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Diagnose Electrical Faults in the Fuse Box

2:34
15:46
36K views

At 2:34 in

The Ram dies #bad #ram

What happens here

After driving the Dodge Ram 2500 to Mendota Heights Auto Service, the owner speaks with the mechanic, Doug, to discuss the truck's persistent starting issues. Doug begins the diagnostic process by opening the fuse box located under the hood, near the battery. He identifies the starter relay and a 40-amp green fuse, explaining that these components are crucial for sending power to the starter. Doug then points out that two fuses in the fuse box (the 40-amp green fuse and another) showed signs of significant corrosion, which was disrupting the electrical connection.

Goal: Identify corroded fuses and relays causing intermittent starting problems.

Tools and materials

  • 40-Amp Green Fuse OEM — A key fuse in the starting circuit
  • Dodge Ram 2500 Truck Dodge Ram — The vehicle being diagnosed
  • Fuse Box OEM — Containing the electrical fuses and relays
  • Starter Relay OEM — Relaying power to the starter

What they say

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yeah so this round what we found up in the fuse block up by the battery yeah okay there's a power supply that runs like a 40 have green fuse can we walk out and you show me more circling let's do it it might be easy to go this way he's working this way you guys know how you do it all right he's got the keys okay [Music] for a stand pickup truck there are you filming your day here or what well no I'm filming how this truck has left me high and dry I was stuck at another gas station like fueled up turned it off it was just dead just dead that's right yeah it'll be in a minute we'll just give me the key here we're gonna he'll be back in we're gonna go look at his truck I'm never returning so I think we had kind of a little bit of a combo platter here okay anyway Advance starter click click click click click which is pretty calm yep okay [Music] okay yep so you got your battery all the connections are good there yep okay inside here I'm gonna just it's hard to get it off all the way yes it is that's a starter relay yes okay so this 40 amp fuse sends power to the to this relay okay okay the computer will ground it okay through the ignition yeah do a body control computer okay we'll ground that relay and it'll send the start signal down to the starter yeah okay this fuse these two fuses this one's uh unrelated ones like door locks or something I'd have to read it again we're green even though they're green fuse they're green inside like corrosion-ish steel stuff both of them were both of these were not very good

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