Touareg V10-5.0L DSL Turbo (BKW) (2004)
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End diagnosis and switch ignition off.
Check wires to control module
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Connect test box (1598/42) to Engine Control Module (ECM) -J623-wiring harness using adapter cable (V.A.G 1598/39-1). Refer to Connecting
test box for wiring test. See: Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/Test Box, Connecting
For Wiring Test
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Disconnect 2-pin connector -1- from Engine Coolant Temperature (ECT) Sensor -G62-.
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Check wires between test box and 2-pin connector for open circuit according to wiring diagram.
Terminal 1 + socket 52
Terminal 2 + socket 53
Wire resistance: max. 1.5 ohm
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Also check wires for short circuit to each other, to vehicle Ground (GND) and to B+.
Specified value: infinite ohm
If no malfunctions are found in wires:
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Measure resistance between terminals on sensor.
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See diagram for specified value
Range A displays resistance values for the temperature range of 0 to 50 degree C, range B displays resistance values for the temperature range of 50 to
100 degree C.