GTI V6-2.8L (BDF) (2002)
Indicated on display: (1...4 = display zones)
Read measured value block 41
->
1
2
3
4
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Check the status of the Oxygen Sensor (O2S) heating in display zone 2: Display: Htg.bC.ON / Htg.bC.OFF (alternating):
NOTE: The Oxygen Sensor (O2S) heating may be switched on or off depending on the operating conditions of the engine, therefore the display in
display zone 2 may show "Htg.bC.ON" or alternating from "Htg.bC.ON" to "Htg.bC.OFF".
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Press the -> button.
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Press buttons -0- and -6- for function "End output" and confirm entry with the -Q- button.
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Switch off ignition.
If the display does not indicate as described:
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Remove protective cover -arrows-and disconnect 6-pin connector (black) -1- to Heated Oxygen Sensor (HO2S) -G39-.
Checking resistance
If the specification is not obtained:
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Check sensor heater wire resistance at connector terminals 3 and 4 to Oxygen Sensor (O2S). Specification: 2.5 to 10.0 ohms (at room
temperature).
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Replace Oxygen Sensor (O2S) 1, Bank 1 before Three Way Catalytic Converter (TWC) -G39-, item 20.
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Check DTC memory, repair malfunctions if necessary and then erase DTC memory.
See: Computers and Control Systems/Testing and Inspection/Reading and Clearing Diagnostic Trouble Codes/Reading Diagnostic Trouble Codes
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Erase learned values and adapt Motronic Engine Control Module (ECM) -J220- again.
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Read readiness code. If the DTC memory has been erased or the Motronic Engine Control Module (ECM) -J220- was disconnected from battery
positive (B+), the readiness code must be generated again.
See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If the specification is obtained:
Checking voltage supply