AutoCodes – Toyota – P0798 2007 Toyota Camry

P0798 2007 Toyota Camry Code - Pressure Control Solenoid 'C' Electrical Valve SL3

Quick Answer

Shifting from 1st to 5th is performed in combination with ON and OFF operation of the shift solenoid valves SL1, SL2, SL3, S4 and SR which are controlled by the Engine Control Module (ECM). Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty pressure control solenoid valve SL3. 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: P0798 2007 Toyota Camry indicates Pressure Control Solenoid 'C' Electrical Valve SL3.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty pressure control solenoid valve SL3.
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 8,291

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 P0798 2007 Toyota Camry Description

Shifting from 1st to 5th is performed in combination with ON and OFF operation of the shift solenoid valves SL1, SL2, SL3, S4 and SR which are controlled by the Engine Control Module (ECM). If an open or short circuit occurs in either of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be operated smoothly (Fail Safe Function).

OBDII Code P0798 2007 Toyota Camry - Pressure Control Solenoid 'C' Electrical Valve SL3 - AutoCodes.com — P0798 2007 Toyota Camry Code - Pressure Control Solenoid 'C' Electrical Valve SL3

What does this mean?

What are the Possible Causes of the DTC P0798 2007 Toyota Camry?

Low transmission fluid level
Dirty transmission fluid
Faulty pressure control solenoid valve SL3
Pressure control solenoid valve SL3 harness is open or shorted
Pressure control solenoid valve SL3 circuit poor electrical connection

How to Fix the DTC P0798 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 P0798 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 P0798 2007 Toyota Camry Code

1. What does OBDII code P0798 mean on a 2007 Toyota Camry?

Code P0798 indicates an electrical issue with the Pressure Control Solenoid 'C' (Valve SL3) in the transmission, which regulates hydraulic pressure for proper shifting.

2. What are the common symptoms of code P0798 in a 2007 Toyota Camry?

Symptoms may include harsh or delayed shifting, slipping transmission, poor fuel efficiency, or the vehicle going into limp mode. The check engine light will also be illuminated.

3. What causes code P0798 in a 2007 Toyota Camry?

Common causes include a faulty pressure control solenoid, damaged or corroded wiring, a bad connection in the solenoid circuit, or a malfunctioning transmission control module (TCM).

4. Can I drive my 2007 Toyota Camry with code P0798?

Driving with this code is not recommended as it may cause further damage to the transmission and lead to unsafe driving conditions.

5. How is code P0798 diagnosed?

A mechanic will use an OBDII scanner to confirm the code, inspect the transmission wiring and connectors, test the pressure control solenoid's resistance, and check for proper operation of the TCM.

6. How do I fix code P0798 on a 2007 Toyota Camry?

Repairs may involve replacing the pressure control solenoid, repairing or replacing damaged wiring or connectors, or reprogramming/repairing the TCM if necessary.

7. How much does it cost to repair code P0798 in a 2007 Toyota Camry?

Repair costs can range from $200 to $600, depending on whether the solenoid needs replacement or wiring repairs are required. TCM replacement or reprogramming may cost more.

8. What tools are needed to fix code P0798?

Essential tools include an OBDII scanner, a multimeter to check electrical connections, basic hand tools for solenoid replacement, and possibly a transmission fluid pressure tester.

9. Can low transmission fluid cause code P0798?

Low or dirty transmission fluid can indirectly contribute to this code by affecting solenoid operation, so itâ€™s important to check and maintain proper fluid levels.

10. Is it necessary to replace the transmission fluid when fixing code P0798?

While not always required, replacing the transmission fluid and filter is recommended to ensure optimal solenoid function and prevent future issues.