Touareg V10-5.0L DSL Turbo (BWF) (2006)
Heated Oxygen Sensor 2 (G39), Test Sequence
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Connect diagnostic tester.
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Start engine and let it run at idle.
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Under address word 33, select "Diagnostic mode 1: Check measured values."
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Select the measuring value "PID 36: Oxygen sensor value Bank 1 Sensor 1".
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Check specified value of oxygen sensor:
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If a voltage greater than 0.0 volts is displayed, oxygen sensor is activated.
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End diagnosis and switch ignition off.
If specified values are not obtained:
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Check Control Module Wires.
Control Module Wires, Checking
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Connect test box ((VAG1598/42)) to Engine Control Module (ECM) (J623) wiring harness using adapter cable ((VAG1598/39-2)) , connecting
test box for wiring test.
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Disconnect 6-pin harness connector - B - to Heated Oxygen Sensor (HO2S) (G39).
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Check wires between test box and 6-pin connector for open circuit according to wiring diagram.