snarshooter
New member
Hello everyone,
this is my first post so I apologize if I'm missing any important information. This is a long shot, but I'm curious if anyone may know the location of the fuse for the D5WZ on a 2007 sprinter 3500. It was converted to a shuttle bus with an electric bus door by an unknown company and used as an airport shuttle in AZ. It has a D5WZ under the van near the driver's door and it's coolant is looped into a roof mounted Carrier EM1 as well as the engine coolant system(like the factory AUX heater). When I turn the switch labeled "heater" ON it runs the aux coolant pump but the espar doesn't start up. Testing the red(+12) and brown(gnd) wires to the espar I get 0.1v so I'm guessing that the fuse is blown or red wire is severed. The heater won't start, I've tried it with and without the engine running, with and without REST on, and with both heat controls on and at various levels. I checked all fuses in the drivers seat, passenger seat and dash fuse box. Attached are pictures of the dash buttons, drivers fuse box, passenger fuse box, dash fuse box. Thanks in advance for any help anyone can provide.
-Brian
this is my first post so I apologize if I'm missing any important information. This is a long shot, but I'm curious if anyone may know the location of the fuse for the D5WZ on a 2007 sprinter 3500. It was converted to a shuttle bus with an electric bus door by an unknown company and used as an airport shuttle in AZ. It has a D5WZ under the van near the driver's door and it's coolant is looped into a roof mounted Carrier EM1 as well as the engine coolant system(like the factory AUX heater). When I turn the switch labeled "heater" ON it runs the aux coolant pump but the espar doesn't start up. Testing the red(+12) and brown(gnd) wires to the espar I get 0.1v so I'm guessing that the fuse is blown or red wire is severed. The heater won't start, I've tried it with and without the engine running, with and without REST on, and with both heat controls on and at various levels. I checked all fuses in the drivers seat, passenger seat and dash fuse box. Attached are pictures of the dash buttons, drivers fuse box, passenger fuse box, dash fuse box. Thanks in advance for any help anyone can provide.
-Brian
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