a few wiring questions on a 1987 gt (Page 1/1)
cartercarbaficionado SEP 23, 03:50 AM
mostly done getting the Prairie queen fully operational and ready for its maiden voyage but i have a few issues.
I have no courtesy lights and have no idea where the relay is if it even uses one. switches do work according to the dash light

I'm not sure if the starter solenoid is getting power and haven't tried jumping the solenoid yet since it's probably rusted in place will put in a new starter before testing. also missing the fuel tank filler neck rubber hoses and can't wait for the fiero store ones to come in.

90 percent there really just missing the spoiler to complete the body and seal up the holes in the trunk after bolting the bumper and turn signals on.
olejoedad SEP 23, 08:05 AM
The courtesy lights don't have a relay.

The circuit is energized continuously and the door switches provide the ground.

Check to see that the plug in the C100 C200 is plugged in (orange wire and white wire on some plug)

The C200 is located above the fuse box at the base of the driver side A pillar. The easy way to access time C200 is to pull the driver side speaker out of the dash.


If above is all OK, change the bulbs and check the BAT and CTSY/LID fuses.

Edited to correct errors.

[This message has been edited by olejoedad (edited 09-25-2024).]

cartercarbaficionado SEP 24, 04:43 AM

quote
Originally posted by olejoedad:

The courtesy lights don't have a relay.

The circuit is energized continuously and the door switches provide the ground.

Check to see that the plug in the C100 is plugged in (orange wire and white wire on some plug)

The C100 is located above the fuse box at the base of the driver side A pillar. The easy way to access time C100 is to pull the driver side speaker out of the dash.
If above is all OK, change the bulbs and check the BAT and CTSY/LID fuses.



could the c100 also be why my power accessories don't work? really just trying to fix that stuff now since the engine electrical is fully functional and operating correctly
olejoedad SEP 24, 09:32 AM

quote
Originally posted by cartercarbaficionado:

could the c100 also be why my power accessories don't work? really just trying to fix that stuff now since the engine electrical is fully functional and operating correctly



Yes, most definitely.
Power windows, locks, mirrors and courtesy lights all get their power from the C100.
cartercarbaficionado SEP 24, 06:04 PM

quote
Originally posted by olejoedad:


Yes, most definitely.
Power windows, locks, mirrors and courtesy lights all get their power from the C100.


cool thanks joe
olejoedad SEP 24, 07:35 PM
Glad to help.
cartercarbaficionado SEP 25, 04:13 AM
everything but the power locks, decklid popper and the power mirrors
olejoedad SEP 25, 09:27 AM
Ooops!

I posted some misinformation above.
The connector is not called C100 ( that's the pass thruon the front bulkhead to the front harness), it's called the Junction Block - C200.

It supplies power to power mirrors, interior lights defogger,power door locks.



Sorry for the error, I have included info from the FSM.
Hope this helps

[This message has been edited by olejoedad (edited 09-25-2024).]

olejoedad SEP 25, 09:33 AM

The trunk release has a relay near the A/C head behind the instrument panel.

[This message has been edited by olejoedad (edited 09-25-2024).]