Touareg V10-5.0L DSL Turbo (BKW) (2004)
Terminal 4 + socket 51
Wire resistance: max. 1.5ohms
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Also check the wire for short circuit to B+ and Ground (GND).
Specified value: infinite ohms
If no malfunctions are found in wires:
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Replace Engine Control Module (ECM) (J623) --> [ Engine Control Modules, Replacing ] See: Testing and Inspection/Component Tests and
General Diagnostics/Engine Control Modules, Replacing.
Oxygen Sensor Heater 2 (Z28) Test Sequence
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Disconnect 6-pin harness connector - A - to Heated Oxygen Sensor (HO2S) 2 (G108).
Checking Resistance
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Check resistance for sensor heater at connector to oxygen sensor terminal 3 +4.