General 1967-2002 F-Body Tech For general F-Body discussion that does not fit in any other forum.
For F-Body Technical/Information Discussion ONLY

94 speedometer inop

Thread Tools
 
Search this Thread
 
Old Dec 3, 2011 | 10:39 AM
  #1  
sky10237's Avatar
Thread Starter
Registered User
 
Joined: Dec 2011
Posts: 1
From: Southampton co, VA
94 speedometer inop

94 V 6 after repair of front damage including air bag replacment speedometer and cruise control do not work. no check engine light on. everthing working prior to accident. all guages still working. when key turned on speedometer does come off peg. did not find any loose wires under dash. Any ideas on how and where to troubleshoot problem? Could it be related to repair or just a failure?
Thanks

Last edited by sky10237; Dec 3, 2011 at 01:00 PM.
Old Dec 5, 2011 | 10:27 AM
  #2  
bobdec's Avatar
Registered User
 
Joined: Nov 2007
Posts: 910
Re: 94 speedometer inop

Got some ideas, but w/o a DTC nothing makes sense. If VSS to PCM circuit was open you would get a DTC, if PCM to speedometer was open circuit then you would get a different DTC. Circuit is an analog sine wave from the VSS to PCM then the PCM puts out a digital signal to the speedometer and cruise control. Any open or short will cause a DTC. Voltage and grounds to dash and cruise are different sources. If you had a scanner with speed info you could verify VSS to PC is OK or not that would isolate the problem a little. If it worked before the accident and does not work now take it back, insurance should cover total repairs, or the shop, if it left some connection incorrect.
Related Topics
Thread
Thread Starter
Forum
Replies
Last Post
LazyLemming
Drivetrain
3
Aug 29, 2015 07:36 PM
pologreen97z
General 1967-2002 F-Body Tech
2
May 18, 2015 02:17 PM
nosliw
Appearance
5
Apr 27, 2015 04:01 PM
mattstrike
General 1967-2002 F-Body Tech
1
Mar 12, 2015 10:12 PM
Michael Ozorowsky
Appearance
6
Oct 2, 2002 01:58 PM




All times are GMT -5. The time now is 07:37 AM.