TCM FB-8 Series, Service Manual

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Fig. 3.3 Inverter Unit (pump motor) Circuit
(1.0- to 1.8-ton Trucks (excluding those with an Orbitrol steering system))
Truck model selection switch status
Model
selection
option 1
Model
selection
option 2
1-ton class
Opened
Opened
2-ton class
Connected
Connected
3-ton class
Connected
Connected
*
Connected:
To be connected to the
signal wire GND.
The direction of current at the time of the steering wheel being turned clockwise.
*
Short-circuit “SIG” and “-“ terminals of the sensor not in use.
3. CONTROL SYSTEM