Diagnostic Trouble Code
P0366
Camshaft Position Sensor B Circuit Range/Performance Bank 1
Technical Description P0366
Camshaft Position Sensor B Circuit Range/Performance Bank 1
What Does This Mean P0366?
This is a generic powertrain diagnostic trouble code (DTC), which means it covers all makes/models from 1996 and newer. Specific troubleshooting steps will vary depending on the vehicle.
This P0366 code basically means that the powertrain control module (PCM) detected a problem with the "B" camshaft signal. This DTC pertains to engine bank 1, which is the bank of cylinders that contains cylinder #1.
The camshaft position sensor (CPS) sends a specific signal to the PCM for Top Dead Center on the compression stroke as well as signals indicating the position of the cam sensor. This is accomplished through a reluctor wheel attached to the camshaft that passes by the cam sensor. Any time that the signal to the PCM is inconsistent with what the signal should be, this code is set. NOTE: this code can also be set by extended cranking periods.
This P0366 code basically means that the powertrain control module (PCM) detected a problem with the "B" camshaft signal. This DTC pertains to engine bank 1, which is the bank of cylinders that contains cylinder #1.
The camshaft position sensor (CPS) sends a specific signal to the PCM for Top Dead Center on the compression stroke as well as signals indicating the position of the cam sensor. This is accomplished through a reluctor wheel attached to the camshaft that passes by the cam sensor. Any time that the signal to the PCM is inconsistent with what the signal should be, this code is set. NOTE: this code can also be set by extended cranking periods.
Symptoms P0366
1
Poor fuel economy (if engine runs)
2
Possible no start condition
3
Check engine light on
Possible Causes P0366
1
Cam sensor wiring routed too close to spark plug wiring (causing interference)
2
Poor wiring connection at cam sensor
3
Poor wiring connection at PCM
4
Bad cam sensor "B" on bank 1
5
Damaged reluctor wheel
Solutions & Repair Steps P0366
NOTE: In some cases this engine code is generated on vehicles that do not actually have a camshaft position sensor. In those cases it basically means the engine is misfiring badly due to faulty spark plugs, spark plug wires, and often coils.
Often replacing the sensor fixes this code, but not necessarily. Therefore it's important to check the following:
Related Camshaft Trouble Codes: P0340, P0341, P0342, P0343, P0345, P0347, P0348, P0349, P0365, P0367, P0368, P0369, P0390, P0366, P0392, P0393, P0394.
Often replacing the sensor fixes this code, but not necessarily. Therefore it's important to check the following:
Related Camshaft Trouble Codes: P0340, P0341, P0342, P0343, P0345, P0347, P0348, P0349, P0365, P0367, P0368, P0369, P0390, P0366, P0392, P0393, P0394.