Checking power supply

Disconnect connectors -1- and -2- on Camshaft Position (CMP) sensor -G40- and Camshaft Position (CMP) sensor 3 -G300-.

Fig 1: Disconnecting Connectors On Camshaft Position (CMP) Sensor -G40- And Camshaft Position (CMP) Sensor -G300-
Courtesy of AUDI OF AMERICA, INC.
Disconnect connectors -1- and -2- on Camshaft position (CMP) sensor 2 -G163- and Camshaft position (CMP) sensor 4 -G301-.

Fig 2: Disconnecting Connectors 1 And 2 On Camshaft Position (CMP) Sensor 2 -G163 And Camshaft Position (CMP) Sensor -G301-
Courtesy of AUDI OF AMERICA, INC.

Connect multimeter as follows to measure voltage:

CMP SENSOR CIRCUIT TEST: VOLTAGE SUPPLY

Connector terminal	Measure to
1	Engine ground

Fig 3: Identifying CMP Sensor 3-Pin Harness Connector Terminals

Courtesy of AUDI OF AMERICA, INC.