RS 6 V8-4.2L Turbo (BCY) (2003)
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Open quick-release fasteners -1- and -2- and lift off engine cover panel (arrows).
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Unplug connector (arrow) on Charge Air Pressure Sensor -G31-.
Testing voltage supply
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Connect multimeter (voltage measurement range) between contacts 1 and 3 on connector.
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Switch on ignition.
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Specification: approximately 5 Volts
If specification is not attained
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Connect test box V.A.G 1598/31 to wiring harness connectors; do not connect engine control unit. Attach ground clip of test box to chassis (not
shown in illustration).
WARNING: To prevent damage to electronic components, switch to respective measuring range before connecting measuring cable and
observe test prerequisites.