[Image of a Bosch alternator wiring diagram]
Key:
* B+: Positive battery terminal
* D+: Output terminal to the electrical system
* F: Field terminal (excitation)
* W: Warning light terminal/alternator sense
* IG: Ignition terminal (optional)
Connections:
1. Connect the B+ terminal to the positive battery terminal.
2. Connect the D+ terminal to the electrical system.
3. Connect the F terminal to the field terminal on the voltage regulator.
4. Connect the W terminal to the warning light terminal/alternator sense on the instrument cluster.
5. Connect the IG terminal to the ignition switch (optional).
Note: The IG terminal is not always present on Bosch alternators. If it is not present, it is not necessary to connect it.
