AutoCodes – Toyota – P0798 2014 Toyota RAV4

P0798 2014 Toyota RAV4 Code - Pressure Control Solenoid 'C' Electrical

Quick Answer

Changing from 1st to 6th is performed by the Engine Control Module (ECM) turning shift solenoid valves SL1, SL2, SL3, SL4, and SL on and off. Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Pressure Control Solenoid 'C' valve (Shift 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 2014 Toyota RAV4 indicates Pressure Control Solenoid 'C' Electrical.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Pressure Control Solenoid 'C' valve (Shift 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 443

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 Sep 12, 2022

Description
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0798 2014 Toyota RAV4 Description

Changing from 1st to 6th is performed by the Engine Control Module (ECM) turning shift solenoid valves SL1, SL2, SL3, SL4, and SL on and off. If an open or short circuit occurs in any of the shift solenoid valves, the ECM controls the remaining normal shift solenoid valves to allow the vehicle to be operated.
The ECM commands gear shifts by turning the shift solenoid valves on and off. According to the input shaft speed, intermediate (counter) shaft speed, and output shaft speed, the ECM detects the actual gear (1st, 2nd, 3rd, 4th, 5th or 6th gear). When the gear commanded by the ECM and the actual gear are not the same, the ECM illuminates the MIL and stores the Diagnostic Trouble Code (DTC).

OBDII Code P0798 2014 Toyota RAV4 - Pressure Control Solenoid 'C' Electrical - AutoCodes.com — P0798 2014 Toyota RAV4 Code - Pressure Control Solenoid 'C' Electrical

What does this mean?

What are the Possible Causes of the DTC P0798 2014 Toyota RAV4?

Low transmission fluid level
Dirty transmission fluid
Faulty Pressure Control Solenoid 'C' valve (Shift Solenoid Valve SL3)
Pressure Control Solenoid 'C' valve harness is open or shorted
Pressure Control Solenoid 'C' valve circuit poor electrical connection
Faulty Engine Control Module (ECM)

How to Fix the DTC P0798 2014 Toyota RAV4?

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 malfunction, 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, remove 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 2014 Toyota RAV4 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 2014 Toyota RAV4 Code

1. What are the common symptoms of OBDII code P0798 in a 2014 Toyota RAV4?

- Common symptoms include harsh shifting, transmission slipping, poor fuel efficiency, and illuminated Check Engine Light.

2. What does OBDII code P0798 indicate in a 2014 Toyota RAV4?

- OBDII code P0798 indicates a problem with the Pressure Control Solenoid 'C' electrical circuit in the transmission.

3. What are the possible causes of OBDII code P0798 in a 2014 Toyota RAV4?

- Possible causes include a faulty pressure control solenoid 'C', wiring issues, low transmission fluid level, or a malfunctioning transmission control module.

4. How can I diagnose the Pressure Control Solenoid 'C' electrical issue causing OBDII code P0798 in my 2014 Toyota RAV4?

- Diagnose by checking the wiring for damage, testing the pressure control solenoid 'C' for proper operation, and ensuring the transmission fluid level is adequate.

5. Can I continue driving my 2014 Toyota RAV4 with OBDII code P0798 present?

- It is not recommended to continue driving with OBDII code P0798 as it can lead to further transmission damage and potentially unsafe driving conditions.

6. How can I repair OBDII code P0798 in my 2014 Toyota RAV4?

- Repair involves replacing the faulty Pressure Control Solenoid 'C', repairing any damaged wiring, and clearing the error code with a diagnostic tool.

7. Are there any DIY tips for resolving OBDII code P0798 in a 2014 Toyota RAV4?

- DIY tips include checking and cleaning the electrical connectors, ensuring proper transmission fluid levels, and inspecting for visible wiring issues before seeking professional help.

8. What are the consequences of ignoring OBDII code P0798 in a 2014 Toyota RAV4?

- Ignoring OBDII code P0798 can lead to transmission failure, reduced fuel efficiency, and potentially costly repairs if left unresolved.

9. How long does it typically take to repair OBDII code P0798 in a 2014 Toyota RAV4?

- Repair time can vary depending on the exact cause of the issue, but it may take a few hours to a day for a professional mechanic to diagnose and fix the problem.

10. Is OBDII code P0798 a common issue in 2014 Toyota RAV4 vehicles?

- While not extremely common, issues with the Pressure Control Solenoid 'C' leading to OBDII code P0798 can occur in 2014 Toyota RAV4 vehicles, especially with aging or high-mileage transmissions.