P0340
8 owner reports and 218 manufacturer filings across 79 model years from Buick, Cadillac, Chevrolet, Chrysler and others.
Where P0340 shows up
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2016 GMC Yukon | Electrical System | 11 | — |
| 2019 GMC Sierra | Engine And Engine Cooling | 8 | 1 |
| 2019 Chevrolet Silverado | Engine And Engine Cooling | 8 | — |
| 2016 GMC Sierra | Engine And Engine Cooling | 8 | — |
| 2017 Chevrolet Silverado | Engine And Engine Cooling | 7 | — |
| 2018 GMC Yukon | Electrical System | 7 | — |
| 2017 GMC Yukon | Electrical System | 7 | — |
| 2016 Cadillac Escalade | Engine And Engine Cooling | 6 | — |
| 2016 Chevrolet Silverado 2500HD | Engine And Engine Cooling | 6 | — |
| 2016 Chevrolet Tahoe | Engine And Engine Cooling | 6 | — |
| 2020 Ford Escape | Electrical System | 5 | 1 |
| 2017 Buick Encore | Electrical System | 5 | — |
| 2018 Cadillac Escalade | Electrical System | 5 | — |
| 2017 Cadillac Escalade | Engine And Engine Cooling | 5 | — |
| 2018 Chevrolet Tahoe | Electrical System | 5 | — |
| 2017 Chevrolet Tahoe | Engine And Engine Cooling | 5 | — |
| 2018 Chevrolet Silverado 2500HD | Electrical System | 4 | — |
| 2021 Chrysler Pacifica | Power Train | 4 | — |
| 2018 GMC Sierra 3500HD | Electrical System | 4 | — |
| 2018 Jeep Renegade | Electrical System | 4 | — |
| 2016 Ram ProMaster | Engine | 4 | — |
| 2018 Chevrolet Suburban | Electrical System | 3 | — |
| 2017 Chevrolet Trax | Electrical System | 3 | — |
| 2016 GMC Sierra 2500HD | Equipment | 3 | — |
| 2019 Ram ProMaster | Power Train | 3 | — |
| 2018 Buick Encore | Equipment | 2 | — |
| 2018 Cadillac CTS-V | Electrical System | 2 | — |
| 2020 Cadillac Escalade | Engine And Engine Cooling | 2 | — |
| 2018 Chevrolet Camaro | Electrical System | 2 | — |
| 2018 Chevrolet Corvette | Electrical System | 2 | — |
| 2018 Chevrolet Silverado | Engine And Engine Cooling | 2 | — |
| 2016 Chevrolet Silverado | Electrical System | 2 | — |
| 2017 Chevrolet Silverado 2500HD | Electrical System | 2 | — |
| 2017 Chevrolet Silverado 3500HD | Electrical System | 2 | — |
| 2016 Chevrolet Silverado 3500HD | Electrical System | 2 | — |
| 2020 Chevrolet Tahoe | Engine And Engine Cooling | 2 | — |
| 2018 Chevrolet Trax | Equipment | 2 | — |
| 2021 Ford Escape | Equipment | 2 | — |
| 2017 GMC Sierra 2500HD | Electrical System | 2 | — |
| 2017 GMC Sierra 3500HD | Electrical System | 2 | — |
| 2016 GMC Sierra 3500HD | Electrical System | 2 | — |
| 2020 GMC Yukon | Engine And Engine Cooling | 2 | — |
| 2018 Mazda CX-5 | Engine | 2 | — |
| 2018 Mazda Mazda6 | Engine | 2 | — |
| 2019 Ram 1500 | Engine | 2 | — |
| 2018 Ram 1500 | Engine | 2 | — |
| 2017 Ram 1500 | Engine | 2 | — |
| 2016 Ram 1500 | Engine | 2 | — |
| 2018 Ram 2500 | Engine And Engine Cooling | 2 | — |
| 2017 Ram 2500 | Engine And Engine Cooling | 2 | — |
| 2016 Ram 2500 | Engine And Engine Cooling | 2 | — |
| 2018 Ram 3500 | Engine And Engine Cooling | 2 | — |
| 2017 Ram 3500 | Engine | 2 | — |
| 2016 Ram 3500 | Engine And Engine Cooling | 2 | — |
| 2018 Ram ProMaster | Engine | 2 | — |
| 2017 Ram ProMaster | Engine | 2 | — |
| 2018 Ram Promaster City | Engine | 2 | — |
| 2017 Ram Promaster City | Engine And Engine Cooling | 2 | — |
| 2016 Ram Promaster City | Engine And Engine Cooling | 2 | — |
| 2019 Chevrolet Silverado 3500HD | Engine And Engine Cooling | 1 | — |
Showing the 60 model years where P0340 appears most; it is on file for 79 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.
