Help diagnose ignition switch and no start - GM Forum - Buick, Cadillac, Chev, Olds, GMC & Pontiac chat


1992-1999 Series I L27 (1992-1994 SE,SLE, SSE) & Series II L36 (1995-1999 SE, SSE, SLE) and common problems for the Series I and II L67 (all supercharged models 92-99) Including Olds 88's, Olds LSS's and Buick Lesabres Please use General Chat for non-mechanical issues, and Performance and Brainstorming for improvements.

Reply
 
 
 
Thread Tools Search this Thread
Old 10-04-2009, 06:01 PM   #1
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Sep 2009
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
alexM is on a distinguished road
Default Help diagnose ignition switch and no start

Hello all,first time poster. I have a 99 Bonneville SE. The problem is when the key is turned to the ON position, none of the lights on the dash come on. Of course when turned to the START position, it will not crank either. Have checked the battery wire connections and all fuses and all seems fine.
What else I have found is:
1. All accessories that do not rely on the key position work, ie. lights, interior lights, horn, trunk release, etc.
2. When key in ON, the radio and wipers will work. The turn signals will not.
3. When turned to START, I can hear a relay under the dash click.
4. Same conditions in either Park or Nuetral.
5. Security light does not come on nor flash at any time. None of the dash lights come on.

Thought it might be the ignition switch but do not have a wiring diagram. I found the following on another site, can someone verify the wire colors.
Red - power in
Yellow - starter
Pink - ignition
Brown - ignition 2
Orange - accessory
Could not find info on the other wires going to the switch under the dash.

Have power on the red. With the key in ON, there is power on the brown wire but not on the pink. When turned to START, there is power on the yellow.
Any help appreciated especially what wires to diagnose and where they are located. Should the pink wire be hot when key is ON?

Last edited by alexM; 10-04-2009 at 06:03 PM.
alexM is offline   Reply With Quote
Old 10-04-2009, 06:07 PM   #2
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Need to check and test both battery cables on both ends, clean them good.

https://www.gmforum.com/t279492/
https://www.gmforum.com/t279494/
Danthurs is offline   Reply With Quote
Old 10-04-2009, 07:13 PM   #3
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Sep 2009
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
alexM is on a distinguished road
Default

[QUOTE=Danthurs;1392655]Need to check and test both battery cables on both ends, clean them good.[QUOTE]

As mentioned, I already did that. Battery is good too. Also verified I have good ground on the engine and body back to the battery.
alexM is offline   Reply With Quote
Old 10-04-2009, 07:30 PM   #4
Retired Senior Admin

Expert Gearhead
 
Danthurs's Avatar
 
Join Date: May 2006
Location: Sheboygan Wisconsin
Posts: 29,661
Thanks: 0
Thanked 16 Times in 13 Posts
Danthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to allDanthurs is a name known to all
Default

Did you test the cable it'* self? They can corrode on the inside and cause the problems you are seeing.
Danthurs is offline   Reply With Quote
Old 10-05-2009, 03:45 PM   #5
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Sep 2009
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
alexM is on a distinguished road
Default

Yes I did pull back the boots and checked the wire ends for corrosion. Also checked the impedence and that was good as well. Checked that both sides of the MaxiBus has power.
Checked the circuits at the fuse box on the drivers side. When the key is ON, I verified that the radio and wiper circuits are hot. Also verified that the turn signal, Misc Engine Controls, and the Transaxle circuits are indeed not hot when the key is on. I did not check all circuits on the block but enough to prove that some circuits are hot and others are not when the key is on.
alexM is offline   Reply With Quote
Old 10-05-2009, 08:37 PM   #6
Member
Posts like a V-Tak
 
99bonnefan's Avatar
 
Join Date: Sep 2009
Posts: 61
Thanks: 0
Thanked 0 Times in 0 Posts
99bonnefan is on a distinguished road
Default

I have the FSM for the 99 model, yes the pink wire should be hot in run . Pm me if you want a pic of this schematic.
99bonnefan is offline   Reply With Quote
Old 10-05-2009, 10:58 PM   #7
Junior Member
Posts like a Ricer Type-R
Thread Starter
 
Join Date: Sep 2009
Posts: 12
Thanks: 0
Thanked 0 Times in 0 Posts
alexM is on a distinguished road
Default

Thanks BonneFan, I'll take you up on it. My post count is not high enough to be allowed to PM so I left you a visitor message on your profile.
alexM is offline   Reply With Quote
 
 
Reply

Related Topics
Thread Thread Starter Forum Replies Last Post
Help changing ignition switch. alexM 1992-1999 3 12-07-2009 02:34 PM
Help diagnose 2 codes Maymybonnieliveforevr 1992-1999 9 10-18-2006 08:56 PM
help me diagnose this gojo83 2000-2005 7 08-13-2006 02:12 AM
Got Codes...Help Diagnose! 95neongirl 1992-1999 37 11-17-2003 11:01 PM
Help Diagnose my problem Please! 95neongirl 1992-1999 9 10-05-2003 02:05 PM


Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off



All times are GMT -4. The time now is 09:17 AM.


We are a participant in the Amazon Services LLC Associates Program, an affiliate advertising program designed to provide a means for us to earn fees by linking to Amazon.com and affiliated sites.