volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Leak Detection Pump, Evaporative System|Testing and Inspection|Page 3149 > < Leak Detection Pump, Evaporative System|Testing and Inspection
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If the specifications was not obtained:

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Replace the Leak Detection Pump (LDP) (-V144- ).

If the specified values are obtained:

Checking voltage supply

‹› The voltage for the Leak Detection Pump (LDP) (-V144- ) is supplied via the Power Supply Relay (terminal 30, B+) (J317).

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Check the Leak Detection Pump (LDP) (-V144-) for voltage.

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Using a Multimeter, check the Leak Detection Pump (LDP) (-V144-) electrical harness connector terminal 3 to Ground (GND) for voltage.

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Operate the starter briefly.

Specified value: battery voltage.

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Switch the ignition off.

If the specified value was not obtained:

Leak Detection Pump, Evaporative System|Testing and Inspection|Page 3149 > < Leak Detection Pump, Evaporative System|Testing and Inspection