Component description for the crankshaft position sensor - GF07.04-P-6010SM

ENGINE 113.986

ENGINE 113.987

ENGINE 113.988

ENGINE 113.989

The crankshaft position sensor is located at transmission end, under the left cylinder bank.

Fig 1: Identifying Crankshaft Position Sensor - Engine 113.986/987/988/989

Task

The crankshaft position sensor detects the crankshaft position and motor speed contactlessly over the teeth of the driven plate (incremental gear).

Design

It consists of a plastic housing with an interior inductive coil and a 2-pin plug contact.

The clearance between the crankshaft position sensor and the teeth of the driven plate incremental gear is fixed by the installation position (approx. 0.8 mm).

Function

L5 Crankshaft position sensor

The front edge of a tooth (a) generates a positive voltage pulse and the rear edge (b) a negative voltage pulse.

The distance from the positive to the negative voltage peak equals the length of a tooth. The gap (c) produced by 2 missing teeth results in no voltage being generated in the crankshaft position sensor. This gap is used to recognize the top dead center position of cylinders 1 and 6.

Fig 2: Identifying Crankshaft Position Sensor Function - Engine 113.986/987/988/989