A6 Sedan V6-2.8L (AHA) (1998)
Air Injection Pump Relay: Testing and Inspection
Checking Secondary Air Injection (AIR) Pump Relay
Secondary Air Injection (AIR) System, Checking
Checking secondary Air Injection (AIR) pump relay -J299-
NOTE: The relay and the fuse for the air pump are located in the E-box in the left side of the plenum chamber
Test requirements
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Fuel pump relay OK
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Fuse for secondary Air Injection (AIR) pump relay -J299- OK
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Ignition switched off
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Remove secondary Air Injection (AIR) pump relay -J299- from relay panel.
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Connect VAG1527B LED voltage tester between terminal 8 (B+) of relay socket and Ground (GND).
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LED voltage tester must light up
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Connect VAG1527B LED voltage tester between terminal 4 (B+) of relay socket and Ground (GND) and operate starter motor.
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LED voltage tester must light up
If LED voltage tester does not light up:
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Repair open circuit according to applicable wiring diagram.
If LED voltage tester lights up:
Checking triggering of secondary Air Injection (AIR) pump relay -J299-
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Switch ignition on.