volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Heated Oxygen Sensor Control Test: After Converter|Page 3289 > < Heated Oxygen Sensor Control Test: After Converter
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Evaluating Display Group 116.

Relevance Of Values In 8-digit Number Block.

Checking Basic Voltage

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Separate 4-pin connector -2- (brown) to HO2S 2 -G108- (after three way catalytic converter).

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Connect multimeter using test leads from VW 1594 to measure voltage between terminals 3 and 4 (ECM side of harness connector).

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Start engine and measure basic voltage.
Specification: 0.40-0.50 volts

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Switch ignition off.

If the specification is not attained:

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Check HO2S wiring See below.

If the specification is attained:

Heated Oxygen Sensor Control Test: After Converter|Page 3289 > < Heated Oxygen Sensor Control Test: After Converter