P0746 OBD-II Trouble Code: Pressure Control Solenoid Performance or Stuck Off

Our certified mechanics come to you · 12-month, 12,000-mile warranty

SCHEDULE P0746 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0746 code

P0746 is a diagnostic trouble code (DTC) for "Pressure Control Solenoid Performance or Stuck Off". This can happen for multiple reasons and a mechanic needs to diagnose the specific cause for this code to be triggered in your situation. Our certified mobile mechanics can come to your home or office to perform the Check Engine Light diagnostic for $70.00. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $30.00 off as a credit towards the repair. All our repairs are backed by our 12-month / 12,000-mile warranty.

Cars Estimate Credit towards follow-up repair Earliest Availability
Ford$70.00$30.00
Toyota$70.00$30.00
BMW$70.00$30.00
SCHEDULE P0746 DIAGNOSTIC Get a fair and transparent estimate upfront

check engine light

P0746 code definition

The P0746 code appears when the PCM detects an irregularity in the electronic pressure control solenoid circuit.

What the P0746 code means

With an automatic transmission, varying amounts of hydraulic pressure are used to provide torque converter lockup and shift actuation. The exact degree of pump pressure that’s considered sufficient will differ across every make and model – often by a lot. That’s because the amount required is based on things like vehicle speed, engine speed, engine load and throttle position.

Nonetheless, code P0746 will occur when the required amount of fluid pressure doesn’t match the actual amount that is detected by the vehicle’s PCM. Usually, a Check Engine Light will come on too, but this is another element that differs across all makes and models. For some, this type of incident has to repeat more than once before the light will come on.

What causes the P0746 code?

The P0746 code could be caused by any of the following:

What are the symptoms of the P0746 code?

There are no set symptoms that always occur in regards to the P0746. In fact, some drivers don’t report any noticeable symptoms at all. Other drivers will have to put up with the torque converter clutch not engaging/disengaging. Their ability to shift may also be greatly limited or even disabled altogether. When the engine idles or is coming to a stop, it could stall out.

Other common symptoms include:

A number of other trouble codes are associated with P0746. These codes are related to issues with things like converter clutch, shift solenoid, gear ratio, etc.

How does a mechanic diagnose the P0746 code?

An OBD-II scanner will first be used by your mechanic to figure out which codes have been stored. Then, they’ll check on the transmission pressure present. After that, they’ll look at the transmission fluid for signs it’s contaminated (or just that more is needed). If the fluid smells like it has burned, they’ll need to inspect the transmission pan.

Your mechanic will also want to look at all the wires that assist the pressure control solenoid. Other electrical components, like the connectors, will be important to inspect too. The high pressure pump will need to go through examination as well.

Common mistakes when diagnosing the P0746 code

Although it’s important to inspect, the high pressure pump is too often blamed for the entire code and thus replaced hastily without enough thought being given to the process. Instead, wiring malfunctions and faulty electronic pressure control solenoids are far more likely to be responsible for a P0746 code. This should serve as a reminder to carry out a thorough diagnosis before proceeding with any permanent measures.

How serious is the P0746 code?

The code doesn’t necessarily represent anything dangerous or a problem that will seriously damage your vehicle if it isn’t addressed right away. However, as you’ll notice from the symptoms above, it’s possible that your transmission may eventually overheat or your clutch won’t engage. These could have expensive ramifications and, if nothing else, may lead to much worse problems down the line, so it’s a good idea to have this code dealt with ASAP.

What repairs can fix the P0746 code?

The following may be necessary to repair your vehicle:

  • Replace/repair a defective pump
  • Adjust the transmission fluid level
  • Replace contaminated transmission fluid
  • Replace the faulty line pressure solenoid valve
  • Fix the electrical connection to the line pressure solenoid valve circuit

Additional comments for consideration regarding the P0746 code

As a number of other codes may accompany this one, it’s important that you deal with them in the order they were stored so you don’t miss anything.

Need help with a P0746 code?

If your vehicle needs repairs, let YourMechanic Help. Just complete this online form or call us up at 1-800-701-6230. We’ll give you a free quote and send a certified mechanic to your place of work or home – whichever is most convenient.

trouble codes
Check Engine Light
P0746

Fast and easy Check Engine Light is on Inspection service at your home or office.

SCHEDULE P0746 DIAGNOSTIC
Get a fair and transparent estimate upfront

Recent Check Engine Light is on Inspection reviews

Excellent Rating


YourMechanic Check Engine Light is on Inspection Service

Average Rating

4.5/5

Number of Reviews

3,788

Rating Summary
3,460
163
43
24
98
3,460
163
43
24
98

James

27 years of experience
331 reviews
James
27 years of experience
James is absolutely amazing...He did a Tune up & diagnostic for the check engine light on my 2005 Infiniti. Not only was he on time and very professional, but he made everything very easy to understand and gave me options that fit my budget for dealing with, what turned out to be an oil leak.. i hate when mechanics hit me with a bunch of terms and responses that the average person who knows nothing about cars wouldn't understand..And then pressure you into paying top dollar for problems they claim to be imminent... James is very down-to-earth and I will definitely be requesting him and/or the services of your mechanic for now on. P.S. Meineke wanted to charge me $300 more for the same exact service
2005 INFINITI G35 - CHECK ENGINE LIGHT IS ON - ORLANDO, FLORIDA

Jamahl

17 years of experience
703 reviews
Jamahl
17 years of experience
Did a great job. Thank you.
2006 VOLKSWAGEN PASSAT - CHECK ENGINE LIGHT IS ON - ORLANDO, FLORIDA

Chris

19 years of experience
1240 reviews
Chris
19 years of experience
Very knowledgable and nice. Deff recommend Chris.
2006 AUDI A4 - CHECK ENGINE LIGHT IS ON - ORANGE, CALIFORNIA

Patrick

30 years of experience
865 reviews
Patrick
30 years of experience
Patrick was great: On time, clear about the issues, and polite. I will book him for follow-on work.
2007 MAZDA 5 - CHECK ENGINE LIGHT IS ON - AUSTIN, TEXAS

More related articles

P2159 OBD-II Trouble Code: Vehicle Speed Sensor B Range/Performance
Diagnostic Trouble Code (DTC): P2159 P2159 code definition Vehicle Speed Sensor B Range/Performance...
P2428 OBD-II Trouble Code: Exhaust Gas Temperature Too High Bank 1
P2428 code definition A P2428 trouble code signifies that the PCM has detected a problem in the exhaust gas temperature sensor circuit in bank 1, which subsequently contains the number one...
P0291OBD-II Trouble Code: Cylinder 11 Injector Circuit Low
P0291 code definition When your vehicle’s PCM registers the P0291 code, it means that a voltage reading came from the fuel injector circuit – for cylinder number 11’s fuel injector –...

Related questions

Q: check engine light code p0068

The definition for the code P0068 is throttle body airflow performance. A few more things will have to be checked as this code can come from a failing sensor that is offering the computer improper signals. Consider hiring one of...

Q: My compressor went out. Will that cause my engine to not operate?

Hello. If you have an engine that is cranking but not starting, then you need to look on dashboard to see if the theft light is flashing first. If it is, then try a different key to see if that...

Q: Car is throwing trouble code P0746 and it is a solenoid valve problem.

This code relates to the pressure control solenoid that regulates the pressure of the transmission fluid flowing in and out of the valve body inside the transmission. Generally, this is usually related to some kind of foreign material that gets...

How can we help?

Our service team is available 7 days a week, Monday - Friday from 6 AM to 5 PM PST, Saturday - Sunday 7 AM - 4 PM PST.

1-800-701-6230 · hi@yourmechanic.com