RS 4 Quattro Sedan V8-4.2L (BNS) (2007)
/Page-1384006.png)
A Output diagnostic test mode waiting, Advancing by switching required
1
Evaporative Emission (EVAP) Canister Purge Regulator Valve (N80)
-
Press the -> button repeatedly, until leak detection pump for fuel system is activated.
‹› LED must blink.
If LED does not blink:
-
End function "005 - output Diagnostic Test Mode (DTM)" by pressing <- button.
-
Select diagnostic function "022 - End output" in selection.
-
Switch off ignition.
-
Connect Adapter Cable, 121-Pin (V.A.G 1598/31 ) (test box) to wiring harness connectors, do not connect engine control module. Connect
Ground (GND) clip at test box to Ground (GND) (not visible in illustration).
CAUTION!
To avoid damaging electronic components, switch to the corresponding measuring range and observe all test conditions before connecting
the test leads.
-
Check the following wire connection for open circuit and short circuit to Ground (GND) and B+:
