What does this code mean?
The wording below belongs to the named make and communication. Match the complete code, reporting module, model year and engine before applying it.
A code identifies a detected condition, not a part that must automatically be replaced.
Manufacturer communications
11Original wording in English
AUDI
Reported code forms P039100
This bulletin provides information when MIL on and/or Camshaft Position faults P039100, P036600 or P034600 stored in ECM.
AUDI
Reported code forms P039100
This bulletin provides information when MIL on and/or Camshaft Position faults P039100, P036600 or P034600 stored in ECM.
PORSCHE
Reported code forms P039100
Technical information on the check engine warning light active in conjunction with fault memory entry “P036600”,“P039100”, “P034100” and/or “P034600” in the DME Control Unit
SUBARU
Reported code forms P0391
"THIS SERVICE INFORMATION BULLETIN ANNOUNCES A DESIGN CHANGE TO THE ENGINE WIRING HARNESS TO PREVENT WATER INTRUSION AND ACCUMULATION FROM OCCURRING INSIDE THE CORRUGATED PLASTIC HARNESS TUBING. IN SOME CASES, THIS…
SCION
Reported code forms P0391
TSB: Some 2013 model year FR-S vehicles may exhibit intake and/or exhaust camshaft position sensor related and/or engine misfire DTCs (P0340, P0341, P0345, P0346, P0365, P0366, P0390, P0391, P0301, P0302, P0303, and…
SCION
Reported code forms P0391
Some 2013 model year FR-s vehicles may exhibit intake and/or exhaust camshaft position sensor related and/or engine misfire DTCs (P0340, P0341, P0345, P0346, P0365, P0366, P0390, P0391, P0301, P0302, P0303, P0304) due…
Check vehicle applicability
35A listed vehicle is a research lead. Confirm the engine, production range and software in the manufacturer's information.
| Make | Model | Model year |
|---|---|---|
| Audi | RS Q8 | 2025 |
| Audi | RS Q8 | 2023 |
| Audi | RS Q8 | 2022 |
| Audi | RS Q8 | 2021 |
| Audi | RS Q8 | 2020 |
| Buick | ALLURE | 2007 |
| Buick | ENCLAVE | 2008 |
| Buick | LACROSSE | 2007 |
| Cadillac | CTS | 2008 |
| Cadillac | CTS | 2007 |
| Cadillac | SRX | 2008 |
| Cadillac | SRX | 2007 |
Before replacing a part
Record codes and freeze-frame data. Check battery condition, related codes and visible wiring or hose damage. Follow the vehicle's diagnostic procedure and test results before replacing parts.
Can I keep driving?
A code alone cannot establish whether driving is safe. A flashing malfunction light, severe shaking, overheating, oil-pressure warning or loss of braking or steering needs prompt attention. Stop in a safe place and seek assistance when control or engine safety is affected. Follow the vehicle handbook.