AutoCodes – Toyota – P0748 2007 Toyota Camry

P0748 2007 Toyota Camry Code - Pressure Control Solenoid 'A' Electrical Shift Solenoid Valve SL1

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 Dirty transmission fluid, Low transmission fluid level, Shift Solenoid Valve SL1. 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: P0748 2007 Toyota Camry indicates Pressure Control Solenoid 'A' Electrical Shift Solenoid Valve SL1.
Common causes: Common causes include Dirty transmission fluid, Low transmission fluid level, Shift Solenoid Valve SL1.
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 9,017

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
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0748 2007 Toyota Camry 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 P0748 2007 Toyota Camry - Pressure Control Solenoid 'A' Electrical Shift Solenoid Valve SL1 - AutoCodes.com — P0748 2007 Toyota Camry Code - Pressure Control Solenoid 'A' Electrical Shift Solenoid Valve SL1

What does this mean?

What are the Possible Causes of the DTC P0748 2007 Toyota Camry?

Dirty transmission fluid
Low transmission fluid level
Shift Solenoid Valve SL1
Shift Solenoid Valve SL1 harness is open or shorted
Shift Solenoid Valve SL1 circuit poor electrical connection
ECM

How to Fix the DTC P0748 2007 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 P0748 2007 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 P0748 2007 Toyota Camry Code

1. What are the common symptoms of OBDII code P0748 in a 2007 Toyota Camry?

The common symptoms of code P0748 in a 2007 Toyota Camry include harsh shifting, transmission slipping, and the transmission going into "limp mode."

2. What does the Pressure Control Solenoid 'A' Electrical Shift Solenoid Valve SL1 do in a 2007 Toyota Camry?

The Pressure Control Solenoid 'A' Electrical Shift Solenoid Valve SL1 is responsible for controlling the hydraulic pressure inside the transmission, which helps regulate gear shifting.

3. What are the possible causes of OBDII code P0748 in a 2007 Toyota Camry?

Possible causes of code P0748 in a 2007 Toyota Camry include a faulty pressure control solenoid 'A', wiring issues, low transmission fluid level, or a defective transmission control module.

4. How can I diagnose the Pressure Control Solenoid 'A' Electrical Shift Solenoid Valve SL1 in a 2007 Toyota Camry?

Diagnosing the Pressure Control Solenoid 'A' involves using a scan tool to check for codes, performing a visual inspection of the wiring, and conducting a solenoid resistance test.

5. Can I still drive my 2007 Toyota Camry with OBDII code P0748?

It is not recommended to drive your 2007 Toyota Camry with code P0748 as it can lead to further transmission damage and potential safety hazards.

6. How can I repair OBDII code P0748 in my 2007 Toyota Camry?

Repairing code P0748 may involve replacing the Pressure Control Solenoid 'A', repairing any damaged wiring, ensuring the transmission fluid level is correct, and resetting the trouble codes.

7. Will resetting the OBDII code P0748 in my 2007 Toyota Camry fix the issue?

Resetting the code may temporarily turn off the check engine light, but it will not fix the underlying issue causing code P0748 in your 2007 Toyota Camry.

8. How much does it cost to repair OBDII code P0748 in a 2007 Toyota Camry?

The cost of repairing code P0748 in a 2007 Toyota Camry can vary depending on the exact cause of the issue, but it may range from a few hundred to over a thousand dollars.

9. Can a DIY enthusiast fix OBDII code P0748 in a 2007 Toyota Camry?

Depending on your level of expertise, you may be able to diagnose and repair code P0748 in your 2007 Toyota Camry. However, some repairs may require specialized tools and skills best left to a professional.

10. How long does it take to repair OBDII code P0748 in a 2007 Toyota Camry?

The repair time for code P0748 in a 2007 Toyota Camry can vary based on the specific issue, but it may take a few hours to a full day for a professional mechanic to diagnose and fix the problem.