Passat Sedan 4Motion W8-4.0L (BDP) (2002)
Air Injection Pump: Testing and Inspection
Secondary Air Injection (AIR) pump motor, checking
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 Motronic Engine Control Module (ECM) -J220- must be OK.
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Fuses -1, 2, 3, 4 and 7- in protective housing (plenum chamber, left) must be OK.
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Secondary Air Injection (AIR) Pump Relay -J299- (-6-) must be OK, check.
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Fuel Pump (FP) Relay -J17- must be OK, check.
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Battery voltage must be at least 11.5 Volts.
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All electrical consumers such as, for example, lights and rear window defroster must be switched off.
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Ignition switched off.
Test sequence
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Remove front noise insulation.
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Disconnect 2-pin connector -1- from Secondary Air Injection (AIR) Pump Motor -V101- (-2-).
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Disconnect pressure hose (arrow) between Secondary Air Injection (AIR) Pump Motor and connecting line.