Fixing the CLS on the 87 300D turned out to be pretty simple. I
found a fuse blown. I was sure it was not blown the last time I
checked. I dug out the vac pump, took the 2 wire plug off and took
it apart as in the manual. then replaced the Red fuse. Cycled the
door lock a couple times, then plugged in the + and - cables to the
pump. Shut the doors and cycled the lock. Pump seemed to work (with
vacuum unplugged.) The horn started honking in alarm mode when i
opened the back door. Got it shut off with the door lock.
Then I plugged in the vacuum line, and cycled the switch, and the locks worked.
So I put the plug back together, put the pump away, put it all back
together. And it works. So, I don't know what popped the fuse, or
why it was all screwed up in the first place.
Before I started, I took the door panel of the LR door where the
broken window glass started the whole CLS problem. I found the glass
shop did not clean the broken glass out of the door, and they failed
to replace the plastic liner. So now I need to make a new plastic
liner. Next project, while the 3M glue sets for the 2 hooks that
came loose, is to make the new liner.
I seem to remember in 80-010 that it said something about a reset by
touching the + and _ battery cables together. Mayhaps cycling the
switch with the pump unplugged effectively reset whatever that is.
Still confused, but it is working! On to the next project, the ign switch.
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