volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Leak Detection Pump, Evaporative System|Testing and Inspection|Page 5887 > < Leak Detection Pump, Evaporative System|Testing and Inspection
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If any of the specifications are Not obtained:

-

Replace the Leak Detection Pump (LDP) (-V144- ). Refer to the Repair Information.

If the specified value was obtained:

Checking voltage supply

-

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

-

Using a multimeter, check the Leak Detection Pump (LDP) (-V144-)electrical harness connector terminal 3 for voltage. Connect the negative
multimeter lead to engine ground.

-

Start the engine.

Specified value: Battery voltage.

-

Switch the ignition OFF.

If the specified value was Not obtained:

-

Remove fuse S-243. Using a multimeter, check the Leak Detection Pump (LDP) (-V144-)wiring from terminal 3 to fuse S-243. 

Specified value: 1.5 ohms max

Leak Detection Pump, Evaporative System|Testing and Inspection|Page 5887 > < Leak Detection Pump, Evaporative System|Testing and Inspection