Troubleshooting Charts - prime mover smx45 Master Service Manual

Possible Cause
Bad wiring between transistor controller
and main contactor
Bad transistor controller
Bad main contactor coil
Possible Cause
Bad wiring between transistor controller
and motor
Bad transistor controller
Bad motor
Possible Cause
Bad transistor controller
© BT Prime-Mover, Inc.
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3.8. Troubleshooting Charts

The following troubleshooting charts describe a course of
testing and repair for each problem listed. If the given test is
NOT successful, perform the repair listed with the test. If the
given test IS successful, go to the next test or follow the
special instructions given. For electrical legend see
page 196.
Travel (Forward / Rearward) System
1. No travel in either direction, lift/lower okay (Code E106,
Digital output or field overcurrent.)
With main ON/OFF switch OFF and battery disconnected, check wiring between transistor
controller and main contactor (K10.)
With main ON/OFF switch OFF and battery connector disconnected, measure resistance between
J5-16 and J5-4. If resistance is approximately 50 ohms, check wires for shorts to frame, B+, B-, or
other conductors. If none found replace transistor controller.
Disconnect and measure resistance of main contactor (K10) coil. If resistance is not approximately
50 ohms, replace coil.
2. No travel in either direction, lift/lower okay (Code E201
M-error.)
With main ON/OFF switch OFF and battery disconnected, disconnect wires F1 and F2 from the
transistor controller. Check wiring between motor and transistor controller.
With main ON/OFF switch OFF and battery connector disconnected, disconnect drive motor cable
at transistor controller terminal M-. Connect battery connector, turn key switch ON. If Code 1,3
(see page 246) is still displayed, replace transistor controller. If Code 1,3 is not displayed,
disconnect battery, remove wires F1 and F2 at transistor controller and measure resistance in
wiring harness between wires F1 and F2. If less than 1.0 ohm, replace transistor controller.
With main ON/OFF switch OFF and battery disconnected, remove wires F1 and F2 at motor. If
greater than 2.0 ohm, replace motor.
3. No travel in either direction, lift/lower okay (Code E214,
transistor controller CAN timeout.)
Replace transistor controller.
Master Service Manual
F-code Section
PT S5.0
Electrical Functions
Version no T-code
002 SMX
Remedy
Remedy
Remedy
2006-12-12
C-code
5000
189