Checking Ground (GND) wire

WARNING: This page is about a different car, the 2006 Audi A4, 2005 Audi A4, 2004 Audi A4, 2003 Audi A4, and 2002 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Connect multimeter for voltage measurement as follows:

Fig 1: Identifying Camshaft Position Sensor Harness Connector Terminals

Courtesy of AUDI OF AMERICA, INC.

CAMSHAFT POSITION (CMP) SENSOR: TERMINAL 3 MEASURE

Harness connector Terminal	Measure to
3	B+

Specified value: about 10 V

If all specified values are being reached and the LED does not blink (measured between terminal 1 and 2 with starter and connector connected):

Replace Camshaft Position (CMP) sensor.

If specified values are not obtained: