Filter
Top Products
ASPIRE SERVICE MANUAL
PAGE 6
2003SUNRISE MEDICAL
Test Left Motor Short
Check that the batteries are fully charged and in good con-
dition; and check all cables and connections. Check the
connections to the left motor, look for a loose or damaged
connector. Take a resistance reading from pin 3 to pin 9
and pin 3 to pin 7 or pin 8, see (figure A3.3.1) and (A3.3.2),
if the all the circuits are open (resistance is greater than 10
K ohm), then replace the controller. If the reading is short
(resistance is less than 10 K ohm), proceed to check the
4-pin motor connector.
Measure the resistance from the bottom contact of the red
thick wire on the 4-pin left motor connector to each of the
top contacts of the connector see (figure A3.3.3). Measure
the resistance from the bottom contact of the black thick
wire on the 4-pin left motor connector to each of the top
contacts of the connector see (below right). If all of the
readings are open, then replace the main harness. If any
of the readings are short, then replace the left motor.
3.3 Three Bars - Left Motor Wiring Trip
The left hand motor has a short circuit to a battery connection.
A3.3.1
A3.3.2
A3.3.3
Test 1
Test 2
Test 3
Test 4
Understanding VSI Controller Diagnostics Codes (cont.)
If any of the readings are short, then replace the left motor.
If the all the circuits are open (resistance is greater than 10 K ohm), then replace the controller.
If all of the readings are open, then replace the main harness.