Wiper Does Not Wipe When Rear Washer Operates

WARNING: This page is about a different car, the 2004 Nissan Quest. However, it is still accessible from the selected car via links, so may be relevant.

CHECK COMBINATION SWITCH INPUT SIGNAL
Select "BCM" on CONSULT-II. With "WIPER" data monitor, make sure "RR WASHER SW" turns ON-OFF according to operation of rear washer switch.

When rear wiper switch is in: RR WASHER SW ON WASHER position

OK or NG
1. OK: Replace BCM. Refer to "REMOVAL AND INSTALLATION OF BCM ".
2. NG: Check the wiper switch. Refer to "BCM WIPER SWITCH READING FUNCTION ".
  
  Fig 1: Displaying "RR WASHER SW" With Consult-II
  Courtesy of NISSAN MOTOR CO., U.S.A.