volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Engine Coolant Temperature (ECT) Sensor (On Radiator), Checking|Page 1718 > < Diagram Information and Instructions|Page 1715
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Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
Engine Coolant Temperature (ECT) Sensor (On Radiator), Checking

Engine Coolant Temperature (ECT) Sensor (on Radiator), Checking

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

Recommended special tools and equipment

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V.A.G 1526 multimeter or V.A.G 1715 multimeter

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V.A.G 1594 connector test kit

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Wiring diagram

Test requirements

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Fuses on E-box in engine compartment, left side, must be OK.

NOTE:  Fuses on this fuse holder are labelled "SB" in the wiring diagram.

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Fuses on fuse holder in instrument panel, left side, must be OK.

NOTE:  Fuses on this fuse holder are labelled "SC" in the wiring diagram.

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Ground (GND) connections between engine and chassis must be OK.

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Ignition switched off.

Test sequence

Observe safety precautions.
Observe rules for cleanliness.

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Remove noise insulation

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Disconnect 2-pin connector -arrow- from Engine Coolant Temperature (ECT) Sensor (on Radiator) -G83-.

Engine Coolant Temperature (ECT) Sensor (On Radiator), Checking|Page 1718 > < Diagram Information and Instructions|Page 1715