Circuit Operation
This circuit supplies the power to the vacuum pump. The battery positive voltage is supplied to the autocruise control vacuum pump by turning on the transistor at terminal number 16 of the auto-cruise control-ECU. The conditions for turning on the transistor at terminal number 16 of the auto-cruise control-ECU are as follows.
- Ignition switch "ON."
- Auto-cruise control main switch "ON."
- Stoplight switch ON.