20-147
Rapid data transfer
HELP
Enter address word XX
Indicated on display:
- Enter "01" for address word "Engine electronics" and confirm input by
pressing Q button.
-
Press button.
Rapid data transfer
HELP
Select function XX
Indicated on display:
- Enter "03" for function "Output Diagnostic Test Mode (DTM)."
Rapid data transfer
Q
03-Output Diagnostic Test Mode
Indicated on display:
- Confirm input by pressing Q-button.
Output Diagnostic Test Mode EVAP Purge Regulator Valve
-N80
Indicated on display (EVAP canister purge regulator valve -N80)
-
Press button until following display is shown:
Output Diagnostic Test Mode Leak Detection Pump
Indicated on display:
Note:
You can hear the leak detection pump run at the left rear wheel housing
when it is working. This will be difficult to hear. Make sure to be as close
to LDP as possible and to eliminate as much surrounding noise as
possible. The leak detection pump is activated for about 1 minute.
Pa
ge 22 of 65 EVAP s
ystem, servicin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.5
20-156
Checking output wiring (vehicles with
electronic throttle control)
- Connect voltage tester VAG1527B as follows:Electrical connector terminal
Specification
2 Battery Positive
- Initiate Diagnostic Test Mode (DTM) Page 20
-146
.
-
Press button until following display is shown:
Output Diagnostic Test Mode LDP leak test
Indicated on display:
If LED does not blink:
LED must blink
- Switch ignition off.
Pa
ge 31 of 65 EVAP s
ystem, servicin
g
11/18/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.GE04.20.5
