volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Heated Oxygen Sensor Control Test: After Converter|Page 3422 > < Heated Oxygen Sensor Control Test: After Converter|Page 3420
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Relevance Of Values In 8-digit Number Block

Continuation

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Separate 4-pin connector -1- (black) to HO2S -G39- (before three way catalytic converter).

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Connect multimeter with test leads from VW 1594 to measure resistance at terminals 1 and 2 on connector to HO2S.

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Check the resistance value.
Specification: 0.0-24.2 ohms 

If The Specification Is Not Attained:

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Replace HO2S -G39- (before three way catalytic converter).

If The Specification Is Attained:

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Check relevance table above, for value of O2S control status, display group 120, display field 4, 1st position from left.

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Set multimeter to voltage measurement range.

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Connect multimeter using test leads from VW 1594 to measure voltage between terminals 1 and 2 (ECM side of harness connector).

Heated Oxygen Sensor Control Test: After Converter|Page 3422 > < Heated Oxygen Sensor Control Test: After Converter|Page 3420