P0523 OBD-II Trouble Code: Engine Oil Pressure Sensor/Switch High Voltage

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

SCHEDULE P0523 DIAGNOSTIC Get a fair and transparent estimate upfront
Red-stars EXCELLENT RATING ON

Cost of diagnosing the P0523 code

P0523 is a diagnostic trouble code (DTC) for "Engine Oil Pressure Sensor/Switch High Voltage". 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 $69.99. Once we are able to diagnose the problem, you will be provided with an upfront quote for the recommended fix and receive $20.00 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$69.99$20.00
Toyota$69.99$20.00
BMW$69.99$20.00
SCHEDULE P0523 DIAGNOSTIC Get a fair and transparent estimate upfront

check engine light

P0523 code definition

The P0523 Trouble Code is an indicator that there is an issue with the engine oil pressure sensor/high switch voltage.

What the P0523 code means

This code means that the Powertrain Control Module, or PCM, finds that the engine oil pressure sender/sensor is too high. The cause could be mechanical or electrical. Most of the time, the issues fall into the electrical category.

What causes the P0523 code?

Some of the possible causes for the P0523 code to appear include the following:

What are the symptoms of the P0523 code?

Some of the most common symptoms for this type of code include the Check Engine Light, and/or the low engine oil pressure light coming on and usually staying on. You may also notice that the oil pressure gauge reading is higher than usual. In some cases, the vehicle might suffer from catastrophic engine failure.

How does a mechanic diagnose the P0523 code?

The mechanic can use several tools to help diagnose this problem. They will use an OBD-II scanner to gather data from the vehicle. They will also use a digital voltmeter, and a manual oil pressure gauge. These tools can give them a much better idea of what’s happening in the vehicle.

Common mistakes when diagnosing the P0523 code

One of the biggest mistakes that someone can make when they are trying to diagnose the P0523 code is believing that the problem lies only in the sensor and not in the engine. If the mechanic only changes out the sensor, and doesn’t actually follow through and look at the engine to determine what could be causing the issues with the oil pressure, it could lead to engine failure.

How serious is the P0523 code?

The P0253 code is very serious. While it might only be an indicator of a problem with the sensor itself, it could mean that there is a problem with your vehicle’s oil system. You could have the wrong oil in the vehicle, or you could not have enough oil in the vehicle. If you have a leak, this is a possibility. When caught soon, it is possible to repair. Waiting too long could lead to your engine seizing up and that would necessitate more repairs or possibly the replacement of the engine.

What repairs can fix the P0523 code?

If the light returns after they reset and test the vehicle, they will conduct a visual inspection to look for loose wires. They will make repairs and replacements as needed, and will retest the vehicle. If there are still issues and the code returns, they can check the engine and the oil passageways. They will check for leaks and repair them if possible. If the engine is too far gone, or if it has a catastrophic failure, they may need to replace the engine.

Additional comments for consideration regarding the P0523 code

If the engine light comes on and you notice that the oil pressure seems to be higher than usual, it could indicate a serious problem. Do not dismiss the idea of an issue with your engine just because you feel that it’s probably a malfunctioning sensor. While it could be the case, especially in an older vehicle that has more than 100,000 miles on it, there is always the chance that it shows something truly wrong with your vehicle. You don’t want to have your engine stop working entirely, so make sure you take your vehicle in for repair whenever you notice any of the trouble codes.

Need help with a P0523 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.

P0523
trouble codes
Check Engine Light

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

SCHEDULE P0523 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

4,240

Rating Summary
3,884
174
45
26
111
3,884
174
45
26
111
Breck

Breck

17 years of experience
355 reviews
Breck
17 years of experience
I was very please at Brecks recommendation for the repairs on my vehicle. I will for sure use him for all future repairs/consultations on my vehicle. He was upfront, honest and on time for my appointment. I will recommend him to all my family and friends. He is totally awesome! I had initially had another diagnosis on my car and it wasn't what they said it was. This will not be as costly as recommended by another mechanic! Thanks, Breck!
2010 CHEVROLET CAMARO - CHECK ENGINE LIGHT IS ON - KATY, TEXAS
Milton

Milton

34 years of experience
154 reviews
Milton
34 years of experience
Milton was very patient while explaining the problems. Gave excellent service and advice. I will be us your company in the future & I will request Milton at all times. I would wait longer to guarantee his service for my car. I trust him completely.
2004 HONDA CIVIC - CHECK ENGINE LIGHT IS ON - NORTH LAS VEGAS, NEVADA
William

William

31 years of experience
144 reviews
William
31 years of experience
Perfect experience
2006 FORD ESCAPE - CHECK ENGINE LIGHT IS ON - GLENDALE, ARIZONA
Chris

Chris

8 years of experience
223 reviews
Chris
8 years of experience
Very knowledgeable and experienced. He explained things very plainly and specificity. Also was very prompt.
2002 FORD RANGER - CHECK ENGINE LIGHT IS ON - MESA, ARIZONA

More related articles

P0240 OBD-II Trouble Code: Turbocharger Boost Sensor B Circuit Range/Performance
P0240 code definition Turbocharger Boost Sensor B Circuit Range/Performance What the P0240 code means P0240 is an OBD-II generic code triggered when the Engine Control Module (ECM) detects the intake boost...
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...
The Traveler’s Guide to Driving in Malaysia
CraigBurrows / Shutterstock.com Malaysia is a popular destination for many tourists today. The country has amazing sights and attractions that you will want to explore....

Related questions

Q: Throttle Position Sensor

Anytime you go to a parts store to get a computer scan for the Check Engine Light you are not getting a diagnosis of the problem but only a code retrieved from the engine control module (ECM) memory. This is...

Q: Check Engine Light on.

It sounds like you have a bad misfire. While a faulty O2 sensor could be the cause, it is not the most likely. A misfire can be caused by anything that prevents the air/fuel mixture from igniting properly inside the...

Q: ESP Light and column electrical failures after a sharp turn.

That must have been one hard turn! The ESP light is for the Electronic Stability Program: a system built into your braking system to help prevent the car from going out of control in a sharp turn. You could have...

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