This code indicates the engine computer is not receiving a valid electrical signal from the camshaft position sensor B (typically the exhaust camshaft) on bank 1. The computer uses this signal to time fuel injection and variable camshaft operation, so a missing or corrupted signal triggers this fault.
The sensor itself has failed internally or its output signal has degraded. This is the most common cause of a direct circuit code for this sensor.
Chafed, corroded, broken, or disconnected wiring between the sensor and the PCM can interrupt the signal or reference voltage. Heat and vibration near the engine commonly degrade these circuits.
The trigger wheel on the camshaft that the sensor reads may be damaged, loose, or contaminated with debris, causing an unreadable signal even if the sensor is functional.
Sludged oil or low oil pressure can prevent the camshaft phaser from reaching expected position, which may set camshaft sensor-related codes if timing is outside expected range.
A fault inside the PCM's input circuit for this sensor is rare and should only be considered after all wiring, sensor, and mechanical causes are fully eliminated.
Short distances may be possible, but extended driving is not recommended. The engine may run poorly, stall, or fail to restart, and continuing to drive can damage catalytic converters if fuel timing is incorrect.
Almost never. PCM failure is the least likely cause for this code. The sensor, wiring, or reluctor wheel account for the overwhelming majority of P0365 cases. Replacing the PCM without ruling out all other causes is a common and costly mistake.
No. P0365 specifically refers to the camshaft position sensor B circuit on bank 1, which is a different sensor and serves a different function than the crankshaft position sensor, though both provide timing data to the PCM.
If the code is caused by sludged oil or low oil pressure affecting variable valve timing, an oil change may help. However, if the sensor or wiring is faulty, an oil change will not resolve the code.