TC Alternator Connection Diode

reddrum wrote:
I think my diode is dead on the connection from the TC to the truck alternator. What amperage diode is recommended?

Have you seen this "diode" that is apparently dead?

Truck manufacturer's don't use a "diode" between the truck electrical system and the RV charging circuit. There's be a relay or solenoid of some sort.

In my Pre-2015 GM truck, the line is hot all the time, so I added a solenoid.

Then later I did a massive upgrade to the charging link

Kayteg1 wrote:
What diode? My truck has factory relay on trailer charging circuit.

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Ditto.

What model truck used a "diode"?

What diode? My truck has factory relay on trailer charging circuit.

You can check the diode with a multi meter to verify prior to replacing.