New Beetle Convertible L5-2.5L (BPS) (2006)
Coolant Temperature Sensor/Switch (For Computer): Testing and Inspection
Diagnostic Procedures
Engine Coolant Temperature Sensor 1, Checking
CAUTION!
‹› Cooling system is under pressure.
‹› Danger of scalding when opening!
‹› The ECT (G62) Sensor 1 and ECT Gauge sensor are combined into a single unit. The unit is mounted in the thermostat housing and has a 4 wire
connector.
‹› Use only gold-plated terminals when servicing terminals in the electrical harness connector of Engine Coolant Temperature (ECT) Sensor (G62 ).
Special tools, testers and auxiliary items required
‹› Multimeter.
‹› jumper wire.
‹› Wiring diagram.
Test requirements
‹› The Motronic Engine Control Module (ECM) ( J220 ) fuses OK.
‹› Battery voltage at least 12.5 volts.
‹› All electrical consumers such as, lights and rear window defroster, switched off.
‹› Vehicles with automatic transmission, shift selector lever into position " P" or "N".
‹› A/C switched off.
‹› Ground connections between engine/transmission/chassis OK.
‹› Ignition switched OFF.
‹› Engine COLD.
Test procedure
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Perform a preliminary check to verify the customers complaint. Refer to => [ Preliminary Check ] See: Testing and Inspection/Scan Tool Testing
and Procedures/Preliminary Check
Start diagnosis
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Connect the scan tool.
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Switch the ignition ON.
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Using the scan tool, check the coolant temperature:
If the specified value was Not obtained:
-
Continue test according to the following table: