RX 400h FWD V6-3.3L (3MZ-FE) Hybrid (2006)
Power Seat Motor: Testing and Inspection
Power Seat Motor Circuit
DESCRIPTION
When the power seat control switch is operated, a command signal is sent to the position control ECU and switch assembly (power seat control switch
and ECU). The front power seat switch then controls the appropriate seat motor as needed. This memory system does not use a seat position sensor. The
seat position is detected by counting pulses that are output when the motor turns. If there is no pulse output from the motor, the motor will stop
operating. The position control ECU and switch assembly (power seat control switch and ECU) is designed so that any malfunction of the seat memory
system will not interfere with manual seat control. If the position control ECU and switch assembly (power seat control switch and ECU) detects a low
motor speed, abnormal activity, or sudden motor current fluctuation, the system will stop the motor. If the motor operates continuously for 120 seconds
or more, the system will stop the motor until the switch is turned on again.
Wiring Diagram