Infiniti G35 indicates a problem with the Transmission Control Module (TCM) ROM. The TCM is responsible for controlling the transmission functions in the vehicle, such as shifting gears and managing torque converter lockup. The ROM (Read-Only Memory) is a type of memory chip that stores essential data and instructions for the TCM to operate correctly. When the TCM ROM encounters an issue, it can lead to various transmission-related problems and affect the overall performance of the vehicle.

OBDII Code P1703 2005 Infiniti G35 - Transmission Control Module ROM
P1703 2005 Infiniti G35 Code - Transmission Control Module ROM

Common Causes of P1703 2005 Infiniti G35

  1. Corrupted data in the TCM ROM
  2. Faulty TCM module
  3. Wiring issues or poor connections
  4. Software malfunction in the TCM
  5. Electrical interference or voltage spikes

Symptoms of P1703 2005 Infiniti G35

  1. Check Engine Light illuminated on the dashboard
  2. Erratic shifting or harsh transmission shifts
  3. Transmission slipping or failure to shift
  4. Reduced fuel efficiency
  5. Decreased engine performance

How to Fix P1703 2005 Infiniti G35

  1. Diagnose the specific cause of the P1703 code using a professional diagnostic scanner.
  2. Inspect the TCM module and wiring connections for any visible damage or corrosion.
  3. Clear the code and reprogram the TCM ROM with the latest software updates from the manufacturer.
  4. Test drive the vehicle to ensure that the transmission functions correctly and the code does not reappear.
  5. If necessary, replace the TCM module or repair any damaged wiring to resolve the issue effectively.

Cost to Fix P1703 2005 Infiniti G35

The typical repair costs for addressing a P1703 code in a 2005 Infiniti G35 can range from $200 to $600, including parts and labor. However, it's important to note that specific diagnosis time and labor rates at auto repair shops can vary based on factors such as location, vehicle make and model, and engine type. Most auto repair shops charge between $80 and $150 per hour for labor, but rates may be higher in metropolitan areas or at dealerships, while independent shops often offer lower rates. It's recommended to check local rates for a more accurate estimate.

Tech Notes for P1703 2005 Infiniti G35

There is a Factory Service Bulletin for the 2005 Infiniti G35 with 5-Speed A/T RE5R05A Transmission:

2005 Infiniti G35 RE5R05A Transmission Factory Service Bulletin OBDII Code P1703

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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 P1703 2005 Infiniti G35 Code

What does the OBDII code P1703 mean for a 2005 Infiniti G35?

The P1703 code indicates an issue with the Transmission Control Module (TCM) ROM, which may affect the vehicle's transmission performance.

What symptoms might I experience with the P1703 code?

Common symptoms include erratic shifting, harsh or delayed gear changes, and the check engine light being illuminated.

What could cause the P1703 code to set in my Infiniti G35?

Potential causes include a malfunctioning Transmission Control Module, electrical issues such as wiring faults or poor connections, or software corruption in the TCM.

Can I drive my 2005 Infiniti G35 with the P1703 code?

It is not advisable to drive the vehicle with this code, as it may lead to further transmission issues and affect overall drivability.

How can I diagnose the P1703 code effectively?

Begin by checking for any additional trouble codes, inspecting TCM connections and wiring, and verifying the condition of the transmission fluid. A professional scan tool may be needed for deeper diagnostics.

What are some common repairs for the P1703 code?

Repairs may include reprogramming or replacing the TCM, repairing or replacing damaged wiring, or addressing any related transmission issues.

Is the P1703 code serious?

Yes, the P1703 code is serious as it can lead to significant transmission problems if not addressed promptly.

How much does it typically cost to fix the P1703 code?

Repair costs can vary widely, ranging from $100 for a simple wiring fix to over $1,000 for TCM replacement or reprogramming.

Will clearing the P1703 code fix the problem?

Clearing the code may temporarily turn off the check engine light, but it will not fix the underlying issue that caused the code to set. The problem will likely return if not addressed.

Discuss the causes and fixes for P1703 2005 Infiniti G35 OBDII Code

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