So I want to make sure this OHC works before I go about installing it. I have the console power (GY/YL) and the ground hooked up to a 4 amp battery charger. I also have the temp sensor wired up. I get nothing on the screen, so I grabbed another brain from another unit i had and it works but all that it does is turn all the lights on the LCD. It doesnt show any data. ANyone know whats going on here?

 

why don't' you just install it, if it doesn't work, get another one that does. the wiring will still be the same no matter what.

 

because I dont want to look at it unless it works.

 

so don't look at it, look at the road. seriously that has to be the worst excuse I've ever heard.

 

agree sometimes they don't work right unless everything is wired up.

 

if you dont want to cut the hole you could always run the wires and test it and then route the wires up top... not hard

 

I had just the chip from one, and When I hooked it up, ( With an old computer powersupply 12v plug) It lit up and was reading temp, but since I didnt have the sensor for it, it was just reading "Ice" and 30 degrees or something.

 

Methinks you need a different power source than a charger.

They don't typically put out 12v like a battery does. Depends on how they are rectified. 4A tells me it is a cheapy that you can't use to jump-start a car, so I'd expect it to put out some 1/2 wave rectified DC pulses, not a pure 12V.

 

Its a trickle charger not a jump pack, and its OOOOLLLLD. It works great for when your amp drains your battery while you are working on the truck. I have used that same battery charger to power explorer power seats so I know that its got a decent power out put.

I think that I will wire everything up and then check it before cutting the hole. I didnt even think of that.

 

Connect the wires to the battery of the truck. One to the ground one to the pos. that will be easier.