Circuit Description
WARNING: This page is about a different car, the 2005 Toyota Sienna. However, it is still accessible from the selected car via links, so may be relevant.
The radio and navigation assy receives a vehicle speed signal from the combination meter assy and information about the GPS antenna, and then adjusts vehicle position.
The radio and navigation assy performs switch operation control during driving by receiving the vehicle speed signal.
HINT:
- A voltage of 12 V or 5 V is output from each ECU and then input to the combination meter. The signal is changed to a pulse signal at the transistor in the combination meter. Each ECU controls the respective system based on the pulse signal.
- If a short occurs in an ECU, all systems in the diagram below will not operate normally.