Had some work done on an after market alarm system and now my tachometer
has spun completely clockwise and is hitting the peg. Tachometer doesnt
move at all now. Speedometer is OK. Have they just unplugged something
Any ideas welcome. Rather fix it myself than drive all the way back to
the alarm place.
TRY THIS!!! take and hold the trip button in on the odometer and turn the
ignition key on while still holding it and see if the cluster goes into a
self diagnostic mode to reset the gauges.
Thanks for the response, but unfortunately none of the gauges responded at
all. I also tried disconnecting the battery, but that had no effect either.
Where does the tachometer get its information from? Is there a sensor in the
transmission that may have gotten unhooked?
I don't think it has anything to do with what they did unless the battery
went dead on them. I have seen this before and a weak battery will cause the
gauges to peg full right. If the gauge bounces on the peg as you start it
then you know it is trying to work. When you hold the trip button in as I
said does the cluster go into a mode that may give a number where the
odometer is? If not you may have to have the dealer take a look at it.
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