WORKHORSE CUSTOM CHASSIS
Service Manual
Automatic Transmission – Allison
2007 W Series
© 2006 Workhorse Custom Chassis — All Rights Reserved
SECTION
7.2
PAGE
101
2007 W Series Chassis
WSM082106
parameter is the commanded current of the pressure
control A solenoid circuit at the control module.
PC Sol. B Actual Current:
Displays 0.00-1.1 amps.
This parameter is the actual current of the pressure
control solenoid B circuit at the control module.
PC Sol. B Ref. Current:
Displays 0.00-1.1 amps. This
parameter is the commanded current of the pressure
control solenoid B circuit at the control module.
PC Sol. A Duty Cycle:
Displays 0-100 percent. This
parameter is the commanded state of the pressure
control A solenoid expressed as a percentage of
energized On time.
PC Sol. B Duty Cycle:
Displays 0-100 percent. This
parameter is the commanded state of the pressure
control solenoid B expressed as a percentage of
energized On time.
Previous Gear:
Displays 0-7. This parameter displays
the most recent gear the transmission has completed.
During an upshift or downshift it continues to display the
gear it was currently in until the new gear position has
been successfully completed.
Requested Torque:
Displays a range of 0-9,999 lb ft.
This parameter indicates the amount of torque required
by the driver.
Service Brake Status Inverted:
Displays Enabled or
Disabled. This parameter indicates the status of the
brake switch. Enabled indicates that the brake pedal is
not depressed. Disabled indicates that the brake pedal
is depressed.
Shift Solenoid C:
Displays On or Off. This parameter
is the commanded state of the shift solenoid C valve.
On represents a commanded energized state, current
is fl owing through the solenoid. Off represents a non-
commanded state, current is not fl owing through the
solenoid.
Shift Solenoid D:
Displays On or Off. This parameter
is the commanded state of the shift solenoid D valve.
On represents a commanded energized state, current
is fl owing through the solenoid. Off represents a non-
commanded state, current is not fl owing through the
solenoid.
Shift Solenoid E:
Displays On or Off. This parameter
is the commanded state of the shift solenoid E valve.
On represents a commanded energized state, current
is fl owing through the solenoid. Off represents a non-
commanded state, current is not fl owing through the
solenoid.
Shift Solenoid C Open/Short to GND:
Displays Yes
or No. This parameter indicates if an open or a short
to ground exists in the feedback signal from the shift
solenoid C to the powertrain control module (PCM).
Shift Solenoid C Short to Volts:
Displays Yes or No.
This parameter indicates if a short to B+ exists in the
feedback signal from the shift solenoid C to the PCM.
Shift Solenoid D Open/Short to GND:
Displays Yes
or No. This parameter indicates if an open or a short
to ground exists in the feedback signal from the shift
