AutoCodes – Toyota – P0746 2016 Toyota RAV4

P0746 2016 Toyota RAV4 Code - Pressure Control Solenoid 'A' Performance

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 'A' valve (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: P0746 2016 Toyota RAV4 indicates Pressure Control Solenoid 'A' Performance.
Common causes: Common causes include Low transmission fluid level, Dirty transmission fluid, Faulty Pressure Control Solenoid 'A' valve (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 580

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 11, 2022

Description
Step-by-Step Diagnostic Guide
Possible Causes
How To Fix
Tech Notes
Cost to Diagnose
FAQs
Comments
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Code P0746 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 P0746 2016 Toyota RAV4 - Pressure Control Solenoid 'A' Performance - AutoCodes.com — P0746 2016 Toyota RAV4 Code - Pressure Control Solenoid 'A' Performance

What does this mean?

What are the Possible Causes of the DTC P0746 2016 Toyota RAV4?

Low transmission fluid level
Dirty transmission fluid
Faulty Pressure Control Solenoid 'A' valve (Shift Solenoid Valve SL1)
Pressure Control Solenoid 'A' valve harness is open or shorted
Pressure Control Solenoid 'A' valve circuit poor electrical connection
Transmission valve body assembly is blocked
Faulty Automatic transaxle assembly

How to Fix the DTC P0746 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 P0746 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 P0746 2016 Toyota RAV4 Code

1. What are common symptoms of OBDII code P0746 in a 2016 Toyota RAV4?

- Common symptoms include harsh shifting, transmission slipping, decreased fuel efficiency, and the Check Engine light illuminating.

2. What does OBDII code P0746 on a 2016 Toyota RAV4 indicate?

- OBDII code P0746 indicates a problem with the Pressure Control Solenoid 'A' performance in the transmission.

3. What are the possible causes of OBDII code P0746 in a 2016 Toyota RAV4?

- Possible causes include a faulty pressure control solenoid 'A', low transmission fluid level, dirty or contaminated transmission fluid, or wiring/connectivity issues.

4. How serious is OBDII code P0746 in a 2016 Toyota RAV4?

- OBDII code P0746 can lead to transmission issues if left unresolved, potentially causing further damage and costly repairs if ignored for an extended period.

5. Can I continue driving my 2016 Toyota RAV4 with OBDII code P0746?

- It is not recommended to continue driving with OBDII code P0746 as it may lead to further damage to the transmission. It is advisable to have the issue diagnosed and repaired promptly.

6. How can I diagnose OBDII code P0746 in my 2016 Toyota RAV4?

- Diagnosing OBDII code P0746 typically involves using a scan tool to retrieve the code, checking the transmission fluid level and condition, and inspecting the pressure control solenoid 'A' and its wiring for any issues.

7. What are the repair options for OBDII code P0746 in a 2016 Toyota RAV4?

- Repair options may include replacing the pressure control solenoid 'A', addressing any transmission fluid issues, repairing or replacing damaged wiring, and clearing the code from the vehicle's computer.

8. How much does it cost to repair OBDII code P0746 in a 2016 Toyota RAV4?

- The cost of repairing OBDII code P0746 can vary depending on the exact cause of the issue, the parts needed for repair, and labor costs. It is advisable to consult a mechanic for a more accurate estimate.

9. Can I reset OBDII code P0746 in my 2016 Toyota RAV4 without fixing the issue?

- While you can clear the code with a scan tool, it is not recommended to reset OBDII code P0746 without addressing the underlying problem, as the issue may persist and cause further damage.

10. How can I prevent OBDII code P0746 from occurring in my 2016 Toyota RAV4?

- Regular maintenance, such as checking and changing transmission fluid as recommended, can help prevent issues like OBDII code P0746. Additionally, addressing any transmission-related symptoms promptly can help avoid more significant problems.