AutoCodes – Toyota – P0748 2008 Toyota Camry

P0748 2008 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 2008 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 4,524

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 2008 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 2008 Toyota Camry - Pressure Control Solenoid 'A' Electrical Shift Solenoid Valve SL1 - AutoCodes.com — P0748 2008 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 2008 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 2008 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 2008 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 2008 Toyota Camry Code

1. What are the common symptoms of OBDII code P0748 in a 2008 Toyota Camry?

- Common symptoms include harsh shifting, transmission slipping, and the Check Engine Light illuminating on the dashboard.

2. What does the OBDII code P0748 on a 2008 Toyota Camry indicate?

- OBDII code P0748 points to a fault in the Pressure Control Solenoid 'A' Electrical Shift Solenoid Valve SL1 in the transmission system.

3. What are the possible causes of OBDII code P0748 in a 2008 Toyota Camry?

- Common causes include a faulty shift solenoid, low transmission fluid level, wiring issues, or a malfunctioning transmission control module.

4. How can I diagnose the issue related to OBDII code P0748 in my 2008 Toyota Camry?

- Diagnosing the problem may involve checking the transmission fluid level, inspecting the wiring harness, testing the shift solenoid, and using a scan tool to read live data.

5. Can I continue driving my 2008 Toyota Camry with OBDII code P0748?

- It is not recommended to drive the vehicle with this code present, as it can lead to further damage to the transmission system.

6. Is it possible to repair OBDII code P0748 in a 2008 Toyota Camry myself?

- While some DIY enthusiasts may attempt to address this issue, it is advisable to seek professional help due to the complexity of the transmission system.

7. How much does it typically cost to repair OBDII code P0748 in a 2008 Toyota Camry?

- The cost of repair can vary depending on the extent of the issue, but it may range from a few hundred to over a thousand dollars including parts and labor.

8. Can a transmission flush or fluid change resolve OBDII code P0748 in a 2008 Toyota Camry?

- In some cases, a transmission flush or fluid change may help if the problem is related to low fluid levels or degraded transmission fluid.

9. What are the long-term implications of ignoring OBDII code P0748 in a 2008 Toyota Camry?

- Ignoring this code can lead to further transmission issues, potentially resulting in costly repairs or even transmission failure.

10. How can I prevent OBDII code P0748 from recurring in my 2008 Toyota Camry?

- Regular maintenance, timely transmission fluid changes, and addressing any related issues promptly can help prevent the recurrence of this OBDII code.