Jul 02 2009
My speedometer stopped working on my 1999 c2500, i’ve replaced the speed sensor. What else might I try?
Try this.
1) disconnect the positive battery cable
2) turn key to “ON” position
3) touch positive cable to positive battery terminal, hold for 5 seconds and pull away.
4) repeat step 3 4 to 5 times
5) Turn Key off and reconnect battery.
6) Start truck
if everything seems to work again, it may last a while for you or it may go back to not working. In this case replacement of the Gauge Cluster will need to be done. Dealer only as the Odometer has to be reset to the same as the one you have.
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