P0340 on Ram vehicles A fault in the camshaft position sensor circuit on bank 1
P0340 is named on 17 Ram model years (2016–2019): 37 manufacturer filings and 0 owner reports in NHTSA’s files, across ProMaster, 1500, 2500, 3500, Promaster City.
Which Ram model years name P0340
Source: NHTSA manufacturer communications and complaints| Model year | Filed under | Bulletins | Owner reports |
|---|---|---|---|
| 2016 Ram ProMaster | Engine | 4 | — |
| 2019 Ram ProMaster | Power Train | 3 | — |
| 2019 Ram 1500 | Engine | 2 | — |
| 2018 Ram 1500 | Engine | 2 | — |
| 2018 Ram 2500 | Engine | 2 | — |
| 2018 Ram 3500 | Engine | 2 | — |
| 2018 Ram ProMaster | Engine | 2 | — |
| 2018 Ram Promaster City | Engine | 2 | — |
| 2017 Ram 1500 | Engine | 2 | — |
| 2017 Ram 2500 | Engine | 2 | — |
| 2017 Ram 3500 | Engine | 2 | — |
| 2017 Ram ProMaster | Engine | 2 | — |
| 2017 Ram Promaster City | Engine | 2 | — |
| 2016 Ram 1500 | Engine | 2 | — |
| 2016 Ram 2500 | Engine | 2 | — |
| 2016 Ram 3500 | Engine | 2 | — |
| 2016 Ram Promaster City | Engine | 2 | — |
A model year is listed because the code is named in its own record — a bulletin filed against it, or an owner’s complaint about it — not because every one of these vehicles sets it. Counts are documents in NHTSA’s files, not failure rates.
Ram filings that name P0340
Source: NHTSA manufacturer communicationsBulletins and campaigns Ram filed with NHTSA whose summary names P0340. Quote the document number at the service desk — it is a diagnosis the maker has already written down.
- 05149141A Service bulletin2015-08-04 · Engine
- Camshaft Position Sensor If replacing a camshaft position sensor for P0340, P0344, P0345, P0349, P0365, P0369, P0390 or P0394 fault codes, please review information below and contact Tom Nies on his cell phone: (248) 494-0187. If no response is received within 15 minutes, please continue with repair. Before clearing any codes, please pull Freeze Frame and CamCrank Sync Event Monitor data (in
- 68080819A Service bulletin2015-08-11 · Engine
- Camshaft Position Sensor If replacing a camshaft position sensor for P0340 and/or P0344 fault codes, please review information below and contact Andrew Action on his cell phone: (248) 421- 4130. If no response is received within 15 minutes, please continue with repair.~ Before clearing any codes please pull Freeze Frame and CamCrank Sync Event Monitor data (instructions below) from the PCM an
- 18-090-19 Service bulletin2019-11-01 · Electrical System
- 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 Diagnostic Trouble Codes (DTCs) have been set:P0340 - Cam Position Sensor Circuit - Bank 1 Intake. P0345 - Cam
- 1809019 Service bulletin2019-11-01 · 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 Diagnostic Trouble Codes (DTCs) have been set:P0340 - Cam Position Sensor Circuit - Bank 1 Intake. P0345 - Cam
- 18-104-22 Service bulletin2022-05-26 · 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
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. The record above is what Ram and its owners have filed about it; the code’s page across every make has the whole file.
Common questions
Source: NHTSA files and the OBD-II standardIs P0340 a known problem on Ram vehicles?
It is a documented one: NHTSA's files hold 37 manufacturer filings and 0 owner reports naming P0340 on 17 Ram model years (2016–2019). Whether it is a problem on one particular car is a diagnosis, not a count — but a bulletin that names the code on your model year is the place to start.
Which Ram models does P0340 appear on most?
2016 ProMaster (4 documents), 2019 ProMaster (3 documents), 2019 1500 (2 documents).
Does P0340 on a Ram mean it is recalled?
No. Recalls are filed by campaign and matched by VIN; no recall is triggered by a scan tool. Check the VIN at nhtsa.gov/recalls, or open the model year's page here for the campaigns filed against it.