SC400_Dude Posted February 24, 2011 Posted February 24, 2011 I have two issues: I bought my 92 SC400 a year ago. It has the small issues... the speedo doesn't work and some lights in the instrument cluster don't work. OK so I replaced one of the speedo sensors on the tranny and tested the other one and the speedo still doesn't work. I took out the instrument cluster and replaced the bad bulbs and tested the speedo electronics with an ohmmeter and all seem to be ok, ie, no opens or shorts. The fuses are good, of course... So its gotta be the wiring... which is gonna take some time... can anyone offer further advice before I kill myself checking all the wires? The second issue is the tilt-wheel steering. The tilt work going up and in-out but not going down. So I took off the steering wheel and expose the tilt gearing. I took the springs off and dropped the tilt assembly away from the steering column and ran it with the tilt switches. It works great in every direction. I lubed the gear shaft and the cams where they move the steering column, then reinstalled it and tested it before reinstalling the steering wheel and other stuff. Well, it goes up and down but not before banging into the end. I looked at the sensors and as far as I can tell they are still good. Any ideas on what else it could be? THANKS A MILLION FOR ANYTHING YOU CAN CONTRIBUTE... good
grnsc40095 Posted February 24, 2011 Posted February 24, 2011 This may fix the problem with the steering wheel. http://www.clublexus.com/forums/sc-400-300/49783-tilt-steering-repair.html As far as your speedo/cluster try this link for answers, workshop manual for Sc300/400 http://www.zshare.net/download/5185463529a5bf95/
SC400_Dude Posted February 24, 2011 Author Posted February 24, 2011 This may fix the problem with the steering wheel. http://www.clublexus.com/forums/sc-400-300/49783-tilt-steering-repair.html As far as your speedo/cluster try this link for answers, workshop manual for Sc300/400 http://www.zshare.net/download/5185463529a5bf95/ THANKS! I'LL TRY THOSE FIXES AND SEE WHAT HAPPENS.
SC400_Dude Posted February 25, 2011 Author Posted February 25, 2011 This may fix the problem with the steering wheel. http://www.clublexus.com/forums/sc-400-300/49783-tilt-steering-repair.html As far as your speedo/cluster try this link for answers, workshop manual for Sc300/400 http://www.zshare.net/download/5185463529a5bf95/ HEY THANKS FOR THE WORKSHOP MANUAL BUT IS THERE ANOTHER ONE? THIS ONE IS MISSING A LOT OF PAGES. I WENT TO LOOK FOR AT-78, FOR EXAMPLE AND IT ISN'T THERE. THERE ARE SOME OTHER PAGES I LOOKED FOR AND THEY AREN'T IN THAT MANUAL. THANKS AGAIN.
ScJz Posted March 14, 2011 Posted March 14, 2011 http://www.clublexus.com/forums/sc-400-300/540915-auto-tilt-steering-wheel-fix.html hope this helps..it should fix your Steering wheel problem. Mine was doing the exact same thing and this fixed it.
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