Tracking down electrical gremlins

Pete_89T2 · 01-11-2014, 04:30 PM

I agree - get the FSM & wiring diagram and start tracing the circuit back from the turn signal indicator bulbs, and look for anyplace it could possibly short to, causing those lights to come on.

My best guess at this point is a bad CPU, probably a short caused by a failed solder joint. The CPU is where the electronic faggotry that causes both the turn signals and hazard flashers to flash happens... And since the hazard flashers operate with the engine off, it's a likely short circuit location. Try swapping in a known good CPU from another FC.

RETed · 01-11-2014, 05:33 PM

Or quickie troubleshooting with the "CPU"...

Unplug the unit and see if the situation changes???

-Ted

01-11-2014, 04:30 PM	#1
Pete_89T2 Lifetime Rotorhead Join Date: Apr 2010 Location: Elkton, MD Posts: 874 Rep Power: 16	I agree - get the FSM & wiring diagram and start tracing the circuit back from the turn signal indicator bulbs, and look for anyplace it could possibly short to, causing those lights to come on. My best guess at this point is a bad CPU, probably a short caused by a failed solder joint. The CPU is where the electronic faggotry that causes both the turn signals and hazard flashers to flash happens... And since the hazard flashers operate with the engine off, it's a likely short circuit location. Try swapping in a known good CPU from another FC.