Camshaft Sensor

Fig 1: Identifying Camshaft Position (CMP) Sensor

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Magnet-resistive sensor (hall sensor). The sensor is supplied with 5V voltage and is grounded through the control module.

Characteristic

When the camshaft rotates, a pulsed voltage signal is generated. The signal is 5V when tooth on the camshaft passes the sensor and 0V for gap.

TERMINAL

Connector terminal	Control module terminal	Signal type	Other
#1	#A72	Power supply	The camshaft sensors have common voltage feed. The sensors are supplied with 5 V
#2	#A7	Ground	The camshaft sensors have common ground connection The sensors are grounded through the control module.
#3	#A31 (camshaft sensor 4) #A32 (camshaft sensor 3) #A33 (camshaft sensor 2) #A34 (camshaft sensor 1)	Signal	Signal output. Sensor against tooth = 5V Sensor against gap = 0V

Fig 2: Identifying 3-Pin Connector Terminals

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Check

Prerequisites (unless otherwise specified):

Fig 3: Identifying Camshaft Sensor Signal Output

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Camshaft sensor:

Measure voltage between #A7 and respective signal output on the camshaft sensor.

The value should be:

≈ 0V gap against sensor.

≈ 5V tooth against sensor

NOTE:

The signal's asymmetrical wave shape depends on the camshaft's teeth.