P0391 - Camshaft Position Sensor B Circuit Range/Performance Bank 2
P0391 is a generic powertrain diagnostic trouble code indicating Camshaft Position Sensor B Circuit Range/Performance Bank 2. It relates to the Ignition System / Misfire system.
DTC Breakdown (SAE J2012)
| System | Powertrain (P) |
| Type | Generic |
| Subsystem | Ignition System / Misfire |
| Fault Index | 91 |
| Standard | SAE J2012 / ISO 15031-6 |
What does diagnostic code P0391 mean?
The dtc/">diagnostic trouble code P0391 represents Camshaft Position Sensor B Circuit Range/Performance Bank 2. This standard generic code points to a monitored fault condition in the vehicle's Powertrain network.
Detailed diagnostic guides and specific fix procedures for code P0391 are currently being compiled. Always verify check engine warnings with a qualified mechanic.
Frequently Asked Questions about P0391
What does P0391 mean?
The diagnostic trouble code P0391 represents Camshaft Position Sensor B Circuit Range/Performance Bank 2. This standard generic code points to a monitored fault condition in the vehicle's Powertrain network.
What is the system for P0391?
The P0391 code is located in the vehicle's Powertrain network.