Saab 900 Convertible, Руководство пользователя

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900 Convertible Top Troubleshooting Guide
b. Programming?
Reprogram top according to PSI
C
.
Main motor or 5th bow potentiometer faulty?
Monitor the “Main Motor Potentiometer” and “5 Bow Potentiometer” with
Tech 2 using the line graph function as you cycle the top completely.
Watch
for irregularities in the “Main Motor Potentiometer” and “5 Bow
display at the point where the top stopped. If the graph “spikes”
dramatically, there is an open or a short in the potentiometer.
Tech 2 may not reveal an open circuit in the potentiometer. You can also use
a digital multimeter or a ‘scope to measure the potentiometer output voltage.
The “Main Motor Potentiometer” voltage can be measured between pins 29
and 30 of connector K42 at the TSAS ECM. The “5 Bow Potentiometer” volt-
age can be measured between pins 29 and 31 of connector K42 at the TSAS
ECM.
Replace potentiometer if needed. Reprogram top according to PSI
7. Top hesitates when lowering top
a. Programming?
When the top is about way back, the main motor stops and the 5th bow
motor starts an upward motion to bring the 5th bow closer to the 4th bow.
If this is the problem you are experiencing, reprogram according to PSI
Pay special attention to the measurements used to calculate
overlap values of the main motors and the 5th bow motors.
If you are still experiencing this problem, you can try:
1. lowering main motor overlap values one unit at a time or
2. raising 5th bow overlap values one unit at a time
Do not change overlaps by more than 3 units because this will cause other
problems, such as the rear window hitting the headrests.
b. 2nd bow catching on fabric?
Perform Customer Satisfaction Campaign 428 if it has not been completed.
The 2nd bow does not flip back, causing it to contact the front side rails. This
can bend the balance link. If balance links are bent, they are available as
spare parts:
LH 47 67 398, RH 74 97 506
See illustration on following page.