Kind thanks to the folks at http://www.MoparTruckParts.com who sent me a detailed wiring diagram...it looks as if my Dodge D200 never had a horn relay! Wiring diagrams show battery connections, horn connections and grounding through the horn switch but no relay. I will have to find the weak link in the wiring or add a relay myself. For anyone with similar problems, +12 V comes off the fuse box on wire F15-16LG/BK, through pin 14 on a connector (through the firewall if I am reading things right), through a 2 pin inline connector and to the horn. The other horn terminal has wire H10-16DG/WH which goes to pin 1 on a firewall through connector, to an un-numbered connector pin up the steering column and to the horn switch where it gets grounded when the horn button is pressed.
The 1991 Dodge diesel truck glow plug relay is located in the fuse box. The fuse box is located behind the battery box. The glow plug relay will be in the right upper corner of the box.
The relay is internal to the computer and is not serviceable.
The 2004 Dodge ram 2500 pickup truck horn relay switch is located in the fuse box. The fuse box is located in the engine compartment.
1,8,4,3,6,5,7,2 for V8
if your under the truck its on the drivers side beside the bell housing of the transmission
The fuel pump relay on a 1988 Dodge Dakota truck is located in the engine compartment, near the fire wall. It is contained in a water tight box which houses a number of relays and fuses.
Looking for a cooling shrad
Thanks a 1 ton. Nice truck.
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It is in the under hood fuse box. Check the fuse in there also. The fan motors are prone to failure.
Three on the left, three on the right, two on the rear of the block.
The first Dodge truck was built by the Dodge brothers in the 1920's.