Beetle L4-2.0L (AEG) (2000)
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Remove protective cover -arrows- and disconnect 4-pin harness connector (black) to Oxygen sensor before Three Way Catalyst G39.
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Check Oxygen sensor heater for continuity between connector terminals 1 and 2.
If open circuit in Oxygen sensor heater
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Replace Oxygen sensor G39.
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Display the Readiness code. Refer to "Monitors, Trips and/or Drive Cycle (Readiness Codes)/Displaying Readiness Code", See: Computers and
Control Systems/Testing and Inspection
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If DTC memory was erased or if the ECM was disconnected from Battery + , set the Readiness code. Refer to "Monitors, Trips and/or Drive Cycle
(Readiness Codes)/Setting Readiness Code", See: Computers and Control Systems/Testing and Inspection
If heater has continuity
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Switch Fluke 83 multimeter to Voltage range