Taillight melted

[TJC]

A diode can serve many purposes: rectifier, detector, isolator…..

an oversimplification is that a diode is to electricity what a check valve is to fluids

standing by to get flame sprayed by the EXACTOS

We used them (Diodes) 50 years ago as voltage dividers in our 1/12 scale GM EMD F9 A and B Locomotives... Those diodes where massive (2"+ diameter), we silver soldered 12V battery cables to them. Had them seated onto 1/8" thick x 3"x3" aluminum angle cut into 6" sections for heat sinks. We dropped the voltage in 3v increments. There was a .75v voltage drop across the diode. We had 6 forward and reverse speeds... Used very large relays to vary the number of diodes in the power chain...adding/dropping 4 at a time. Old school and inefficient, but we never had a failure in that area.

We had 4 braking speeds accomplished by progressively shunting the motors...
which were surplus WWII aircraft landing gear motors rewired to a max 24 volts.

A long time ago in a land far away....

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[airline tech]

Just curious if the OP had a resolution to the cause of the melt down from the dealer

 

[Stephen Abbene]

It’s still at the dealership waiting on parts. They last quoted me 5k for parts which seems insane. Dunno how the tail light costs almost 10% of what the truck did….

 

[Big Blue]

It’s still at the dealership waiting on parts. They last quoted me 5k for parts which seems insane. Dunno how the tail light costs almost 10% of what the truck did….

Does sound high for parts unless the BCM failed causing it and need to replace it too.

 

[mtbikernate]

Does sound high for parts unless the BCM failed causing it and need to replace it too.

yeah, I'd want a list of what parts are affected

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