DIC Locked Up! Electrical Problem?
Thread Starter
Instructor
Joined: Jul 2008
Posts: 207
Likes: 3
From: Fort Walton Beach Florida
DIC Locked Up! Electrical Problem?
I have a 99 coupe that has a problem that's driving me nuts. My DIC seems to be locked up. I have an air pressure sensor out and that is what stays displayed on the DIC. I try reseting and no luck. Changed out the DICswitch assy but no fix. To dig deeper I open the dash and unplug the DIC switch assy. The maintenance manual (volume 3 page 8-645 says the Instrument panel cluster (IPC) supplies a 5v reference for each switch circuit. I put a multimeter on the gray wire (ground) and any of the 6 wires goingto the switch and I get 12v. Am I doing something wrong? Shouldnt I be getting the 5v reference voltage?
I am also unable to pull any codes.
I am also unable to pull any codes.
Team Owner
Joined: May 2006
Posts: 21,473
Likes: 356
From: Palmdale, Ca----- 2009 Cyber Gray 4LT A6 F55 452 RWHP 422 RWTQ- RIP 1998 C5 734 RWHP & 585 RWTQ-----
Okay I hate to say this but have you tried unhooking the negative battery cable for a while and see if that will unlock it?
It's worth a try, but if all else fails get ahold of Bill Curlee here on the Forum, he is the Electrical guru!
If anyone can get you straightened out he will for sure!
Thanks,Matt
It's worth a try, but if all else fails get ahold of Bill Curlee here on the Forum, he is the Electrical guru!
If anyone can get you straightened out he will for sure!
Thanks,Matt
Thread Starter
Instructor
Joined: Jul 2008
Posts: 207
Likes: 3
From: Fort Walton Beach Florida
Okay I hate to say this but have you tried unhooking the negative battery cable for a while and see if that will unlock it?
It's worth a try, but if all else fails get ahold of Bill Curlee here on the Forum, he is the Electrical guru!
If anyone can get you straightened out he will for sure!
Thanks,Matt
It's worth a try, but if all else fails get ahold of Bill Curlee here on the Forum, he is the Electrical guru!
If anyone can get you straightened out he will for sure!
Thanks,Matt
Advanced
Joined: Apr 2009
Posts: 53
Likes: 0
From: Las Vegas Nevada
I have a 99 coupe that has a problem that's driving me nuts. My DIC seems to be locked up. I have an air pressure sensor out and that is what stays displayed on the DIC. I try reseting and no luck. Changed out the DICswitch assy but no fix. To dig deeper I open the dash and unplug the DIC switch assy. The maintenance manual (volume 3 page 8-645 says the Instrument panel cluster (IPC) supplies a 5v reference for each switch circuit. I put a multimeter on the gray wire (ground) and any of the 6 wires goingto the switch and I get 12v. Am I doing something wrong? Shouldnt I be getting the 5v reference voltage?
I am also unable to pull any codes.
I am also unable to pull any codes.
Administrator
Joined: Mar 2001
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From: In a parallel universe. Currently own 2014 Stingray Coupe.
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I agree that Bill Curlee might have some good advice for you. Will be following this thread to see what you find out - please post up the results.
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