P0936 OBD-II Trouble Code: Hydraulic Pressure Sensor Circuit Intermittent

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

SCHEDULE P0936 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0936 code

P0936 is a diagnostic trouble code (DTC) for "Hydraulic Pressure Sensor Circuit Intermittent". 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 P0936 DIAGNOSTIC Get a fair and transparent estimate upfront

diagnostic check engine light

P0936 code definition

The P0936 trouble code notes an intermittent circuit error in the hydraulic pressure sensor.

What the P0936 code means

The P0936 code is a generic OBD-II trouble code that detects a problem with the hydraulic pressure sensor circuit. The purpose of the hydraulic pressure system is to provide power to help the automatic transmission shift gears. Each gear has a hydraulic circuit associated with it, and when the vehicle calls for an upshift or a downshift, the different hydraulic circuits will engage or disengage to make the shift happen. This is all controlled by the powertrain control module (PCM) and transmission control module (TCM), which calculate the proper shift strategy by accounting for various different engine factors and conditions. The PCM then monitors the hydraulic pressure by receiving data from the hydraulic pressure sensors. If the PCM receives an abnormal signal, or no signal at all from the hydraulic pressure sensors, then the P0936 trouble code may be stored.

What causes the P0936 code?

The P0936 trouble code is almost always the result of damaged electrical components. This can include blown fuses, corroded cables, short or open wires, or a loss of ground. Other potential causes of the code are a defective hydraulic pressure sensor, and a faulty PCM or TCM.

What are the symptoms of the P0936 code?

When the P0936 trouble code is detected, the check engine soon warning light will likely illuminate on the vehicle’s instrument panel. Transmission problems are usually evident, such as the failure to shift into certain gears (which can result in slow acceleration or excessive engine speed), and harsh shifting. Most vehicles will also experience reduced fuel efficiency.

How does a mechanic diagnose the P0936 code?

The P0936 code will be diagnosed with a standard OBD-II trouble code scanner. A trained technician will use the scanner to view the freeze frame data and assess the P0936 code. The scanner will also be used to check for the presence of any other trouble codes, as codes should always be addressed in the order in which they appear. The codes will then need to be reset, and the vehicle restarted, so the mechanic can see if the P0936 code returns. If it does not, then an erroneous trigger or an intermittent error are likely to blame.

If the code does return, then the mechanic will begin by visually inspecting the electrical components in the hydraulic pressure sensor system, and replacing any that are damaged. Next, the ground voltage should be checked, and then the mechanic can perform an inspection on the hydraulic pressure sensor. If no issue is found, a thorough inspection of the PCM and TCM will be required.

When any component is repaired or replaced, the mechanic will need to reset the codes, restart the vehicle, and again check to see if the P0936 code remains detected. By doing this, the technician will know when the issue is resolved.

Common mistakes when diagnosing the P0936 code?

The most commonly made mistake when diagnosing this code comes from not properly following the OBD-II diagnosis protocol. The protocol should always be followed exactly, to ensure that diagnoses and repairs are thorough and efficient.

It is fairly common for hydraulic pressure sensors to be replaced erroneously, when an electrical component was the only problem in the system.

How serious is the P0936 code?

In most cases, a vehicle with a P0936 code can still be driven, though there may be drivability issues. If the code is not addressed, severe damage can be done to the transmission, so an inspection should be scheduled as soon as the code is detected.

What repairs can fix the P0936 code?

Repairs for the P0936 trouble code are:

Additional comments for consideration regarding the P0936 code

It is very uncommon for the P0936 code to be the result of a defective PCM or TCM, so all other options should be checked before control module failure is assumed. If the PCM or TCM does need to be replaced, then a reprogramming will be required.

Need help with a P0936 code?

YourMechanic offers certified mobile mechanics who will come to your home or office to diagnose and repair your vehicle. Get a quote and book an appointment online or speak to a service advisor at 1-800-701-6230.

trouble codes
OBD-II
P0936

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

SCHEDULE P0936 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

3,484

Rating Summary
3,176
153
40
23
92
3,176
153
40
23
92

Richard

10 years of experience
415 reviews
Richard
10 years of experience
This is the second time I’ve had Richard work on my car. He always does an outstanding job and is quick, knowledgeable and professional. Highly recommended!!
2012 DODGE CHALLENGER - CHECK ENGINE LIGHT IS ON - LAS VEGAS, NEVADA

Michael

13 years of experience
372 reviews
Michael
13 years of experience
Mike was an absolute professional when he arrived. He walked me thru the whole process of my repairs and also made good recommendations for preventive issues. His mechanical knowledge and good customer services was a breath of air and greatly appreciated :-)
2007 CHEVROLET AVALANCHE - CHECK ENGINE LIGHT IS ON INSPECTION - MARIETTA, GEORGIA

Rodrigo

10 years of experience
85 reviews
Rodrigo
10 years of experience
Rodrigo was exactly on time, very professional and friendly. He assessed my car, let me know the exact problem when a previous mechanic from a shop in my area was unable to. I felt he was very honest and sincere letting me know the level of urgency that I deal with the issue. Absolutely no pressure. I will absolutely use Rodrigo the next time I need anything to do with my car and will tell everyone about him. This is such a great service, I will never go to another mechanic again. It is so convenient. I couldn’t be happier. :)
2013 SMART FORTWO - CHECK ENGINE LIGHT IS ON - LAS VEGAS, NEVADA

Ricardo

8 years of experience
223 reviews
Ricardo
8 years of experience
Great service and was very helpful on what maintenance my vehicle needed and what to expect in the future. Would definitely recommend to anyone and will.
2004 MITSUBISHI LANCER - CHECK ENGINE LIGHT IS ON - LOS ANGELES, CALIFORNIA

More related articles

P0121 OBD-II Trouble Code: TPS "A" Circuit Range Performance Problem
P0121 code definition Throttle Pedal Position Sensor/Switch (TPS) A Circuit Range Performance Problem...
How to Transfer a Car Title in Idaho
In order to prove ownership of a car, you must have the title. However, when a car is sold, given away or inherited, the title needs...
Rules of the Road For Iowa Drivers
Driving on the roads requires knowledge of the rules, many of which are based on common sense and courtesy. However, even though you know the rules in...

Related questions

Q: P2006 code is present in the computer.

Hi there. With having the code P2006 present, check the intake wiring to the runner control and see if there is a good connection. Also, the runners in the intake could be clogged and needs cleaned out. A leaking or...

Q: Does the OBD System Measure Gases in the Car's Exhaust?

The onboard diagnostic (OBD) system utilizes sensors mounted in the engine exhaust stream to measure the amount of oxygen that comes out of the engine after the combustion process. When an engine intakes a certain amount of air into the...

Q: Had new Mass airflow sensor put on an now I'm getting a code p0171 what could it be

This relates to a lean fuel condition which can be caused by many different things such as: Intake air leaks Faulty front heated oxygen sensor Ignition misfiring Faulty fuel injectors Exhaust gas leaks Incorrect fuel pressure Lack of fuel...

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