volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Oxygen Sensor After Catalyst|Page 2290 > < Oxygen Sensor After Catalyst|Page 2288
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Connect multimeter between ECM connector terminals 2 and B+ using jumper wires from VW 1594 adapter kit.

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Measure Voltage supply when display group 121, Display field 4, 1st position from left = 1.
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specification: 11.0 to 14.5 Volts

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Measure Voltage supply when display group 121, Display field 4, 1st position from left = alternating 0 and 1.
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specification: between 0.0 and 12.0 Volts and fluctuating

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Switch ignition off.

If specification not obtained:

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Connect VAG 1598/18 Test Box to ECM wiring harness.

Oxygen Sensor After Catalyst|Page 2290 > < Oxygen Sensor After Catalyst|Page 2288