P0387
Crankshaft Position Sensor B Circuit Low Input
DTC P0387, sometimes indicated as P038700 is an OBD diagnostic trouble code indicating a generic fault with the vehicle powertrain (i.e. engine and gearbox). This code identifies an error with the ignition system causing crankshaft position sensor b circuit low input.
This code is set when the PCM detects a low voltage input signal from the crankshaft position sensor B. This sensor is used to detect the position of the crankshaft and is used by the PCM for ignition timing and fuel injection.
Common causes of this code include a bad crankshaft position sensor, a bad wiring connection, or a bad PCM.
If this code is set, first check the wiring connections to the crankshaft position sensor. If the connections are good, then test the crankshaft position sensor for proper operation. If the sensor is good, then the PCM may need to be replaced.
- P0387: Crankshaft Position Sensor B Circuit Low Input
- P0387: Crankshaft Position Sensor "B" Circuit Low
- P0387: Crankshaft position (CKP) sensor B – low input
- P0387 00: Incorrect signal from the crankshaft speed sensor "B" - short to ground
- P0387 00: Crankshaft position (CKP) sensor B - low input
2013 VOLKSWAGEN JETTA with 62000.0 miles
The problem showing error code P0087, P0387 high pressure fuel pump failure, the cost of expensive to repair, difficult to meet warranty related power-train & engine. It has been twoce break down. Its third break down. It only 62k mileages on it. Vw want to working on it due of out of warranty cost. I am not happy that vw is not qualify to inspect part problem cause. I hope it is affect other customers who have simply problem with hpfp.
FUEL/PROPULSION SYSTEM, POWER TRAIN ENGINE