Jetta Sedan L4-1.9L DSL Turbo (BEW) (2005)
Terminal 3 + socket 52
Terminal 4 + socket 53
Wire resistance: max. 1.5 Ohms
Continue for all vehicles
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Check wires for short circuit to each other, to vehicle Ground (GND) and to B+.
Specified value: Infinite Ohms
If no malfunctions are found in wires:
Vehicles with 80-pin control module
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Disconnect 4-pin connector from Engine Coolant Temperature (ECT) Sensor -G62- with Engine Coolant Temperature (ECT) Sensor -G2- (arrow).
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Perform a resistance measurement at Engine Coolant Temperature (ECT) Sensor -G62- terminal 1 (Ground -GND-) and 3 (signal).
Vehicles with 121-pin control module
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Disconnect connector at coolant temperature sensor.