Touareg V8-4.2L (BHX) (2004)
Checking wiring
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Connect test box to control module wiring harness , connect test box for wiring test.
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Check wires between test box and 2-pin connector for open circuit according to wiring diagram.
Terminal 1+socket 93
Terminal 2+socket 108
Wire resistance: max. 1.5 ohms
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Also check wires for short circuit to each other, to vehicle Ground (GND) and to B+.
Specified value: infinite ohms
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Erase DTC memory of Engine Control Module (ECM) , Diagnostic mode 4: Reset/erase diagnostic data.
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Generate readiness code.
If no malfunctions are found in wires:
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Replace Engine Coolant Temperature (ECT) Sensor (G62).
CAUTION!
‹› The cooling system is under pressure.
‹› Danger of scalding when opening!
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Erase DTC memory of Engine Control Module (ECM) , Diagnostic mode 4: Reset/erase diagnostic data.
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Generate readiness code.
If no malfunctions are detected in the wires and the resistance values are OK:
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Replace Motronic Engine Control Module (ECM) (J220).