Passat Sedan 4Motion W8-4.0L (BDP) (2002)
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
Recommended special tools and equipment
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VAG1526 multimeter or VAG1715 multimeter
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VAG1594 connector test kit
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Wiring diagram
Test requirements
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The respective fuses of Motronic Engine Control Module (ECM) -J220- must be OK:
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Fuses -1, 2, 3, 4 and 7- in protective housing (plenum chamber, left) must be OK:
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Ground (GND) connections between engine and chassis must be OK.
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Ignition switched off.
Test sequence
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Disconnect 2-pin connector from Engine Coolant Temperature (ECT) Sensor (on Radiator) -G83- (arrow).
Checking resistance