DTC P1396 BMW

Camshaft Position Sensor A Circ Malfunction

Camshaft Position Sensor A Circ Malfunction

Description

Engine started, battery voltage must be at least 11.5v, all electrical components must be off, parking brake must be engaged (to keep daytime driving lights off), automatic transmission selector must be in park and the ground between the engine and the chassis must be well connected. The DME detected the CMP sensor signal was implausible. Engine speed is greater than 500rpm, and the fault is tolerable as long as there are no misfired occurring at the same time.

Cause and Solution

CMP sensor circuit is open or shorted to ground
CMP sensor circuit is shorted to power
CMP sensor ground (return) circuit is open
CMP sensor installation incorrect (Hall-effect type)

Video Guide

Duration: PT4M17S | Uploaded: 2020-06-20

Diagnostic Info

  • DTC Code: P1396
  • Brand: BMW
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