A4 Quattro Wagon L4-2.0L Turbo (CAEB) (2009)
Leak Detection Pump: Testing and Inspection
Leak Detection Pump, Checking
Observe all safety precautions: => [ Safety Precautions ] See: Computers and Control Systems/Service Precautions/Safety Precautions
View clean working conditions: => [ Clean Working Conditions ] See: Computers and Control Systems/Service Precautions/Clean Working
Conditions
Use only gold-plated terminals when servicing any component with gold-plated electrical harness connector terminals.
For wiring diagrams, component locations, and connector views, Refer to the applicable wiring diagram.
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 => [ Preliminary Check ] See: Computers and Control Systems/Testing
and Inspection/Scan Tool Testing and Procedures/Preliminary Check
Start diagnosis
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Remove the left rear wheel housing liner. Refer to appropriate service manual.
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Disconnect the Leak Detection Pump (LDP) (V144 ) electrical harness connector - 2 -.
Checking internal resistance
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Using a multimeter, check the Leak Detection Pump (LDP) (V144) for resistance as follows: