A4 V6-3.0L (AVK) (2004)
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Check wire connection from Secondary Air Injection (AIR) Pump Relay -J299- (in 3-socket relay carrier in E-box, plenum chamber) via fuse S234
(in fuse holder, position 34) to Fuel Pump (FP) relay for open circuit according to wiring diagram.
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Specified value: Wire resistance max 1.5 Ohm
Check activation of the Secondary Air Injection (AIR) pump relay
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Remove Secondary Air Injection (AIR) pump relay -3-.
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Connect test box to wiring harness of Engine Control Module (ECM); ECM is not connected. See: Computers and Control Systems/Testing and
Inspection/Reading and Clearing Diagnostic Trouble Codes/Scan Tool Connecting/With Generic Scan Tool/Text Box, Connecting For Wiring
Test
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Check the following wire connection for open circuit according to wiring diagram:
Relay carrier in E-box, plenum chamber, position 3.........................................................................................................................................Test box
Terminal...................................................................................................................................................................................................................Socket
6............................................................................................................................................................................................................................46
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Specified value: Wire resistance max 1.5 Ohm
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Also check the wire for short circuit to B+ and Ground (GND).
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Specified value: infinity Ohm (no continuity)
If no malfunctions are detected:
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Replace Secondary Air Injection (AIR) Pump Relay -J299-.
Check voltage supply of the Secondary Air Injection (AIR) pump motor