ECO mode AUDI A4 1998 B5 / 1.G APB Engine Evaporative Emission Syst
Page 5 of 6
24-137
Testing activation of Evaporative Emission
(EVAP) Canister Purge Regulator Valve
The diode test lamp should blink.
If the diode test lamp does not blink or lights up continuously: - Connect VAG1527 between diode test lamp sockets 1 (B+) and 2 of
harness connector.
- Start output Diagnostic Test Mode (DTM) and select Evaporative
Emission (EVAP) Canister Purge Regulator Valves -N80 Page 01
-
75
. (To initiate DTM a second time, the engine must be started and
switched off)
- Connect VAG1598/31 test box to multi-pin harness connector for
engine control module. Do not connect to the engine control module
itself Page 24
-20
.
Pa
ge 5 of 6 Eva
porative Emission
(EVAP
) system, checkin
g
11/22/2002 htt
p://127.0.0.1:8080/audi/servlet/Dis
play?action=Goto&t
yp
e=re
pair&id=AUDI.B5.FU04.24.3