aux battery light flashing

[davidbrady]

Rick,

At the lower front Dash fuse panel circuit breaker SK9 is labeled "Aux Battery Enable". I'll check my schematics to see if I can see how this relay is wired in. I suspect it's simply toggled by the dash aux batt switch. I'm still thinking that you have a faulty relay or a loose connection somewhere. More likely it's a loose connection at the alternator. Could it be that at idle the engine vibration causes an intermittent signal at a loose connection?

My bus uses two 6A10 diodes to turn on the aux batt feature, one on the house and one on the chassis batteries, and one 1N54 for flyback current at the solenoid, reverse biased.