RS 6 V8-4.2L Turbo (BCY) (2003)
![background image](/audi/rs_6/v8-4.2l_turbo_(bcy)/Page-2293003.png)
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Remove cover for electronics box in plenum chamber (arrows).
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Disconnect secondary air pump relay from relay position 1.
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Connect multimeter (voltage measurement range) as follows:
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Specification: approximate battery voltage
If specification is not obtained:
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Perform following tests (marked with dots):