900 Convertible Top Troubleshooting Guide
How to determine if Updates Campaigns have been performed
The
following
chart
includes some quick visual checks you can make to determine if a
particular campaign or update has actually been performed on a 900 Convertible. Note
that this is not a guarantee that all of the steps of a particular PSI or campaign have
been performed.
Old
“19
Point”
Update, see revised PSI
I
Right hand 5th bow latch motor microswitch should be disconnected (gone)
Check for proper ECM you SHOULD NOT be able to raise the windows while the top is
being
raised. (ECM software version 0402 or higher.)
Look at header switches through opening in header silver arm and pure white plastic
arm are early versions. Plastic arm on latest switch is an “off white color”.
The 5th bow potentiometer should have a “drive bracket” installed, and the potentiometer
arm should be approx.
long
The 5th bow motor on the passenger’s side of the car should have a protective plate
installed over the gear, so the wiring harness can’t be damaged by the gear.
Service Campaign
see revised PSI
I
“2nd bow drive link” installed
2 holes drilled in bottom of front door pockets. (1997 models have the holes drilled differ-
ently from the Factory.)
Customer Satisfaction Campaign
Bow Latch Motor Update,
see MI 811-1758
(The 5th bow latch motor assembly has been updated as from VIN
in Fac-
tory production)
1
Round plug in hole over 5th Bow Latch Motor
How to Determine Which Type of Top is Installed on the Convertible you are going
to work on:
1
Original M95 900 Top is “ASC”: rear window is glued in place
2
Later style Top is
rear window is clipped in place.
B
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