RS 6 V8-4.2L Turbo (BCY) (2003)
Checking voltage supply
Requirements for test:
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Fuse for secondary air inlet valve OK
Refer to Wiring Diagram
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Fuel pump relay OK
Note: Secondary Air Injection (AIR) Solenoid Valve -N112- receives its power supply via fuel pump relay.
Part 1
Part 2
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Connect voltage tester V.A.G 1527 B as follows:
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Operate starter briefly.
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LED should light up.
If LED does not light up:
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Test for open circuit in wiring connection between fuel pump relay and contact 1 on connector via fuse (refer to wiring diagram).
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Eliminate open circuit in wiring (refer to wiring diagram).
If LED lights up:
Checking activation
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Connect voltage tester V.A.G 1527 B to contact 1 (positive) and contact 2 of connector.
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Vehicle diagnostic, testing and information system VAS 5051 is connected; vehicle system "01 - Engine electronics" is selected. Ignition must be
switched on.