AutoCodes – Infiniti – P0745 2006 Infiniti G35

P0745 2006 Infiniti G35 Code - Line Pressure Solenoid Valve Fault

Quick Answer

The Pressure Control (PC) Solenoid Valve an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty line pressure solenoid valve. 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: P0745 2006 Infiniti G35 indicates Line Pressure Solenoid Valve Fault.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty line pressure solenoid valve.
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 3,161

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 Jan 29, 2019

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0745 2006 Infiniti G35 Description

The Pressure Control (PC) Solenoid Valve an electronic pressure regulator that controls transmission line pressure based on current flow through its coil windings. As current flow is increased, the magnetic field produced by the coil moves the solenoid’s plunger further away from the exhaust port. Opening the exhaust port decreases the output fluid pressure regulated by the PC solenoid valve, which ultimately decreases line pressure. The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in response to a signal sent from the Transmission Control Module (TCM).

OBDII Code P0745 2006 Infiniti G35 - Line Pressure Solenoid Valve Fault - AutoCodes.com — P0745 2006 Infiniti G35 Code - Line Pressure Solenoid Valve Fault

What does this mean?

What are the Possible Causes of the DTC P0745 2006 Infiniti G35?

Low transmission fluid level
Dirty transmission fluid
Faulty line pressure solenoid valve
Line pressure solenoid valve harness is open or shorted
Line pressure solenoid valve circuit poor electrical connection

How to Fix the DTC P0745 2006 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

When a transmission solenoid is malfunctioned, in most cases the problem is not the electrical part of the solenoid; the problem is foreign material obstructing the mechanical function of the solenoid or the flow of the fluid through the transmission valve body. If the transmission fluid is dirty, it's recommended to change the transmission fluid and if possible removing the transmission pan for further diagnosis. Excessive debris or metal particles on the transmission pan could be an indication that there is a mechanical transmission failure and that the transmission will need to be rebuilt or replaced.

What is the Cost to Diagnose the Code?

Labor: 1.0

To diagnose the P0745 2006 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 P0745 2006 Infiniti G35 Code

1. What are the common symptoms of OBDII code P0745 in a 2006 Infiniti G35?

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

2. What is the primary cause of the P0745 code in a 2006 Infiniti G35?

- The primary cause is a malfunctioning line pressure solenoid valve within the transmission.

3. How does the line pressure solenoid valve affect the transmission in a 2006 Infiniti G35?

- The line pressure solenoid valve controls the transmission fluid pressure, which is crucial for smooth shifting and overall transmission performance.

4. Can driving with the P0745 code in a 2006 Infiniti G35 cause further damage?

- Continued driving with the P0745 code can potentially lead to further damage to the transmission if not addressed promptly.

5. How can the line pressure solenoid valve be repaired or replaced in a 2006 Infiniti G35?

- The line pressure solenoid valve may need to be replaced by a qualified mechanic, following proper diagnostic procedures.

6. Are there any DIY tips for troubleshooting the P0745 code in a 2006 Infiniti G35?

- While basic troubleshooting steps can be taken, diagnosing and repairing the line pressure solenoid valve issue typically requires specialized tools and expertise.

7. What are the potential risks of ignoring the P0745 code in a 2006 Infiniti G35?

- Ignoring the P0745 code can lead to transmission issues such as increased wear and tear, poor performance, and potential transmission failure.

8. Is it safe to drive a 2006 Infiniti G35 with the P0745 code temporarily?

- It is not recommended to drive the vehicle with the P0745 code for an extended period as it can impact the overall drivability and safety of the vehicle.

9. How can a mechanic diagnose the specific issue related to the line pressure solenoid valve in a 2006 Infiniti G35?

- A mechanic can perform a thorough diagnostic scan using a professional OBDII scanner to pinpoint the exact issue with the line pressure solenoid valve.

10. How much does it typically cost to repair the line pressure solenoid valve fault in a 2006 Infiniti G35?

- The cost of repairing the line pressure solenoid valve fault can vary depending on the extent of the damage, parts needed, and labor costs, but it typically ranges from $300 to $800.