Fault Code Lookup › Powertrain codes › P0523

P0523 Powertrain · generic OBD-II

Engine Oil Pressure Sensor/Switch High Voltage

P0523 is a standard code covering engine, transmission, fuel and emissions. It names the system that logged the fault, not the part that failed. Below: which cars owners reported it on, what happened, and recalls on those cars, from 3 complaints filed with NHTSA. Updated November 9, 2026.

  • 3owner reports
  • 2car models
  • 0mention a crash
  • 0mention a fire
  • 2015–2015model years

Which cars get code P0523?

Every model whose owners mentioned P0523 in a complaint, most reports first. Each year opens that car's full problem report. Popular models collect more reports because more of them are on the road.

Where does P0523 show up?

By brand

  • Jeep2
  • Ram1

Component the owner filed it under

  1. Engine3 (100%)
  2. Electrical System1 (33.3%)
  3. Fuel/Propulsion System1 (33.3%)

Is there a recall for P0523?

The others concern the component owners file this code under (Engine) on the same cars; they may or may not relate to the code. Recall repairs are free; check your VIN at nhtsa.gov/recalls.

Engine And Engine Cooling Chrysler (FCA US, LLC) is recalling certain 2014-2019 Ram 1500 and 2014-2020 Jeep Grand Cherokee vehicles equipped with 3.0L Diesel engines. The crankshaft position sensor tone wheel may delaminate, causing the engine to lose its ability to synchronize the fuel injector pulses and cam shaft timing… NHTSA campaign 23V411000 · June 8, 2023 · Affected cars

2015 Jeep Grand Cherokee, 2015 Ram 1500. Full risk and remedy on each car's report.

Engine And Engine Cooling: Exhaust System: Emission Control: Gas Recirculation Valve (Egr Valve) Chrysler (FCA US LLC) is recalling certain 2014-2019 Jeep Grand Cherokee vehicles equipped with the 3.0L EcoDiesel engines. The Exhaust Gas Recirculation (EGR) cooler may crack and allow pre-heated vaporized coolant to enter the EGR system. This mixture may combust inside the intake manifold. NHTSA campaign 20V699000 · November 12, 2020 · Affected cars

2015 Jeep Grand Cherokee. Full risk and remedy on each car's report.

Engine And Engine Cooling: Engine: Diesel Chrysler (FCA US LLC) is recalling certain 2014-2018 Ram 1500 and 2014-2016 Jeep Grand Cherokee vehicles equipped with 3.0L diesel engines. The crankshaft position sensor tone wheel may delaminate causing the engine to lose its ability to synchronize the fuel injector pulses and cam shaft timing… NHTSA campaign 20V475000 · August 13, 2020 · Affected cars

2015 Jeep Grand Cherokee, 2015 Ram 1500. Full risk and remedy on each car's report.

Engine And Engine Cooling: Exhaust System: Emission Control: Gas Recirculation Valve (Egr Valve) Chrysler (FCA US LLC) is recalling certain 2014-2019 Ram 1500 and 1500 Classic Pickup trucks equipped with 3.0L Eco Diesel engines. The Exhaust Gas Recirculation (EGR) cooler may crack and allow pre-heated vaporized coolant to enter the EGR system. This mixture may combust inside the intake… NHTSA campaign 19V757000 · October 24, 2019 · Affected cars

2015 Ram 1500. Full risk and remedy on each car's report.

Engine And Engine Cooling: Engine: Gasoline: Turbo/Supercharger Accessible Technologies, Inc. (ATI) is recalling certain ProCharger Superchargers, model numbers AB037A-100, AB037A-100P, and A037A-100B, sold for installation on 2012-2017 Jeep Grand Cherokee SRT8 and SRT vehicles. The supercharger mounting bracket may contact and damage the ABS line, possibly… NHTSA campaign 17E061000 · October 19, 2017 · Affected cars

2015 Jeep Grand Cherokee. Full risk and remedy on each car's report.

What happened when owners saw P0523?

3 of the 3 reports, spread across the models above, as the owners wrote them. NHTSA removes names and VINs; long reports are trimmed. CarHooq has not verified individual claims.

05/2023 loud ticking noise coming from top right side of engine. Replaced transfer case module. Ticking sound continued. Check engine light code P0523 occurred 06/2023. Known issue with Jeep Grand Cherokee 3.6L: rocker arms and right intake camshaft failure
2015 Jeep Grand CherokeeEngine, Fuel/Propulsion SystemNHTSA complaint 11525713 · Jun 6, 2023
Check engine light came on While driving up hill and shortly after I lost all throttle response and cruise control was disengaged. Vehicle started to slow and began to be sluggish. Still no throttle response. Pulled over. Put vehicle in park and then drive. Drove for next 2 hours with no issue. Checked with dealership and truck is throwing codes p066d and P0523. Truck has been fine so nice issue but still throwing those codes.
2015 Ram 1500EngineNHTSA complaint 11543670 · Sep 10, 2023
Check engine light code P06DE occurred 04/2022. Oil pressure sensor removed And replaced. Check engine light code P06DE occurred 05/2022. Performed 2nd oil change in less than 1 month. Check engine light code P0440 occurred 10/2022. Evaporative System Integrity Monitor Switch replaced. Check engine light code P06DE occurred 03/2023. Oil pressure sensor removed And replaced (including R&I Lower intake Manifold). Check engine light code P06DE occurred 04/2023 Oil pressure sensor removed And replaced. Replaced oil pump and gaskets needed for reassembly of engine. Check engine light code P0523 occurred 05/2023. Replaced transfer case module. Check engine light code P0523 occurred 06/2023.
2015 Jeep Grand CherokeeElectrical System, EngineNHTSA complaint 11525706 · Jun 6, 2023

P0523: questions drivers ask

What does code P0523 mean?

P0523 is a generic OBD-II powertrain code. Its standard definition is "Engine Oil Pressure Sensor/Switch High Voltage". The code tells you which system set the fault, not which part failed; the owner reports on this page show what it meant in practice for 2 car models.

Which cars get code P0523 most often?

In NHTSA owner complaints, P0523 is mentioned most for the Jeep Grand Cherokee (2), Ram 1500 (1), across 2 models and model years 2015 to 2015. Popular models collect more reports because more of them are on the road.

Is there a recall for code P0523?

No NHTSA recall text names P0523 directly. 5 recalls on the cars that report this code concern the same component owners name most (Engine); they may or may not relate to the code. Check your VIN at nhtsa.gov/recalls.

What should I do if my car shows P0523?

Write down when the code appeared and what the car did (warning lights, loss of power, noises, speed, weather). Check your VIN for open recalls at nhtsa.gov/recalls, ask a dealer or independent workshop to read the stored freeze-frame data before anyone clears the code, and keep the repair order. If the car loses power in traffic, stop driving it. CarHooq does not diagnose: these are owner reports and official recall notices, not repair advice.

How this page was made

CarHooq read the text of every owner complaint filed with NHTSA for 19 US and European brands (model years 2012 onwards) and picked out the diagnostic trouble codes owners wrote down. This page lists every mention of P0523. The definition is the generic SAE J2012 wording; a carmaker may use the code slightly differently. Nothing here is a diagnosis. More answers: the fault code FAQ. Data: NHTSA Office of Defects Investigation (public domain), retrieved November 9, 2026. How CarHooq reports are made.

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