Question about 2000 Jeep Cherokee

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Occaisionly my car's odometer says "no bus"

When this happens all the needles go to zero, the car still runs and everything. but if freaks me out a bit, wts up with that

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  • Anonymous Oct 20, 2008

    When it happens to me, I just give the dashboard above the instrument cluster a good sharp smack. The gauges return and it acts like you are just starting up, airbag light, etc. Probably a loose component and/or harness connector. For me it is not worth the time to troubleshoot. Very intermittent...1x/month.

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  • Jeep Master
  • 61,168 Answers

Have a OBD code test run, this may be a vehicle speed sensor problem, if it is the sensor will set a code in the computer. If it is not the sensor then the speedometer has a circuit board fault.

Posted on Oct 16, 2008

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How do I fix speedometer that is stuck below zero?


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All the modules are connected together to communicate with each other via the PCI bus. It is possible that one of the modules is pulling the bus down.Since the vehicle won't start it could be any one of the modules. It will be a process of elimination to find the faulty one by disconnecting them one at a time. Here are a few, powertrain control module (the one you replaced) Instrument cluster, overhead console, anti-lock brakes, airbag. Since the cluster unplugged wont read anymore, just try to start the vehicle to see if that was the one. Otherwise see if the odometer message of "no bus" goes away after each one is unplugged.

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