Jim Grant's Tech Tips
'01 Saturn L200 Replacing a BCM at Home
Q: My 01 Saturn L200
needs a new Body Control Module (BCM). Some of my dashboard gauges work
sparingly. I have had it diagnosed at the dealer I purchased it from as
well as a reputable garage and both have confirmed the need for a new
BCM. I was quoted over $400 in both places. Yesterday the odometer froze.
Is the BCM or engine control unit still tracking my mileage, and just
not relaying to the dash or is it completely frozen? Where is the BCM
located? How difficult is it to replace at home?
The Body Control Module (BCM) is a breeze to replace. The BCM is located
on the top of the glove box on your Saturn and requires few tools to remove
and install. But there is a but to this one. The BCM has to be programmed
or will not work. The only people that can program the BCM are the ones
with the costly tools. It is the BCM and programming of it that is biggest
part of the job, money wise. The labor to remove and replace it is the
easy part. As for what is happening with the mileage? It is hard to say.
The BCM is what stores and reports the mileage information.