A4 Cabriolet L4-1.8L Turbo (AMB) (2005)
Display on VAS 5051:
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Under -1- select diagnostic function "08 - Read measured value block".
Display on VAS 5051 scan tool:
1. Enter display group
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Enter "066" for "display group number 066" in field -2- and confirm entry by pressing -Q- button.
Display on VAS 5051 scan tool:
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Check Brake Light Switch -F- / Brake Pedal Switch -F47- in display field -2-.