volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Leak Detection Pump (LDP) V144, Checking|Page 6670 > < Leak Detection Pump (LDP) V144, Checking|Page 6668
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Leak Detection Pump: Testing and Inspection
Leak Detection Pump, Checking

Leak Detection Pump, Checking

Special tools, testers and auxiliary items required

‹› Multimeter.

‹› Wiring diagram.

Test requirements

‹› The Leak Detection Pump (LDP) (V144) fuse OK.

‹› The ignition switched off.

Test procedure

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Perform a preliminary check to verify the customers complaint. Refer to --> [ Engine Control Module, Replacing ] See: Computers and Control
Systems/Engine Control Module/Service and Repair/Removal and Replacement/Engine Control Module, Replacing.

Start diagnosis

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Remove the right rear wheel housing liner.

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Disconnect the Leak Detection Pump (LDP) (V144) electrical harness connector - 3 -.

Checking internal resistance

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Using a Multimeter, check the Leak Detection Pump (LDP) (V144) for resistance as follows: 

Leak Detection Pump (LDP) V144, Checking|Page 6670 > < Leak Detection Pump (LDP) V144, Checking|Page 6668