volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Instrument Panel Voltage Regulator|Testing and Inspection|Page 1982 > < Air Bag(s) Arming and Disarming|Service and Repair
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Instrument Panel Voltage Regulator: Testing and Inspection

Voltage Stabilizer, Checking

NOTE:  Only check when fuel and coolant temperature gauges both indicate false readings. Do not disconnect battery ground strap; instrument cluster
multi-pin connector remains connected.

Voltage supply, checking

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Remove right-hand instrument.

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Switch on ignition.

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Connect voltmeter between terminal 15 -a- and ground -b-

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Specification: approx. battery voltage

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If specification not achieved, check wiring to instrument cluster using wiring diagram.

Output voltage, checking

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Connect voltmeter between outlet -c- and ground -b-

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Specification: 9.5 - 10.5 V

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If specification not achieved, replace voltage stabilizer.

Instrument Panel Voltage Regulator|Testing and Inspection|Page 1982 > < Air Bag(s) Arming and Disarming|Service and Repair