volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Oxygen Sensor Heater After Catalytic Converter, Checking|Page 6256 > < Oxygen Sensor Heater After Catalytic Converter, Checking|Page 6254
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Also check wires for short circuit to B+ or Ground (GND).

Specified value: infinite ohms

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Erase DTC memory of Engine Control Module (ECM) , Diagnostic mode  4: Reset/erase diagnostic data.

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Generate readiness code.

If no malfunctions are found in wires:

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Replace Motronic Engine Control Module (ECM) (J220).

Oxygen Sensor Heater After Catalytic Converter, Checking|Page 6256 > < Oxygen Sensor Heater After Catalytic Converter, Checking|Page 6254