Intermittent Operation: Overview
WARNING: This page is about a different car, the 2003 Nissan Murano. However, it is still accessible from the selected car via links, so may be relevant.
The front wiper motor operates the wiper arms one time at low speed at a set interval of wiper volume switch and vehicle speeds, this feature is controlled by the BCM and IPDM E/R.
When front wiper switch is in INT position BCM detects INT position of the wiper switch by BCM wiper switch reading function. BCM performs the following operations
- When BCM detects ON/OFF status of intermittent operation dial positions 1, 2, and 3 it determines wiper dial position status. Refer to WIPER DIAL POSITION SETTING .
- BCM calculates operation interval from wiper dial position and vehicle speed signal received from unified meter and A/C amp with CAN communications.
- BCM sends front wiper request signal (INT) to IPDM E/R at calculated operation interval.
- When IPDM E/R receives front wiper request signal (INT), it turns ON internal front wiper relay. It then sends auto stop signal to BCM, and conducts intermittent front wiper motor operation.
With power is supplied and ground circuit is routed, front wiper operates at intermittent.