volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Heated Oxygen Sensor (HO2S) -G39- Before Converter, Checking|Page 3972 > < Heated Oxygen Sensor (HO2S) -G39- Before Converter, Checking|Page 3970
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Check wiring between test box and 4 pin connector for open circuit according to wiring diagram.
Contact 2 + socket 27
Wire resistance: Max. 1.5 Ohm

If the specification is obtained:

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Check wiring from contact 1 to Fuel Pump (FP) relay -J17- according to wiring diagram.

Heated Oxygen Sensor (HO2S) -G39- Before Converter, Checking|Page 3972 > < Heated Oxygen Sensor (HO2S) -G39- Before Converter, Checking|Page 3970