AutoCodes – Infiniti – P1703 2004 Infiniti G35

P1703 2004 Infiniti G35 Code - Transmission Control Module ROM

Quick Answer

The transmission solenoids and valves are controlled by the Transmission Control Module (TCM) in response to signals sent from the Park & Neutral Position (PNP) Switch, Vehicle Speed Sensor (VSS), and Accelerator Pedal Position (APP) Sensor (Throttle Position Sensor). Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module 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: P1703 2004 Infiniti G35 indicates Transmission Control Module ROM.
Common causes: Common causes include Faulty Transmission Control Module (TCM), Transmission Control Module harness is open or shorted, Transmission Control Module 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 2,698

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 Jun 30, 2020

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P1703 2004 Infiniti G35 Description

OBDII Code P1703 2004 Infiniti G35 - Transmission Control Module ROM - AutoCodes.com — P1703 2004 Infiniti G35 Code - Transmission Control Module ROM

What does this mean?

What are the Possible Causes of the DTC P1703 2004 Infiniti G35?

Faulty Transmission Control Module (TCM)
Transmission Control Module harness is open or shorted
Transmission Control Module circuit poor electrical connection

How to Fix the DTC P1703 2004 Infiniti G35?

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 does this mean?

Code Tech Notes

There is a Factory Service Bulletin for the 2004 Infiniti G35 with 5-Speed A/T RE5R05A Transmission:
2004 Infiniti G35 RE5R05A Transmission Factory Service Bulletin OBDII Code P1703

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1703 2004 Infiniti G35 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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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 2004 Infiniti G35 Code

What does the OBDII code P1703 mean on a 2004 Infiniti G35?

1. P1703 indicates an issue with the Transmission Control Module (TCM) ROM, suggesting a fault in the programming or internal memory of the TCM. 2.

What are the common symptoms of code P1703 in a 2004 Infiniti G35?

Symptoms may include erratic shifting, the transmission staying in limp mode, reduced performance, and the check engine light being illuminated. 3.

What causes the P1703 code to appear on a 2004 Infiniti G35?

Common causes include a malfunctioning TCM, corrupted ROM data, electrical issues such as damaged wiring or connectors, or a software glitch. 4.

How do I diagnose the P1703 code on my 2004 Infiniti G35?

Diagnosis typically involves scanning the vehicle with an OBDII scanner, inspecting the TCM and related wiring, and testing the module for proper function using specialized equipment. 5.

Can a faulty TCM cause the P1703 code on a 2004 Infiniti G35?

Yes, a defective TCM is one of the main reasons for this code, as it may have internal memory issues or hardware failure. 6.

Is it safe to drive with the P1703 code on a 2004 Infiniti G35?

It is not advised to drive for extended periods since the transmission may not operate correctly, potentially causing further damage or unsafe driving conditions. 7.

How do I fix the P1703 code on my 2004 Infiniti G35?

Repairs may include reprogramming or replacing the TCM, repairing damaged wiring or connectors, and performing a software update if available. 8.

Does the P1703 code on a 2004 Infiniti G35 always require TCM replacement?

Not always. Sometimes the issue can be resolved with a ROM reflash or by addressing wiring and connector concerns. A thorough diagnosis is essential. 9.

How much does it cost to repair the P1703 code on a 2004 Infiniti G35?

Repair costs vary based on the issue but can range from $150 to $1,500, depending on whether the TCM needs reprogramming or replacement. 10.

Can a low battery cause the P1703 code on a 2004 Infiniti G35?

A low or failing battery may contribute to electrical issues but is unlikely to be the sole cause of the P1703 code. Always check the battery health as part of the diagnosis.