28-37
Test requirements:
Fuses for engine electronics OK
Electrical Wiring Diagrams, Troubleshooting &
Component Locations
Battery voltage at least 12.7 V
Generator OK
Test sequence
- Connect VAG1598/31 test box at wiring harness
to Engine Control Module (ECM), do not connect
ECM Page 24
-19
.
- Switch ignition on.
Note:
The plus voltage supply for the Engine Control
Module (ECM) travels via terminal 3 and 121
(terminal 15) as well as terminal 62 (terminal
30).
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