P0386
SEVERECrankshaft Position Sensor B Circuit Range/Performance
What this code means
Crankshaft Position Sensor B Circuit Range/Performance. This is the most serious family of the set. A misfire sends unburnt fuel into the exhaust, where it destroys the catalytic converter within a few dozen kilometres. A flashing warning light means a misfire is happening now: stop driving.
How to read this code
- PPowertrain
- 0standardised code
- 3Ignition and misfire
- 86P0386
The letter P names the system: Powertrain. The digit 0 that follows marks a standardised code, shared by all manufacturers code. The next digit, 3, locates the fault: ignition and misfire.
What to do
Have it checked promptly. A misfire sends unburnt fuel into the exhaust and destroys the catalytic converter within a few dozen kilometres. If the light is flashing, stop driving.
Clearing a code switches the light off but repairs nothing: if the fault remains, the code comes back.
Nearby codes
- P0380Glow Plug/Heater Circuit A Malfunction
- P0381Glow Plug/Heater Indicator Circuit Malfunction
- P0382Glow Plug/Heater Circuit B Malfunction
- P0385Crankshaft Position Sensor B Circuit Malfunction
- P0387Crankshaft Position Sensor B Circuit Low Input
- P0388Crankshaft Position Sensor B Circuit High Input
- P0389Crankshaft Position Sensor B Circuit Intermittent