Interior Lights stay on

[jerrydirks]

Help, I have the manuals for my 92. The interior lights stay on until the buss times out in 15 minutes. I have checked codes, used ccm diagnostics, all OK.

I need to locate the ccm, but the manuals are not clear on the location. where is grey plug?

I am stumped. Even checked the main ground on the bell housing.

Any ideas are appreciated.

If you are a c4 elect person I need your help.

Thank you!!

Jerry
1992 ZR1, DRM 600

[-=Jeff=-]

I assume you did all the steps in the Service manual?

CCM is behind the radio controller, Access panel is on the driverside console panel

[tf95ZR1]

Woa! Codes, CCM?
KISS (keep it simple s...) No offense intended at all, but
my guess is any of the three light switches isn't making proper
contact. One on driver door, one on passenger door, one on
the rear hatch. Plunger type, and they wear. Try opening one
door/hatch at a time and push the plunger in and see if lights go out.
Then shut the door/hatch and again see if they go out.
Someone (OK, me) has been known to put black electric tape
that matches interior color on the nub that the switch plunger contacts
so that the plunger goes in further and shuts off the lights.
I have also heard of others removing the switches and cleaning
the contacts. You could even buy new switches.
And again, not to insult, but is the lights dimmer lever off?
Good Luck,
Been there, Done that Ted

Hey Jerry,
I just re-read your post and you said you followed the manual.
I don't know what it says, so if you already checked these things again I apologise.

[Nick]

Originally Posted by tf95ZR1

my guess is any of the three light switches isn't making proper contact.

This happened to my '94 Z. Bought new door switches from GM Parts Direct, installed them per the "trick" in the factory service manual (no door panel removal necessary), and all is well.

[ZR 601]

This link may help...

http://home.comcast.net/~zrjuan/doorajar.html

[jerrydirks]

Thanks...I had a combination of an aftermarket security system and two interminent door switches that were making diag difficult. In the end I removed the sec sys and replaced both door switches, now all is well. Thanks for the input!!!

Jerry

[phrogs]

I was going to say check the door switches they get stuck sometimes

[WydGlydJim]

When I got my Z it had a little felt piece on the striker of the rear hatch. I was like what is this? Took it off, and the lights stayed on. I guess that was easier for the previous owner, than adjusting the switch.

[-=Jeff=-]

Originally Posted by WydGlydJim

When I got my Z it had a little felt piece on the striker of the rear hatch. I was like what is this? Took it off, and the lights stayed on. I guess that was easier for the previous owner, than adjusting the switch.

or he may not have know HOW to adjust the switch.. I also found the switch bracket on my 89 for the hatch was bent

careful with the Dorr ajar switches too, they come apart rather easy