Dim Instrument Cluster Electrical Problems
Thread Starter
Instructor
Joined: May 2014
Posts: 107
Likes: 7
From: Los Angeles California
Dim Instrument Cluster Electrical Problems
Hello Friends!
Just purchased a 2000 C5 Coupe! My first Vette, and dream car since I was a child!
I've been doing a lot of work fixing it up, and the most recent job I replaced both A/C Blender Door Actuators on the Dual Climate Control HVAC system.
Just reassembled the car this afternoon, and took it for a test drive. When waiting for a stop light, all the sudden the car's electrical went nuts, and the whole car died! Had to shift back into park before I could restart the car.
Now I've also noticed that the "day-time" back-lights of the instrument cluster cannot be adjusted and are VERY dim, and cannot be adjusted. But when I go into a garage and the system switched to "night-time" the gauge lights up perfect, and it can be adjusted now.
When working behind the dash, I tested a few things and noticed something strange. When I pushed the key hard into the ignition slot, sometimes the electrical would briefly reset.
Also the only codes are:
B0-RFA:
U1096 H
U1064 H
U1016 H
Please help!
Thanks!
Just purchased a 2000 C5 Coupe! My first Vette, and dream car since I was a child!
I've been doing a lot of work fixing it up, and the most recent job I replaced both A/C Blender Door Actuators on the Dual Climate Control HVAC system.
Just reassembled the car this afternoon, and took it for a test drive. When waiting for a stop light, all the sudden the car's electrical went nuts, and the whole car died! Had to shift back into park before I could restart the car.
Now I've also noticed that the "day-time" back-lights of the instrument cluster cannot be adjusted and are VERY dim, and cannot be adjusted. But when I go into a garage and the system switched to "night-time" the gauge lights up perfect, and it can be adjusted now.
When working behind the dash, I tested a few things and noticed something strange. When I pushed the key hard into the ignition slot, sometimes the electrical would briefly reset.
Also the only codes are:
B0-RFA:
U1096 H
U1064 H
U1016 H
Please help!
Thanks!
Thread Starter
Instructor
Joined: May 2014
Posts: 107
Likes: 7
From: Los Angeles California
Sounds like ignition switch. Here are 3 links about the diagnosis, removal and repair of the ignition switch:
diagnosis
http://forums.corvetteforum.com/1568186703-post64.html
removal
http://forums.corvetteforum.com/1571067145-post107.html
repair procedure
http://forums.corvetteforum.com/c5-t...ch-repair.html
Carefully go through the diagnosis process for each fuse lister.....
diagnosis
http://forums.corvetteforum.com/1568186703-post64.html
removal
http://forums.corvetteforum.com/1571067145-post107.html
repair procedure
http://forums.corvetteforum.com/c5-t...ch-repair.html
Carefully go through the diagnosis process for each fuse lister.....
Does anyone have a part number for a replacement ignition, and a part number for the matching bezel to go with it?
Thread Starter
Instructor
Joined: May 2014
Posts: 107
Likes: 7
From: Los Angeles California
Just tested all the fuses and they were all good, except for fuse 21 - BTSI BU, that read slightly below the others.
All the fuses read about 12.08v, but fuse 21 came in at 11.94v
All the fuses read about 12.08v, but fuse 21 came in at 11.94v
Thread Starter
Instructor
Joined: May 2014
Posts: 107
Likes: 7
From: Los Angeles California
I got the ignition out, and was wondering about this rusty red stuff all over the key portion
https://www.dropbox.com/s/ozpx27fjc0...2011.33.31.jpg
https://www.dropbox.com/s/rrzqpc5yp9...2011.48.29.jpg
Also is it normal for the key cylinder to give a little when I push on it?
https://www.dropbox.com/s/ozpx27fjc0...2011.33.31.jpg
https://www.dropbox.com/s/rrzqpc5yp9...2011.48.29.jpg
Also is it normal for the key cylinder to give a little when I push on it?
Thread Starter
Instructor
Joined: May 2014
Posts: 107
Likes: 7
From: Los Angeles California
I've now pulled out the ignition, resurfaced it and cleaned it.
Before:
After:
Put everything back in, and tested it out. Ignition seems okay, but I am still unable to adjust the "day-time" brightness of my instrument cluster.
I did note that when I put my hand over the photo-resistor by the dash instrument buttons the back lighting jumps from super bright to almost nothing, with no in between.
Any more help?
Before:
After:
Put everything back in, and tested it out. Ignition seems okay, but I am still unable to adjust the "day-time" brightness of my instrument cluster.
I did note that when I put my hand over the photo-resistor by the dash instrument buttons the back lighting jumps from super bright to almost nothing, with no in between.
Any more help?
Melting Slicks
Joined: Jan 2009
Posts: 3,275
Likes: 739
From: Miami FL
Thread Starter
Instructor
Joined: May 2014
Posts: 107
Likes: 7
From: Los Angeles California
Thread Starter
Instructor
Joined: May 2014
Posts: 107
Likes: 7
From: Los Angeles California
Perhaps I am way over thinking this...
Does the C5 Corvette have back lighted instrument panels during daytime?
Because if the dash is not lighted during the day time, then that answers a silly question and I can reassemble my dashboard!
Thanks again
Does the C5 Corvette have back lighted instrument panels during daytime?
Because if the dash is not lighted during the day time, then that answers a silly question and I can reassemble my dashboard!
Thanks again
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Thread Starter
Instructor
Joined: May 2014
Posts: 107
Likes: 7
From: Los Angeles California
ONLY if you cover the light sensor on the top of the dash at the drivers end of the dash top vent.
If you do that you fool the system into thinking it is dark out and the dash lights will illuminate to the level you have set and are adjustable.
I misunderstood the problem when I read your first post and was concentrating on the part about pressing the key hard into the key cylinder.
If you do that you fool the system into thinking it is dark out and the dash lights will illuminate to the level you have set and are adjustable.
I misunderstood the problem when I read your first post and was concentrating on the part about pressing the key hard into the key cylinder.
Thanks a bunch, I'm going to throw it all back together tonight
And thanks for the tips about the ignition!
