AutoCodes – Toyota – P0798 2016 Toyota RAV4

P0798 2016 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 2016 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 1,321

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 2016 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 2016 Toyota RAV4 - Pressure Control Solenoid 'C' Electrical - AutoCodes.com — P0798 2016 Toyota RAV4 Code - Pressure Control Solenoid 'C' Electrical

What does this mean?

What are the Possible Causes of the DTC P0798 2016 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 2016 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 2016 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 2016 Toyota RAV4 Code

1. What are the common symptoms of OBDII code P0798 in a 2016 Toyota RAV4?

The common symptoms may include harsh shifting, transmission slippage, decreased fuel efficiency, and the vehicle going into limp mode.

2. What does the OBDII code P0798 for a 2016 Toyota RAV4 indicate?

Code P0798 indicates a problem with the Pressure Control Solenoid 'C' circuit, specifically an electrical issue.

3. What are the possible causes of OBDII code P0798 in a 2016 Toyota RAV4?

Possible causes include a faulty pressure control solenoid 'C', damaged wiring or connectors in the solenoid circuit, low transmission fluid level, or a malfunctioning transmission control module.

4. How serious is OBDII code P0798 in a 2016 Toyota RAV4?

Code P0798 should be addressed promptly as it can lead to further transmission damage if left unresolved. It is recommended to have the issue diagnosed and repaired by a qualified mechanic.

5. Can I drive my 2016 Toyota RAV4 with OBDII code P0798?

It is not advisable to drive the vehicle with code P0798 as it can cause further damage to the transmission. It is recommended to have the issue diagnosed and fixed before driving the vehicle again.

6. How can I diagnose OBDII code P0798 in my 2016 Toyota RAV4?

Diagnosing code P0798 typically involves using an OBDII scanner to retrieve the code, checking the transmission fluid level and condition, and inspecting the pressure control solenoid 'C' and its circuit for any visible damage.

7. How can I repair OBDII code P0798 in my 2016 Toyota RAV4?

Repair options may include replacing the pressure control solenoid 'C', repairing or replacing damaged wiring or connectors, ensuring the transmission fluid is at the correct level, and resetting the trouble code.

8. Can a DIY enthusiast fix OBDII code P0798 in a 2016 Toyota RAV4?

While some DIY enthusiasts may have the skills to address code P0798, it is recommended to consult a professional mechanic for accurate diagnosis and proper repair to prevent further damage.

9. How much does it cost to repair OBDII code P0798 in a 2016 Toyota RAV4?

The cost of repairing code P0798 can vary depending on the underlying issue, parts needed, and labor costs. It is advisable to get a few quotes from different repair shops to compare prices.

10. How can I prevent OBDII code P0798 in my 2016 Toyota RAV4?

Regular maintenance, such as checking and changing transmission fluid as recommended, can help prevent issues like code P0798. Additionally, addressing any transmission problems promptly can help prevent further damage.