lock AUDI A8 1999 D2 / 1.G ATQ Engine Readiness Code Workshop Manual

01-76


Readiness code
The readiness code appears as an 8-digit display
in measuring value block 086, display field 1.
Each of the 8 digits is allocated to a specific
exhaust related system.
During a test sequence (which must be carried
out in its entirity), On Board Diagnostic (OBD)
checks the function of each of these systems and
then changes the character assigned to it in the
8-digit display from a "1" to a "0".
When the readiness code is generated after a
successfully completed test sequence, it reads "0
0 0 0 0 0 0 0" (measuring value block 086,
display field 1).
If a single test is completed entirely, but indicated
as "not OK", a DTC will be stored in DTC
memory. Check DTC Memory Page 01
-15
.
Pa
ge 1 of 47 Readiness code
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.01.7

01-78

Readiness code, checking


Test sequence

- Connect VAS5051 tester or VAG1551 scan tool
and select the control module for engine
electronics using "address word" 01 Page 01
-
9 .

Ignition must remain switched on for this.Rapid data transfer
HELP
Select function XX

When indicated on display:
- Press buttons -0- and -8- to select "Read Measuring Value Block" and
press -Q- button to confirm input.
Read Measuring Value Block
Q
Input displa
y group number XXX

When indicated on display:
- Press buttons -0-, -8- and -6- to select "display group number 086" and
press -Q- button to confirm input.
Read Measuring Value Block 86
1
2
3
4

When indicated on display:
- Check readiness code in display field 1

Specification: 0 0 0 0 0 0 0 0
Pa
ge 3 of 47 Readiness code
11/23/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU05.01.7