TT Roadster L4-2.0L Turbo (BPY) (2008)
Leak Detection Pump: Testing and Inspection
Leak Detection Pump (LDP) (V144), checking
Leak Detection Pump (LDP) (V144), checking
Special tools, testers and auxiliary items required
‹› Multimeter.
‹› Wiring diagram.
Test requirements
‹› Fuse (SB7) OK.
‹› The Motronic Engine Control Module (ECM) Power Supply Relay (J271) OK.
‹› The ignition switched off.
Test procedure
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Perform a preliminary check to verify the customers complaint. Refer to => [ replacing ] See: Computers and Control Systems/Engine Control
Module/Testing and Inspection/Engine Control Module (ECM) (J623).
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Remove the left rear wheel housing liner.
Start diagnosis
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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: