prime mover smx45 Master Service Manual page 186

F-code Section
PT S5.0
Electrical Functions
Version no T-code
002 SMX
Code E101 - Transistor Controller Does Not Correspond with the Type of Truck
Reason
Possible Causes
with corrective
actions/checks
Reason
Possible Causes
with corrective
actions/checks
Reason
Possible Causes
with corrective
actions/checks
Reason
Possible Causes
with corrective
actions/checks
184
Return
C-code
5000
NOTE!
Transistor controller is not compatible with ETAC software.
1. Incorrect transistor controller installed in truck.
Code E104 - Brake Power Error
Transistor controller could not detect presence of brake coil.
1. Open circuit in brake circuit.
a. Check brake or brake coil wiring for a short or open wire.
2. Master control relay missing or stuck open.
3. Main contactor open circuit (especially after it has closed.)
4. Bad transistor controller.
5. Open in wire 57 or 26.
Code E106 - Digital Output or Field Overcurrent
Transistor controller attempted to deliver more current than allowed to main contactor coil; traction motor field
winding, or digital output.
1. Short circuit in transistor controller output circuit.
a. Check main contactor coil, traction motor field winding, digital output and associated wiring.
b. Replace transistor controller.
Code E107 - Contactor Off
Contactor probably present but transistor controller could not close it successfully.
1. Problem with main contactor tips.
a. If contactor clicks prior to getting this code, try polishing contactor tips with a clean pencil eraser. If
this does not work or there is permanent contactor damage, replace contactor.
2. Low voltage.
a. Try closing contactor with a known-good battery.
3. Short in contactor coil.
a. Replace contactor.
Master Service Manual
Fault codes 100 and over are logged. The
log can contain multiple faults with the
same number code. Throttle is not allowed,
outputs are off (brake is mechanically
applied), and main contactor is dropped.
Code is cleared when problem is resolved
and truck is turned OFF and back ON
(unless otherwise noted.)
2006-12-12