Re: '55 Caribbean Power Windows

Posted by HH56 On 2023/9/23 15:14:15

The wire from the ign switch is a 14 or 16 ga control wire and should not have been affected because of the switch and motor issue. Its only duty is to turn on the relay and the only way it should have been able to be damaged is if the relay or wire itself shorted. It almost sounds as if there is a miswire and someone powered the windows directly from the ign sw by using the control wire for power and bypassing the relay. That is a huge load on a small wire and an ign switch that is marginally sized under the best of normal conditions.

Power for all the windows, power seat and if installed, the power door locks comes directly from the BAT terminal on starter solenoid via a red #12 wire. That wire connects to one end of the circuit breaker and I believe they chose 40 amps for the breaker because it is conceivable two or more motors could be going at the same time.

The other end of the circuit breaker goes to one of the contact terminals on the normally open relay. The other contact terminal out of the relay feeds a #12 wire with continuing splices to the various window switches. The power seat feed wire is also 12ga and would also be connected on that same relay out terminal.