Jetta GLS Wagon L4-2.0L (AZG) (2002)
Leak Detection Pump: Testing and Inspection
With Generic Scan Tool
Check Leak Detection Pump (LDP)
Recommended special tools and equipment
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VAG1526 multimeter or VAG1715 multimeter
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VAG1594 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 rear right wheelhouse liner.
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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 ... 720 Ohms
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Measure resistance between terminals 2 + 3 of diagnostic pump. Specified value: 12,5 ... 19,5 Ohms
If specified values are not obtained:
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Replace Leak Detection Pump (LDP) -V144-, item 8