Touareg V8-4.2L (BHX) (2004)
‹› Oxygen Sensor (O2S) Behind Three Way Catalytic Converter (TWC) (G130), bank 1, 4-pin harness connector 1-,
‹› Oxygen Sensor (O2S) 2 Behind Three Way Catalytic Converter (TWC) (G131), bank 2, 4-pin harness connector 3-,
‹› Bank 1 = Cylinder bank 1, in direction of travel, right.
‹› Bank 2 = Cylinder bank 2, in direction of travel, left.
Checking voltage supply and wiring to control module
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Connect multimeter to terminals 1 +2 of connector to Engine Control Module (ECM) for voltage measurement.
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Start engine, and let run at idle.
Specified value: at least 7.0 V
If specified value is obtained:
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Switch ignition off.
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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 specified value is not obtained:
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Connect multimeter to terminal 1 of connector to Engine Control Module (ECM) + Ground (GND) for voltage measurement.