Beetle L4-2.0L (AEG) (2000)
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Disconnect pressure hose at Secondary Air Injection (AIR) pump motor (arrow).
NOTE: To disengage, compress the buttons at the hose coupling.
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Connect Secondary Air Injection (AIR) Pump Motor to the B+ and Ground (GND) terminals of the battery using the respective adapter cables.
The Secondary Air Injection (AIR) Pump Motor must start up and air must escape at compressed-air connection (arrow).
If the motor does not start up, or no air or only very little air escapes:
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Disconnect connection between Secondary Air Injection (AIR) Pump Motor and battery.
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Replace Secondary Air Injection (AIR) Pump Motor -V101-:
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Vehicles with engine code AEG, AVH, AZG, item 8,
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Vehicles with engine code BDC, item 6.
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Erase DTC memory of Engine Control Module (ECM), Diagnostic mode 4: Reset/erase diagnostic data.
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Generate readiness code. See: Computers and Control Systems/Testing and Inspection/Monitors, Trips, Drive Cycles and Readiness Codes
If motor starts, and air escapes:
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Disconnect connection between Secondary Air Injection (AIR) Pump Motor and battery.
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Remove Secondary Air Injection (AIR) pump relay from relay carrier in protective housing for control modules:
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Vehicles with engine code AEG, AVH, AZG, item 4,
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Vehicles with engine code BDC, Fig. 1.
NOTE:
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Remove battery Ground (GND) strap if tools are necessary for removal of relays or control modules from the relay carrier.
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Obtain radio code for radios with anti-theft coding before disconnecting battery.
Continuation for all vehicles
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Check wire between terminal 2 of relay carrier and terminal 2 of 2-pin connector of Secondary Air Injection (AIR) Pump Motor for open circuit
according to wiring diagram. Wire resistance: max. 1.5 Ohms
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Also check the wire for short circuit to B+ and Ground (GND). Specified value: Infinite Ohms
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Check wire between 2-pin connector terminal 1 and Ground (GND) for open circuit according to wiring diagram. Wire resistance: max. 1.5
Ohms
If no malfunctions are found in wires:
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Replace Motronic Engine Control Module (ECM) -J220-.