New Beetle Turbo S L4-1.8L Turbo (AWP) (2002)
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Set multimeter to check resistance and connect it to terminals 1 + 2 of Oxygen Sensor connector. Check Oxygen Sensor heating for continuity
If it is determined that Oxygen Sensor heating has an open circuit:
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Replace Oxygen Sensor (O2S) after Three Way Catalytic Converter (TWC) -G130-
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Check DTC Memory, if necessary, repair any malfunctions and then Erase DTC Memory, Checking and Erasing DTC Memory. See: Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes
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Read readiness code. If DTC memory has been erased or Motronic Engine Control Module (ECM) -J220- was disconnected from battery positive,
readiness code must be generated again.
See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
See: Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If oxygen sensor heating has continuity:
Checking voltage supply
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Set multimeter to measure voltage and connect to terminal 1 (connector to Motronic Engine Control Module (ECM) -J220-) and Ground (GND).
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Start engine and run at idling speed.
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Check voltage supply:
Specification: 11.0 to 14.5 V
If no voltage is present:
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Check wiring from terminal 1 to Fuel Pump (FP) Relay -J17- according to Electrical Wiring Diagram.
If the specification is obtained:
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Connect multimeter using auxiliary cables from VAG 1594 to measure voltage at terminals 1 + 2 (connector to Motronic Engine Control Module
(ECM) -J220-).
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Measure voltage supply and observe display group 41, display zone 4.
Display: Htg.aC.ON:
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Specification: 11.0 to 14.5 V
Display: Htg. aC.ON/Htg.aC.OFF (alternating):