Wiper And Washer System System Diagram

Body Electrical. Lexus Is250, Is220D. Gse20 Ale20
Wiper And Washer. Lexus Is250, Is220D. Gse20 Ale20

  1. WIPER AND WASHER SYSTEM

Wiper And Washer System -- System Diagram



WIPER AND WASHER SYSTEM

  1. Various switches or sensors are shown as being inputs for the different systems mentioned in the section. Where direct electrical connections do not exist between components, signals may be carried across the different networks (BEAN, CAN) that exist on the vehicle. If a signal needs to travel from the CAN network to the BEAN network, or between different BEAN networks, the Gateway ECU allows the signal to travel between these different networks. Some of these different signals can be confirmed or inspected using the intelligent tester.

  2. The following system diagrams are intended to show the concept of operation, and may not precisely reflect the construction of the system on the vehicle.


Lexus Is250, Is220D. Gse20 Ale20.Wiper And Washer.Wiper And Washer System.Wiper And Washer System System Diagram


Lexus Is250, Is220D. Gse20 Ale20.Wiper And Washer.Wiper And Washer System.Wiper And Washer System System Diagram


Input and output signals of each ECU:
Transmitting ECU
(Transmitter)
Receiving ECU
Signals
Communication
Rain Sensor
Main Body ECU LH (Cowl Side J/B LH)
  1. HI continuous operation command signal
  2. LO continuous operation command signal
  3. LO single operation command signal
  4. Manual intermittent operation command signal
  5. Wipe angle variable demand signal
BEAN
Combination Switch ECU
Main Body ECU LH (Cowl Side J/B LH)
  1. Wiper switch INT signal
  2. Wiper switch LO signal
  3. Wiper switch HI signal
  4. Wiper switch AUTO position signal
  5. Washer switch signal
  6. Wiper switch MIST signal
  7. Wiper adjusting volume signal
BEAN
Combination Switch ECU
Front Light ECU
  1. Washer motor operation signal
BEAN
Combination Meter ECU
Main Body ECU LH (Cowl Side J/B LH)
  1. Vehicle speed signal
BEAN
Combination Meter ECU
Rain Sensor
  1. Vehicle speed signal
BEAN
Combination Switch ECU
Rain Sensor
  1. Wiper & washer switch signal
BEAN
ECM
Main Body ECU LH (Cowl Side J/B LH)
  1. Shift position P signal
  2. Shift position N signal
CAN - BEAN
Main Body ECU RH (Cowl Side J/B RH)
Main Body ECU LH (Cowl Side J/B LH)
  1. Parking brake switch signal
  2. Stop light ON command signal
BEAN
Main Body ECU RH (Cowl Side J/B RH)
Combination Switch ECU
  1. Engine switch signal
BEAN
Main Body ECU RH (Cowl Side J/B RH)
Rain Sensor
  1. Display dimmer signal
BEAN
Main Body ECU LH (Cowl Side J/B LH)
Rain Sensor
  1. Wiper motor position signal
  2. Wiper blade position signal
BEAN
Steering Lock ECU
Rain Sensor
  1. PUSH switch signal
BEAN
Front Light ECU
Combination Meter ECU
  1. Washer level signal
BEAN
HINT:
  1. Wiper operation is controlled by the main body ECU LH (cowl side J/B LH).
  2. The rain sensor controls the auto wiper function.