RAM 1500 Truck 4WD V8-5.9L VIN Z (2002)
the instrument cluster and the FCM that control the operation of the wiper ON/OFF relay. The most reliable, efficient, and accurate means to
diagnose the wiper ON/OFF relay, the instrument cluster, the FCM, or the electronic message inputs and outputs related to the wiper ON/OFF
relay operation requires the use of a DRB III scan tool. Refer to the appropriate diagnostic information.
