New Beetle L4-1.8L Turbo (AWP) (2003)
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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Rear right wheelhousing liner, removing:
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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