Test mode for digital dash 84
Thread Starter
Instructor
Joined: Jun 2004
Posts: 155
Likes: 1
From: Melbourne Florida
Test mode for digital dash 84
Does anyone know which wires to connect on the digital dash to put it in test mode (all lights and indicators on). I would like to test before puttting back in car, easier on the bench with a 12 volt source than trying to wrangle it into dash, connect and expect good results.
Thanks,
Woody
Thanks,
Woody
Drifting
Joined: Aug 2004
Posts: 1,294
Likes: 295
From: Galveston & Belton Texas
Not sure exactly what tests you expect to get but if you want to see if everything lights up--think this should do it. You will be using the 32-pin connector and not the 24. You will just need 12v battery and a ground.
Grounds (many times if these grounds are bad/lots of cluster problems):
D1-blk (in car to driver pillar ground screw)
D3-blk/wht (in car to ambient over-ride sensor, through bulk head to engine ground) (think the 85 works this way)
Power:
D5, D16 and C16 (all 12v DC)
So, if the cluster in car or on your table has a good ground on both D1 and D3 and 12v to D5, D16 and C16, it should light up.
Grounds (many times if these grounds are bad/lots of cluster problems):
D1-blk (in car to driver pillar ground screw)
D3-blk/wht (in car to ambient over-ride sensor, through bulk head to engine ground) (think the 85 works this way)
Power:
D5, D16 and C16 (all 12v DC)
So, if the cluster in car or on your table has a good ground on both D1 and D3 and 12v to D5, D16 and C16, it should light up.
Drifting
Joined: Aug 2004
Posts: 1,294
Likes: 295
From: Galveston & Belton Texas
Sorry, had 85 corvette in my head. This works for the 84--I have one and used this to find my photo cell bad. In my case I also had a cold solder joint in the grd pins between the two boards. And, I bought a photo cell from radio shack and changed it and it worked fine. I think you can also remove the photo cell and solder a bridge in its place and then the cluster just stays bright all times.
