Speedo malfunction
Lead Driver
Joined: May 2003
Posts: 9,303
Likes: 48
From: Lyndonville, Vermont
Well its about time..LOL .Don't bother its not that. I changed clusters and no change. Changing the tone ring helped alot but it wasn't dead smooth until I unplugged the abs module...I wish I knew whats going on...I'm gonna work on it more this summer..
Dick
Dick
Post Fiend
Joined: Apr 2005
Posts: 5,720
Likes: 5
From: Washington state
ABS controller requires rock steady pure DC batt. voltage to pins 1,9 and 12
put a digital storage scope on these pins and monitor
you may have a failing alternator diode with AC output ripple on the DC or intermittnet fuses or wiring on those circuits that drops voltage on road impacts
may be failed RABS controller with shorted loading on an input from the DSS
there is a pinout resistance test for the ABS RABS controller but can not find it now....may be on the web
put a digital storage scope on these pins and monitor
you may have a failing alternator diode with AC output ripple on the DC or intermittnet fuses or wiring on those circuits that drops voltage on road impacts
may be failed RABS controller with shorted loading on an input from the DSS
there is a pinout resistance test for the ABS RABS controller but can not find it now....may be on the web
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