Wiper Switch (HI Speed) Circuit

WIPER AND WASHER: WIPER AND WASHER SYSTEM: Wiper Switch (HI Speed) Circuit
- Wiper Switch (HI Speed) Circuit

DESCRIPTION

The front controller receives a HI position signal from the wiper switch to operate the wiper motor at high speed.

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

WIRING DIAGRAM





INSPECTION PROCEDURE

PROCEDURE

1. CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ECU - FRONT CONTROLLER)

(a) Disconnect the combination switch ECU connector.





(b) Disconnect the 1G connector from the front controller.





(c) Measure the resistance according to the value(s) in the table below.

Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR
OK -- Continue to next step.

2. CHECK HARNESS AND CONNECTOR (COMBINATION SWITCH ECU - BODY GROUND)

(a) Disconnect the combination switch ECU connector.





(b) Measure the resistance according to the value(s) in the table below.

Resistance:





NG -- REPAIR OR REPLACE HARNESS OR CONNECTOR

OK -- PROCEED TO NEXT CIRCUIT INSPECTION SHOWN IN PROBLEM SYMPTOMS TABLE