P0746 Toyota 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 Toyota 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.
Code P0746 Toyota Description
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).
What are the Possible Causes of the DTC P0746 Toyota?
- 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 Toyota?
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.
Code Tech Notes
User Submitted Video
What is the Cost to Diagnose the Code?
Labor: 1.0
To diagnose the P0746 Toyota 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.
Need more information about the P0746 Toyota code?
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Information for Specific Toyota Models
- P0746 2006 Toyota Camry — Pressure Control Solenoid 'A' Performance
- P0746 2007 Toyota Camry — Pressure Control Solenoid 'A' Performance
- P0746 2008 Toyota Camry — Pressure Control Solenoid 'A' Performance
- P0746 2009 Toyota Camry — Pressure Control Solenoid 'A' Performance
- P0746 2010 Toyota Camry — Pressure Control Solenoid 'A' Performance
- P0746 2011 Toyota Camry — Pressure Control Solenoid 'A' Performance
- P0746 2013 Toyota RAV4 — Pressure Control Solenoid 'A' Performance
- P0746 2014 Toyota RAV4 — Pressure Control Solenoid 'A' Performance
- P0746 2015 Toyota RAV4 — Pressure Control Solenoid 'A' Performance
- P0746 2016 Toyota RAV4 — Pressure Control Solenoid 'A' Performance
- P0746 2017 Toyota RAV4 — Pressure Control Solenoid 'A' Performance
- P0746 2018 Toyota RAV4 — Pressure Control Solenoid 'A' Performance
Frequently Asked Questions about P0746 Toyota Code
What does the OBDII code P0746 mean on a Toyota?
P0746 indicates an issue with the Pressure Control Solenoid 'A' in your Toyota's transmission, specifically related to its performance or operation.
What are the common symptoms of code P0746 in a Toyota?
Common symptoms include harsh or erratic shifting, transmission slipping, poor fuel economy, and the activation of the Check Engine Light.
What causes the P0746 code to appear in a Toyota?
Possible causes include a faulty pressure control solenoid, dirty or low transmission fluid, clogged transmission fluid passages, or internal transmission damage.
Can I drive my Toyota with the P0746 code?
It is not recommended to drive for long with this code, as it can lead to further transmission damage and unsafe driving conditions.
How do I fix the P0746 code on a Toyota?
Repairs may involve replacing the pressure control solenoid, flushing or refilling transmission fluid, repairing wiring issues, or addressing internal transmission damage.
What is the function of the pressure control solenoid in a Toyota transmission?
The pressure control solenoid regulates hydraulic fluid pressure to ensure smooth and accurate gear shifting in the transmission.
How do you diagnose the P0746 code in a Toyota?
Diagnosis typically involves scanning for codes, inspecting the transmission fluid condition, testing the solenoid, and checking for wiring or connector issues.
Is a faulty pressure control solenoid expensive to replace in a Toyota?
The cost depends on the model and labor rates, but replacing a pressure control solenoid typically ranges from $150 to $400.
Can low or dirty transmission fluid cause the P0746 code in a Toyota?
Yes, low or contaminated transmission fluid can lead to solenoid performance issues and trigger the P0746 code.
How can I prevent the P0746 code from occurring in my Toyota?
Regular transmission fluid changes, proper maintenance, and addressing transmission issues promptly can help prevent this code.
Discuss the causes and fixes for P0746 Toyota OBDII Code
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