Commander 4WD V8-4.7L VIN N (2006)
to note that the default condition of the automatic wiper system is low. Therefore, if no message is received by the FCM from the RSM for more than
about five seconds when in the Auto sensitivity wipe mode, the wipers will default to a constant low speed continuous wipe mode.
The hard wired RSM circuits may be diagnosed using conventional diagnostic tools and methods. However, proper testing of the RSM, the FCM, the
SCM and the electronic messages sent and received over the CAN data bus requires the use of a diagnostic scan tool.