volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Engine Temperature Sensor > < Sensor Operation|Page 3877
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Engine Speed Sensor: Testing and Inspection

 

Harness Connector Terminal I.D.

-

With the ignition "OFF", remove the WHITE 3-pin harness connector from the Engine Speed Sensor.

 

Engine Sensor Harness Connector

-

Check resistance between terminals 1 and 2 of sensor.

^

SHOULD BE: 500-700 ohms.

^

IF NOT: Replace Engine Speed Sensor.

 

-

Check resistance between terminals 1 and 3 of sensor.

^

SHOULD BE: infinite ohms (no continuity).

^

IF NOT: Replace Engine Speed Sensor (even if resistance is very high).

 

-

Check resistance between terminals 2 and 3 of sensor.

^

SHOULD BE: infinite ohms (no continuity).

^

IF NOT: Replace Engine Speed Sensor (even if resistance is very high).

Engine Temperature Sensor > < Sensor Operation|Page 3877