P0388

2017-10-10

Description:

  • The fault code P0388 suggests a high input voltage in the circuit for the B crankshaft position sensor. This fault code may cause rough idling, stalling, or engine misfires.

Possible Symptoms:

  • Illuminated check engine light

  • Rough idling or stalling

  • Engine misfires

  • Reduced engine power or acceleration

Possible Causes:

  • Damage to the wiring of the crankshaft position sensor circuit

  • Poor electrical connections in the circuit

  • Failed crankshaft position sensor

  • Failed engine control module (ECM)

Related Parts:

  • Crankshaft Position Sensor: The crankshaft position sensor monitors the position of the crankshaft to regulate fuel injection. Problems lead to engine misfire and engine stalling

Possible Solutions:

  • Check and repair any damaged wiring in the circuit

  • Clean or tighten any loose or corroded electrical connections

  • Replace the crankshaft position sensor if necessary

  • Replace the engine control module (ECM) if necessary

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