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ASPIRE SERVICE MANUAL
PAGE 7
2003SUNRISE MEDICAL
Understanding VSI Controller Diagnostics Codes (cont.)
Test Right Motor Open
Check that the batteries are fully charged and in good con-
dition, and check all cables and connections. Check the
connections to the right motor, look for a loose or damaged
connector. Remove the 9-pin Beau plug and check the
resistance across pin 1 and pin 2 as shown on (figure
A3.4.1). If the meter reads between 0 to 1.5 ohms, then
replace the controller.
Use the meter to check the resistance across the two bot-
tom contacts of the thicker wires on the 4-pin motor con-
nector as shown in (figure A3.4.3). If the meter reads
between 0 to 1.5 ohms, then replace the main harness. If
none of the above corrects the problem, replace the right
motor.
Otherwise, check the brushes on the right motor. Ensure
that they are not excessively worn, (replace as required) as
shown in (Figure A3.4.2).
3.4 Four Bars- Right Motor Disconnected
The right hand motor has a bad connection. Check the connections to the right hand module.
A3.4.1
A3.4.2
A3.4.3
If the meter reads between 0 and 1.5 ohms, then replace the controller.
If the meter reads between 0 and 1.5 ohms, then replace the main harness. If this does not correct the prob-
lem, then replace the right motor.