Dash & running light problem, Multifunction switch?
Thread Starter
6th Gear
Joined: Apr 2009
Posts: 6
Likes: 0
Dash & running light problem, Multifunction switch?
My rear running lights are inop both with and with out the headlights on. The front running lights work as they should. Also the dash lights work fine during the power on self test, but go out when the headlights are turned on. I’ve checked the #6 fuse and it’s good, as it should be since the front lights work. I suspect it’s the multifunction switch, is there any other troubleshooting I can do to confirm it? All other lights work as they should.
Thanks,
George
Thanks,
George
Melting Slicks
Joined: Oct 2007
Posts: 2,383
Likes: 13
From: Kinston North Carolina
If it is the Multifunction Switch, the Rear Park Lamps, Front Park Lamps, and Dash Lamps will come on when the Twilight Sentinel is activated.
If that's the case, check this out:
http://forums.corvetteforum.com/c5-t...f-replace.html
If that's the case, check this out:
http://forums.corvetteforum.com/c5-t...f-replace.html
Last edited by byronhunter; May 17, 2009 at 03:56 PM.
Thread Starter
6th Gear
Joined: Apr 2009
Posts: 6
Likes: 0
Please excuse my ignorance, but I don't know anything about the twilight sensor. I just checked my options and I do not have the twilight sentinal on my car.
Last edited by gglmn; May 17, 2009 at 11:51 PM.
Thread Starter
6th Gear
Joined: Apr 2009
Posts: 6
Likes: 0
It's a '99. I have the manual. This is my wife's car, so I'm not familiar with it. I've gone through the options on the DIC and I don't get twilight. While I had the manual in the car I checked a few other lighting modes. I tried to turn on the fog lamps, they don’t work. I can see the lamps were installed but they don’t come on and the light in the button does not come on. Also, I can’t seem to get the Parade Mode to work, but I find the manual poorly written. I’ve tried it a few ways with no luck. I can test with a multimeter, but I’m not sure where to start. Thanks for help!
Melting Slicks
Joined: Oct 2007
Posts: 2,383
Likes: 13
From: Kinston North Carolina
Park Lamp Switch. C209 (Connector) under Steering Column, Brown wire, Circuit #308, should have 12V with Park Lamps turned on. Does it?
Last edited by byronhunter; May 18, 2009 at 10:50 AM.
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Melting Slicks
Joined: Nov 2003
Posts: 3,011
Likes: 9
From: Dublin GA
My rear running lights are inop both with and with out the headlights on. The front running lights work as they should. Also the dash lights work fine during the power on self test, but go out when the headlights are turned on. I’ve checked the #6 fuse and it’s good, as it should be since the front lights work. I suspect it’s the multifunction switch, is there any other troubleshooting I can do to confirm it? All other lights work as they should.
Thanks,
George
Thanks,
George
If it turns out you do need one, I picked up a new one off of the auction site for around $100, and they are pretty darn simple to install.
Thread Starter
6th Gear
Joined: Apr 2009
Posts: 6
Likes: 0
I checked the brown wire, (mine was light brown,) at the connector under the steering column and no power. I tried it in both the parking lights and headlamp position. Does this confirm that the multifunction switch is malfunctioning?
Tech Contributor
Joined: Dec 2006
Posts: 10,962
Likes: 29
From: Van Buren Arkansas
Wounded Warrior Escort '11
I'll throw in 2 cents worth here, the small light inside the fog lamp switch is a seperate path from the fog lamp relays in the engine compartment relay/fuse box. It means that the fog lamp relays did not turn on. The headlamp switch will turn off the fog lamps if the high beams were on and of course they won't turn on with the parking lamps off either. It certainly sounds like the multifunction/headlamp switch. There is a repair on it or you can replace it. The steering wheel does not have to come off.
Melting Slicks
Joined: Oct 2007
Posts: 2,383
Likes: 13
From: Kinston North Carolina
gglmn, look at the schematic, if you have 12V in on C209 pin Z (orange wire), and NO 12V out on C209 pin R (brown wire), the switch is bad. If you have no voltage on pin Z, then you need to check the voltage on Fuse #6 in the IP Fuse Block. Can't be all that complicated!!!!!!!!
