Passat V6-2.8L (ATQ) (2004)
Leak Detection Pump: Testing and Inspection
With Generic Scan Tool
Leak Detection Pump (LDP) -V144-, 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 kit
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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 wheel housing 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.
Specified value: 17.5 to 19.5 ohms