A4 Cabriolet L4-1.8L Turbo (AMB) (2005)
/Page-1074005.png)
-
Check wiring of relay carrier, electronics box, plenum chamber, position 2, terminal 8, to connector of ignition coil terminal 1.
-
Check Motronic ECM power supply relay -J271-.
Checking activation of power output stages
-
Disconnect all injector connectors.
NOTE: It is important to ensure that no fuel is injected during the test, as this would damage the catalytic converter. Therefore, the connectors on
the injectors must be disconnected.
-
Disconnect 4-pin connector -1- from ignition coil -2-.
-
Connect LED voltage tester V.A.G 1527 B to terminals -2- and -3- of 4-pin ignition coil connector.
-
Operate starter briefly.
-
LED voltage tester must flash (flashes briefly).
If LED does not flash:
-
Connect test box V.A.G 1598/31 to wiring harness for ECM; do not connect ECM. See: Computers and Control Systems/Testing and
Inspection/Scan Tool Testing and Procedures/Scan Tool Testing/With Generic Scan Tool/Scan Tool Connecting/Test Box, Connecting For
Wiring and Component Test
