I have a Toyota 5FBe15 that my customer is wanting to put accessory lights on. Truck is 36 volts. I initially installed these accessory lights on the main ground terminal N1 and made the hot come from key switch. This was not a good solution. I ended up throwing an error code C0 on the truck and had to eat parts and labor because of my mess up. I initially installed three new transistors(tsm003) and a cpu board(24210-12240-71) and hooked the lights up differently with a 36v 4 wire solenoid. I used the strobe light hot and ground to signal the solenoid and had all lights grounded to N1 terminal and pass through for the solenoid come from the hot terminal P2. This is to achieve what my customer wants( key on safety lights.) After hooking this up this way the lift lasted about 6 hours or so and gave the same code C0. After doing further research I found multiple people saying the DC board was their problem. I installed DC board(24230-12242-71), three more transistors and unhooked the lights right now and it has been two days without any problems. Before I hook the lights up again I want to make sure that running a 36v four wire solenoid using the strobe light wires to signal the solenoid is not my problem. Thanks and all help is welcome.