AutoCodes – Toyota – P0746 2009 Toyota Camry

P0746 2009 Toyota Camry Code - Pressure Control Solenoid 'A' Performance

Quick Answer

The Pressure Control (PC) Solenoid Valve is 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, Shift Solenoid Valve SL Remains Closed Or Open. 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: P0746 2009 Toyota Camry indicates Pressure Control Solenoid 'A' Performance.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Shift Solenoid Valve SL Remains Closed Or Open.
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 6,277

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 Mar 28, 2024

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0746 2009 Toyota Camry Description

The Pressure Control (PC) Solenoid Valve is 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). The Diagnostic Trouble Code (DTC) will be set when the gear required by the Engine Control Module (ECM) does not match the actual gear when driving.

OBDII Code P0746 2009 Toyota Camry - Pressure Control Solenoid 'A' Performance - AutoCodes.com — P0746 2009 Toyota Camry Code - Pressure Control Solenoid 'A' Performance

What does this mean?

What are the Possible Causes of the DTC P0746 2009 Toyota Camry?

Low transmission fluid level
Dirty transmission fluid
Shift Solenoid Valve SL Remains Closed Or Open
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 P0746 2009 Toyota Camry?

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 P0746 2009 Toyota Camry 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 P0746 2009 Toyota Camry Code

What does OBDII code P0746 mean on a 2009 Toyota Camry?

1. P0746 indicates a problem with the Pressure Control Solenoid 'A' in the transmission, specifically related to its performance or operation. 2.

What are the common symptoms of code P0746 in a 2009 Toyota Camry?

Symptoms may include harsh or delayed shifting, slipping gears, reduced fuel efficiency, or the vehicle going into "limp mode." 3.

What causes the P0746 code to appear in a Toyota Camry?

Common causes include a faulty pressure control solenoid, dirty or contaminated transmission fluid, wiring or connectivity issues, or a malfunctioning transmission valve body. 4.

Can driving with a P0746 code damage my 2009 Toyota Camry?

Yes, continuing to drive with this code can cause further damage to the transmission and lead to more expensive repairs. It's best to address the issue promptly. 5.

How do I diagnose the P0746 code on my Toyota Camry?

Diagnosis involves checking the transmission fluid condition, inspecting the wiring and connectors for damage, and testing the solenoid's electrical resistance or operation. 6.

How much does it typically cost to fix a P0746 code on a 2009 Toyota Camry?

Repair costs vary but can range from $200 to $500 for solenoid replacement, while more extensive repairs like a valve body replacement can cost upwards of $1,000. 7.

Can low transmission fluid cause the P0746 code in a Toyota Camry?

Yes, low or contaminated transmission fluid can impact solenoid performance and trigger the P0746 code. 8.

Is replacing the pressure control solenoid the only fix for a P0746 code?

Not always. Depending on the cause, fixes could include flushing and replacing the transmission fluid, repairing wiring, or addressing issues with the valve body. 9.

How can I prevent the P0746 code from occurring in my Toyota Camry?

Regularly check and maintain transmission fluid levels and quality, and address transmission issues promptly to prevent solenoid failures. 10.

Do I need a professional mechanic to fix the P0746 code on my 2009 Toyota Camry?

While DIY repairs are possible for experienced individuals, diagnosing and fixing transmission issues often requires specialized tools and expertise, so consulting a professional is recommended.