Passat Sedan V6-2.8L (ATQ) (2000)
Leak Detection Pump: Testing and Inspection
With Generic Scan Tool
Leak detection pump (LDP), checking
Recommended special tools and equipment
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V.A.G 1526 multimeter or V.A.G 1715 multimeter
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V.A.G 1594 Connector test set
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Wiring diagram
Test requirements
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The respective fuses of Leak detection pump (LDP) -V144- must be OK:
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Ignition switched off.
Test sequence
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Remove wheelhousing liner, rear left.
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Disconnect 3-pin connector of Leak detection pump (LDP) -V144- (arrow).
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Measure resistance between terminals 1 + 3 of diagnostic pump.
Specified value: 640 to 720 Ohms
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Measure resistance between terminals 2 + 3 of diagnostic pump.