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Jim Grant's Tech Tips
97
Plymouth Voyager, No Mileage Display
Q: I Have a ‘97 Plymouth Voyager 3.0. The
odometer shows no mileage. I was told I needed a body control module and
need to find someone who can put the correct mileage on the OD. Is this
true? Robert
A:
You want to be sure, without question, your vehicle needs a Body Control
Module (BCM). The BCM could be viewed as a control center; it receives
information that it provides responses to. Example, when you turn on the
wipers you’ve actually sent a request to the BCM not the wipers. The BCM
then commands wiper action. The dash display, gauges, lights, speedometer,
odometer, etc. are also the result of information processed by, then sent
out by the BCM. The BCM is a special order item, dealer only. When an
order is placed a variety of questions are asked, Why? because the BCM
will be preprogrammed for the vehicle it is being installed in. That includes
current mileage. The BCM is not cheap and don’t even think about returning
it if diagnosis is incorrect. Also, you will have to pay about a $1000
core charge if you do not have the old BCM to turn in when acquiring the
replacement. The bottom line, without question be sure your vehicle needs
a BCM and not a new dash display.
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