AutoCodes – Infiniti – P1731 2004 Infiniti G35

P1731 2004 Infiniti G35 Code - A/T 1st Engine Braking

Quick Answer

The engine braking is controlled by the Low Coast Brake Solenoid Valve. Common causes include Low transmission fluid, Faulty Low Coast Brake Solenoid Valve, Low Coast Brake Solenoid Valve harness is open or shorted. 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: P1731 2004 Infiniti G35 indicates A/T 1st Engine Braking.
Common causes: Common causes include Low transmission fluid, Faulty Low Coast Brake Solenoid Valve, Low Coast Brake Solenoid Valve harness is open or shorted.
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 2,530

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 Aug 03, 2020

Description
Possible Causes
How To Fix
Cost to Diagnose
FAQs
Comments
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Code P1731 2004 Infiniti G35 Description

The engine braking is controlled by the Low Coast Brake Solenoid Valve. The Transmission Control Module (TCM) uses the Automatic Transmission Fluid (ATF) Pressure Switch to monitor the Low Coast Brake apply pressure. The Diagnostic Trouble Code (DTC) will set when the TCM monitors each ATF Pressure Switch and Low Coast Brake Solenoid monitor value and detects as irregular when engine brake of 1st gear acts other than at M1 position.

OBDII Code P1731 2004 Infiniti G35 - A/T 1st Engine Braking - AutoCodes.com — P1731 2004 Infiniti G35 Code - A/T 1st Engine Braking

What does this mean?

What are the Possible Causes of the DTC P1731 2004 Infiniti G35?

Low transmission fluid
Faulty Low Coast Brake Solenoid Valve
Low Coast Brake Solenoid Valve harness is open or shorted
Low Coast Brake Solenoid Valve circuit poor electrical connection
Faulty Automatic Transmission Fluid (ATF) Pressure Switch

How to Fix the DTC P1731 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 is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P1731 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.

Need more information about the P1731 2004 Infiniti G35 code?

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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 P1731 2004 Infiniti G35 Code

1. What are the common symptoms of OBDII code P1731 in a 2004 Infiniti G35?

The common symptoms of code P1731 in a 2004 Infiniti G35 include harsh shifting, transmission slippage, and reduced engine braking performance.

2. What does the OBDII code P1731 indicate in a 2004 Infiniti G35?

Code P1731 in a 2004 Infiniti G35 indicates a problem with the Automatic Transmission 1st Engine Braking system.

3. What are the possible causes of OBDII code P1731 in a 2004 Infiniti G35?

Possible causes of code P1731 in a 2004 Infiniti G35 include a faulty transmission control module, damaged wiring or connectors, or internal transmission issues.

4. How can I diagnose the OBDII code P1731 in my 2004 Infiniti G35?

Diagnosing code P1731 in a 2004 Infiniti G35 involves using a diagnostic scanner to retrieve the code, inspecting the wiring and connectors for damage, and testing the transmission control module.

5. Can I continue driving my 2004 Infiniti G35 with OBDII code P1731?

It is not recommended to continue driving your 2004 Infiniti G35 with OBDII code P1731, as it can lead to further damage to the transmission if left unresolved.

6. How can I repair OBDII code P1731 in my 2004 Infiniti G35?

Repairing code P1731 in a 2004 Infiniti G35 may involve replacing the transmission control module, repairing or replacing damaged wiring, or addressing any internal transmission issues.

7. Is it possible to reset OBDII code P1731 in a 2004 Infiniti G35?

Resetting code P1731 in a 2004 Infiniti G35 can be done using a diagnostic scanner by clearing the code after addressing the underlying issue causing the fault.

8. Will OBDII code P1731 in a 2004 Infiniti G35 cause the Check Engine Light to illuminate?

Yes, code P1731 in a 2004 Infiniti G35 will trigger the Check Engine Light to illuminate on the dashboard to alert the driver of a transmission issue.

9. Can a DIY enthusiast fix OBDII code P1731 in a 2004 Infiniti G35?

While some aspects of diagnosing and repairing code P1731 may be DIY-friendly, it is recommended to seek professional help for accurate diagnosis and proper repair to avoid further complications.

10. How much does it cost to repair OBDII code P1731 in a 2004 Infiniti G35?

The cost of repairing code P1731 in a 2004 Infiniti G35 can vary depending on the underlying issue, parts needed, and labor costs. It is advisable to obtain quotes from reputable mechanics or repair shops for an accurate estimate.