buttons AUDI A6 1997 C5 / 2.G AHA Engine Readiness Code User Guide

01-90

Step 9: Secondary Air Injection (AIR) system
diagnosis

- Start engine and let run at idle.Initiate basic setting
HELP
Input displa
y group number XXX

Indicated on display
- Press buttons -0-, -7- and -7- to input display group number 77 (077),
and press -Q- button to confirm input.
System in Basic Setting 77
1
2
3
4

Indicated on display (1-4 display fields)
If the diagnosis is initiated by the ECM, the display changes from "Test
OFF" to "Test ON" in display field 4. - Let engine continue to run at idle until the specified value "Syst. OK" is
indicated in display field 4.
Pa
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