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Federal filingsHome›Trouble codes› P0506
Diagnostic trouble code

P0506

7 owner reports and 379 manufacturer filings across 77 model years from Buick, Cadillac, Chevrolet, Chrysler and others.

Powertrain Generic OBD-II code 379 manufacturer filings 7 owner reports

Where P0506 shows up

Source: NHTSA manufacturer communications and complaints
Model yearFiled underBulletinsOwner reportsParts
2019 Chevrolet EquinoxEngine13—Throttle body →
2019 Chevrolet MalibuPower Train13—Throttle body →
2019 GMC TerrainEngine13—Throttle body →
2020 Chevrolet CamaroEngine11—Throttle body →
2020 Chevrolet CorvetteEngine11—Throttle body →
2021 Chevrolet SuburbanEngine11—Throttle body →
2021 Chevrolet TahoeEngine11—Throttle body →
2021 GMC YukonEngine11—Throttle body →
2020 Jeep WranglerPower Train11—Throttle body →
2021 Cadillac EscaladeEngine10—Throttle body →
2021 Chevrolet CamaroEngine10—Throttle body →
2020 Chevrolet Silverado 2500HDEngine10—Throttle body →
2020 GMC Sierra 2500HDEngine10—Throttle body →
2020 Chevrolet EquinoxEngine9—Throttle body →
2020 GMC TerrainEngine9—Throttle body →
2017 Cadillac CTSEngine7—Throttle body →
2016 Cadillac CTSElectrical System7—Throttle body →
2017 Chevrolet CamaroEngine7—Throttle body →
2016 Chevrolet CamaroElectrical System7—Throttle body →
2020 Chevrolet MalibuEngine7—Throttle body →
2021 Chevrolet EquinoxEngine6—Throttle body →
2021 Chevrolet MalibuEngine6—Throttle body →
2021 Chevrolet SilveradoEngine6—Throttle body →
2021 GMC SierraBack Over Prevention6—Throttle body →
2021 GMC TerrainEngine6—Throttle body →

Showing the 25 model years where P0506 appears most; it is on file for 77 in total.

A model year appears here because the code is named in its record, not because every one of these vehicles sets it. Counts are mentions in the federal files, not failure rates — nobody publishes the denominator.

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P0506 by make

The same record, one make at a time: the model years, bulletins and owner reports that name P0506 on that maker’s vehicles.

Chevrolet 37GMC 15Cadillac 10Ram 5

What it gets filed under

Engine 163 Electrical System 93 Power Train 38 Back Over Prevention 34 Equipment 26 Structure 17

What owners said

Source: NHTSA complaint database

Owners’ own words, one per nameplate, scrubbed of anything identifying. These are unverified reports filed with NHTSA — they are what was said, not a finding that it was true.

The vehicle was towed to the residence and then to an independent mechanic, who retrieved DTC: P0014, P0017, P0506, P0524; and determined that there were metal shavings inside the oil filter and the engine
2022 Nissan Rogue at 159,143 miles Sep 24, 2026 NHTSA owner report
The engine began running excessively rich (Code P2178), causing the engine idle to drop dangerously low (Code P0506)
2021 Kia Sorento Jun 10, 2026 NHTSA owner report
Upon turning vehicle off and using a code reader codes P0106 and P0506 was on scanner
2017 GMC Yukon Nov 30, 2025 NHTSA owner report
Once they conducted their diagnostic they found that the Engine needed to be replaced showing code P0326, P0014, P052A, P0506, P0300, P0301, P0303
2017 Hyundai Elantra Aug 2, 2022 NHTSA owner report

379 manufacturer filings name P0506. Start with what the maker wrote down.

A code names the test that failed, not the part. A bulletin that names it is often a diagnosis someone has already written down — quote its number at the service desk.

Read the filingsSearch every bulletin →
Photo: Compagnons / Unsplash

Manufacturer filings that name it

Source: NHTSA manufacturer communications

Service bulletins and campaigns whose filed summary names P0506.

What P0506 means

Source: SAE J2012 / OBD-II

P0506 sits in the generic range of the OBD-II standard, so it means the same thing on every vehicle sold in the United States — but WhichTrim does not carry a definition for it and will not invent one. What is on this page is the record: who named it and on what.

A stored code names the test that failed, never the part that caused it. It is the starting point of a diagnosis, not its conclusion — the same code has several possible causes and the cheap one is not always right.

From here
Get a model's new bulletins by email See what owners reported Look up a bulletin by its number Watch a VIN for new recalls

Common questions about P0506

Source: NHTSA files and the OBD-II standard

Can I keep driving with P0506 stored?

Nobody can answer that from the code alone, and a site that does is guessing. A steady light means a fault was logged and the car should be checked soon; a flashing light means a severe misfire — slow down and get it seen as soon as possible, because severe misfire can quickly damage the catalytic converter. The safe read of this page is the mileage and the components, not permission.

Does a code mean the car is recalled?

No. Recalls are filed by campaign and matched by VIN, and none of them are triggered by a scan tool. If you want to know whether an open recall applies to one specific vehicle, check the VIN at nhtsa.gov/recalls — that is the only source that settles it.

Why do the counts here differ from other sites?

Because these are not estimates. Every number on this page is a count of documents in NHTSA's own files: manufacturer communications that name the code in their filed summary, and owner complaints that name it in the narrative. We do not model, weight or extrapolate them.

Will clearing the code fix it?

Clearing turns the light off and erases the freeze-frame data a technician would have used to work out what happened. If the condition is still there the code returns, usually within a few drive cycles, and the diagnosis now starts from less information than before.

Where to go next

pages beside this code
Filed alongside P0300 Another code that appears in the same filings and owner reports as P0506.Filed alongside B3055 Another code that appears in the same filings and owner reports as P0506.Vehicle 2019 Chevrolet Equinox The model year P0506 is filed against most often.The data Trouble codes by API GET /v1/dtc joins every code to bulletins and owner reports — free tier, no card.