What it gets filed under
What owners said
Source: NHTSA complaint databaseOwners’ 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 2021 Honda Civic experienced an emission system failure at 70,000 MPH and detected fault code p0340, possibly an injector failure
The engine codes scanned via the OBDII port directly after are as follows: P051B, P0299, P0340, P0344, P0365 and P0369
Car will either not start or heists to start code with check engine light is P0340 for camshaft position sensor I have already replaced this once before 2yrs ago it should not need to be replaced again so soon
Upon running a diagnostic, the following error codes displayed; P0420, P0340, P0197, P0117, P1D83, P2181(several codes showing up more than once showing permanent, pending)
I received a notofication for a "field service action" 20b14 for a powetrain control module update on my 2020 Ford Escape hybrid due to "stop safely now" and check engine light and dtc's P0340 and P0340 I took it in to the dealership on 23…
Manufacturer filings that name it
Source: NHTSA manufacturer communicationsService bulletins and campaigns whose filed summary names P0340. Quoting the document number at a service desk is often the fastest route to a diagnosis someone has already written down.
- 18-104-222022-05-26 · Power Train
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves reprogramming the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation the technician may find that one or more of the following DTCs have been set: P0556 - Brake Booster Pressure Sensor Circuit Performance. P0340 - Cam Position Sensor Circ
- 18050222022-03-11 · Exterior Lighting
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves updating the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, the technician may notice one or moreof the following Diagnostic Trouble Codes (DTCs) have been set: P0340 - Camshaft Position Sensor Circuit - Bank 1 Sensor A. P0345 - Cam
- 18050222022-03-11 · Electrical System
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves updating the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, the technician may notice one or moreof the following Diagnostic Trouble Codes (DTCs) have been set: P0340 - Camshaft Position Sensor Circuit - Bank 1 Sensor A. P0345 - Cam
- 18050222022-03-11 · Power Train — Automatic Transmission — Control Module (Tcm/Pcm/Tecm)
- Flash: Powertrain Control Module (PCM) Updates This bulletin involves updating the PCM with the latest available software. Customers may experience a Malfunction Indicator Lamp (MIL) illumination. Upon further investigation, the technician may notice one or more of the following Diagnostic Trouble Codes (DTCs) have been set: P0340 - Camshaft Position Sensor Circuit - Bank 1 Sensor A. P0345 - Ca
- SSM 502452021-10-29 · Electrical System
- Some 2020-2021 Escape vehicles may exhibit various symptoms due to a loss of voltage reference (VREF) from the 14290 harness above the steering shaft u-joint. Possible symptoms may include an illuminated malfunction indicator lamp (MIL),runs rough, fuse 44 open and may or may not set DTCs P06A7, P0840, P0842, P0845, P0847, P2122, P2127, P0522, P008A, P06A6, P2196, P0192, P0369, P0212, P0340, P0344
- SSM 501162021-09-14 · Equipment
- Some 2020-2021 Escape vehicles may exhibit a loss of voltage reference (VREF) or runs rough, blow fuse 44 and may or may not set DTC's P06A7,P0840,P0842,P0845,P0847,P2122,P2127,P0522,P008A,P06A6,P2196,P0192, P0212,P0340,P0344,P0365,P0532,P06E9,P0369,C175E,C175B,C2302,P0369. The 14290 harness directly above the steering shaft u-joint near the upper brake pedal mount may come in contact with the ste
What P0340 means
Source: SAE J2012 / OBD-IIA fault in the camshaft position sensor circuit on bank 1.
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.
Common questions about P0340
Source: NHTSA files and the OBD-II standardCan I keep driving with P0340 stored?
Nobody can answer that from the code alone, and a site that does is guessing. A steady light generally means the fault was logged and the vehicle is in a reduced-risk mode; a flashing light means stop soon, because a misfiring engine can destroy a catalytic converter in minutes. 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.