The front controller receives washer switch condition (on or off) information from the windshield wiper switch assembly, and operates the WASH relay.

This circuit provides power to the headlight cleaner control relay.

The headlight cleaner control relay receives a signal from each switch and sends the signal to the headlight cleaner motor and pump assembly to operate it.

This circuit detects the conditions (on or off) of the headlight cleaner switch.

The headlight cleaner control relay receives the following signals:

This circuit provides power to operate the rain sensor.

The auto wiper system operates when the windshield wiper switch assembly is in the AUTO position.

The rain sensor is connected to other ECUs through the multiplex communication line (BEAN).

This circuit provides power to operate the windshield wiper switch assembly. The manual operation signals are sent to the main body ECU LH (cowl side J/B LH).

This circuit provides power to the front wiper motor and operates the main body ECU LH (cowl side J/B LH).

The main body ECU LH (cowl side J/B LH) receives a HI position signal from the windshield wiper switch assembly to operate the wiper motor at HI speed.

Even if the ECU malfunctions, this circuit structure enables it to operate the wiper in HI operation mode.

The main body ECU LH (cowl side J/B LH) controls the front wiper motor.

The main body ECU LH (cowl side J/B LH) controls the front wiper motor.

Connect the intelligent tester to the DLC3.