350 XL SERIES 2001 OWNERS MANUAL
C-12
6. With the power and ground connections complete, all functions of the control unit can be checked at the
leads to the 4-way extended-wire pigtail. The brown wire is the door switch, the white wire is the power
switch, and the yellow wire is the ignition override.
WARNING: Keep all fingers; arms and legs clear of the step mechanism while performing these
tests.
7. While holding the white wire to the battery's positive (+) post, touch the brown wire to the battery's
negative (-) post. The step should extend. Remove the brown wire and the step should retract.
8. As in Step 7 extend the step again. With the step extended, disconnect the white wire first and then
disconnect the brown wire. The step should remain extended.
9. With the step still extended, touch the yellow wire to the battery's positive (+) post. The step should
retract.
10. At this point, refer to the control unit. On step models with the numbers #909514, #909515 or #90959
1, all step functions have been tested. Proceed to step 11. On step models with the numbers #909513,
#909516, #909590 or #909592, test the "Last Out" feature by disconnecting the yellow wire and then
touching the brown wire to the battery's negative (-) post. The step should extend and remain extended.
11. If any of the step functions do not work, the source of the malfunction is either in the control unit and/or
the motor. Proceed to the testing the motor section. If all of the step functions do work, the malfunction is
either in the door switch, the power switch or the vehicle wiring. Proceed to testing the 4-way plug -
vehicle half section.
Testing the Motor
12. Steps equipped with the permanent magnet motor require disconnecting the motor leads from the
control unit before applying power to the motor leads (see Figure 6). To disconnect the motor leads,
disassemble the motor lead wire connector seal.
NOTE: Failure to disconnect the motor wire leads from the control unit prior to applying power to
the motor leads will damage the control unit and void warranty.
NOTE: Do not cut any motor or control unit wire leads. Any leads that have been cut will void the
warranty.
After the motor leads have been disconnected, connecting the motor's red wire lead to the positive (+) post
of the battery and the motor's yellow wire lead to the negative (-) post of the battery will extend the step.
Reversing the lead connections will retract the step. If the step
extends and retracts during this test, the condition of the step
motor is good.
Testing the 4-way Plug - Vehicle Half
13.To check the main power source, connect the voltmeter
between the red wire from the four-way plug (vehicle half) and
the ground terminal at the end of the control unit's 10-gauge
green ground wire (See Figure 7). The reading should be a
minimum of 12 volts DC.
If the voltage reading is low, there may be a loose or corroded
connection at the battery, or a low level on the battery itself. If
the voltage reading is zero (0) volts, check the 25-amp
fuse/circuit breaker, all connections, and the condition of the
wiring between the battery and the plug.
Summary of Contents for 2001350 XL
Page 12: ...350 XL SERIES 2001 OWNERS MANUAL A 8 MAINTENANCE RECORDS DATE DEALER SERVICE PERFORMED...
Page 18: ...350 XL SERIES 2001 OWNERS MANUAL B 6 NOTES...
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Page 32: ...350 XL SERIES 2001 OWNERS MANUAL C 14 STEP MOTOR ASSEMBLY DIAGRAM...
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