Camshaft Position (CMP) sensor, checking: Notes

NOTE: Use only gold-plated terminals when servicing terminals in harness connector of sensors.

Recommended special tools and equipment

Requirements

Fig 1: Identifying Main Fuse Panel

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Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations

Fig 2: Identifying Relays And Fuses In Protective Housing (Left Side Of Plenum Chamber)

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Fuses -1, 2, 3, 4 and 7- in protective housing (plenum chamber, left) must be OK:

Refer to Electrical Wiring Diagrams, Troubleshooting & Component Locations

Battery voltage must be at least 11.5 Volts.
All electrical consumers, e.g. lights and rear window defroster, must be switched off.
Parking brake must be engaged or else daylight driving lights will be switched on.
Ground (GND) connections between engine and chassis must be OK.

Work sequence

Cylinder bank 1

Fig 3: Identifying Camshaft Position (CMP) Sensors & Camshaft Adjustment Valve Connectors

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1 - Camshaft Position (CMP) Sensor -G40- intake camshaft

4 - Camshaft Position (CMP) Sensor 2 -G163- exhaust camshaft

Cylinder bank 2

Fig 4: Identifying Camshaft Position (CMP) Sensors & Camshaft Adjustment Valve Connectors

Courtesy of VOLKSWAGEN UNITED STATES, INC.

1 - Camshaft Position (CMP) Sensor 4 -G301- exhaust camshaft

4 - Camshaft Position (CMP) Sensor 3 -G300- intake camshaft

Cylinder bank 1 and 2

NOTE:

Checking voltage supply

Fig 5: Measuring Voltage Between Harness Connector Terminals 1 & 3

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Connect multimeter to terminal 1 (B+) and 3 (Ground) of respective connector for Camshaft Position (CMP) sensor for voltage measurement.
Switch ignition on.

Specified value: at least 4.5 V

If there is no voltage: