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46 Volt System
The RX450h is equipped with a 46 Volt electrical system that powers the
Electric Power Steering (EPS) assist motor and the optional Active Stabilizer
Suspension System motors for the front and rear stabilizer bars.
•
The 46 Volt electrical system does not contain a storage battery. It is
powered by converting high voltage battery power at the DC-DC converter
located under the center console.
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The 46 Volt wires are routed from the DC-DC converter to the EPS ECU
near the steering column under the dash and the optional active stabilizer
ECUs outside the cabin and under the cargo area.
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If the HV battery pack malfunctions, backup power is provided to the EPS
motor by boosting power from the 12 Volt electrical system.
NOTE:
46 Volts has a higher arc potential than 12 Volts.
46 Volt Electric Power Steering System
Optional 46 Volt Active Stabilizer Suspension System
Assist Motor
Electric
Power
Steering ECU
Front Active Stabilizer Motor
Rear Active Stabilizer Motor
Active Stabilizer Control ECU
DC-DC Converter
