audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Camshaft Position Sensor|Testing and Inspection|Page 2430 > < Camshaft Position Sensor|Testing and Inspection
Page 2
background image

-

Connect voltage tester V.A.G. 1527 B between terminal 2 (camshaft position sensor signal) and socket 1 (B+).

NOTE:  On the rear side of the connector the connector sockets are numbered accordingly.

-

Operate starter several seconds.
-

LED must blink

NOTE:  Voltage testers with low current pickup do not extinguish completely between activation of the engine control module, but remain dimly lit
and become noticeably brighter during activation.

If LED does not blink:

Checking voltage supply

-

Disconnect connector from camshaft position sensor.

-

Connect multimeter for a resistance test as follows:

Harness connector terminal

Measure to

1

Engine Ground

-

Turn ignition on.
-

Specification: approx. 5 V

Checking signal wire

-

Connect multimeter for a resistance test as follows:

Harness connector terminal

Measure to

2

Engine Ground

-

Turn ignition on.
-

Specified value: approx. battery voltage

Checking Ground wire

Camshaft Position Sensor|Testing and Inspection|Page 2430 > < Camshaft Position Sensor|Testing and Inspection