I have a problem with the wipers on my rear engine Thomas . Yesterday the wipers quit . Today I have the bus in the shop . I unplugged the motor connections . I checked for power at the connector passenger one has great power Drivers side has crappy power . It shows 11.5 volts but my powerprobe light showing positive blinks like crazy meaning it isn't clean . The Passenger side has a steady light . Pluggen in right side and motor works like it should .Left side the motor jerks and then stops . I thought motor then when I apply good power to the left side motor it works great . So is there a relay that is bad ? If so where would I look . Bad wiper switch ? Thanks
There is a wiper module/relay; depending on the vintage of you ER. Pre 2001 we used a 5200-2395 on the flat window WestcoastER's, and a 6120-1552 when they went to the "NewLook" curved glass buses in 2001-2002. I don't have any newer than that...
The module is a small rectangle box mounted to the bulkhead inside the rt.hand fuse box area near the center of the windshield white plug with a ground wire under the screw holing the module. PITA to get to when it goes bad one of the wipers quits as a rule.
Thomas safetyliner rear engine wiper question
Posted - 02/14/2020 : 09:45:32 AM
