Service & Repair Manual

24-171
Wire for fuel level signal, checking
Notes:
The Engine Control Module (ECM) receives the
fuel level signal from the instrument cluster.
The processed signal enters at terminal 30 of
the ECM and is used to determine the cause of
certain recognized malfunctions (e.g.
combustion misfires).
- Connect VAG1598/31 test box at wiring harness
to ECM, do not connect ECM Page 24-17 .
- Check the following wire connection for open
circuit and short circuit to Ground (GND) and B+:
Test box
VAG1598/31
Socket
Instrument cluster
Terminal
30 Electrical Wiring Diagrams,
Troubleshooting & Component
Locations binder
- Repair open circuit or short circuit if
necessary.
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