A6 Quattro Sedan V6-3.0L (AVK) (2002)
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Connect VAG1598/31 test box to harness connectors of wiring harness (do not connect ECM). Connect Ground (GND) clip at test box (not visible
in illustration) to Ground (GND).
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Check the following wire connection for open circuit and short circuit to Ground (GND) and B+:
Relay carrier in E-box, plenum
VAG1598/31 test box
chamber, position 3
Terminal
Socket
6
46
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Repair open circuit or short circuit if necessary.
If no malfunctions are detected:
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Replace Secondary Air Injection (AIR) pump relay -Secondary Air Injection (AIR) Pump Relay -J299-.