Diagnosis And Testing - Right MULTIFUNCTION Switch

The internal circuitry of the wiper (right) multifunction switch and the hardwired circuits between the switch and the Body Control Module (BCM) may be diagnosed using conventional diagnostic tools and procedures. Refer to the appropriate wiring information. However, conventional diagnostic methods will not prove conclusive in the diagnosis of the BCM or the electronic controls and communication between modules and other devices that provide some features of the BCM-controlled wiper and washer system. The most reliable, efficient and accurate means to diagnose the BCM or the electronic controls and communication related to BCM-controlled wiper and washer system operation requires the use of a diagnostic scan tool. Refer to the appropriate diagnostic information.