New Beetle GLS L4-1.8L Turbo (AWV) (2001)
-
Set multimeter to measure resistance and connect it to terminals 3 + 4 of connector to oxygen sensor. Check oxygen sensor heating for closed
circuit.
Specification: 2.5...10 Ohms (at room temperature)
If it is determined that oxygen sensor heating has an open circuit:
-
Replace Heated Oxygen Sensor (HO2S) -G39-.
-
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
-
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
-
Set multimeter to measure voltage and connect to terminal 3 (connector to Motronic Engine Control Module (ECM) -J220-) and Ground (GND).
-
Start engine and run at idling speed.
-
Measure voltage supply:
Specification: 11.0 to 14.5 V
If the specification is not obtained:
-
Check wiring from terminal 3 to Fuel Pump (FP) Relay -J17- using Electrical Wiring Diagram.
If the specification is obtained:
-
Connect multimeter using aux. cables from VAG 1594 to measure voltage at terminals 3 and 4 (connector to Motronic Engine Control Module
(ECM) -J220-).
-
Measure voltage supply and note display group 41, display zone 2.
Display: Htg.bC.ON: