PREVOST X3-45 VIP 2017, Owner'S Manual

Page: 107 / 212

Other Features 5-21
3. Cancel REGEN
From the Aftertreatment main menu, you can cancel a REGEN cycle.
PASSWORD
Certain functions are password-protected. These passwords give the user access to all password-
protected functions. The default password is 0000.
1. Password
The following menus are password-protected and marked with a key symbol in the menus:
- Change Password
- Fleet ID
- Reset Trip Data
- Fault Diagnostics
- Inactive Faults
ALLISON TRANSMISSION
ELECTRONIC CONTROLS
The Allison Transmission electronic controls
have four major elements: The Transmission
Control Module (TCM), the Throttle Position
Sensor (TPS), speed sensors and the
transmission shift selector control pad. Refer to
"Controls & Instruments" chapter. These
components work together to electronically
control the functions of the transmission. The
throttle sensor, speed sensors and shift selector
transmit information to the TCM. The TCM
processes this information and then sends
signals to actuate specific solenoids located on
the control valve body in the transmission. The
action of the solenoids affects hydraulic circuits,
which in turn control the upshifts, downshifts,
and lock-up functions. In addition to controlling
the operation of the transmission, the
transmission electronic controls monitor the
system for abnormal conditions.
When one of these conditions is detected, the
Allison electronic control system is programmed
to automatically respond in a manner which is
safe for the driver, the vehicle and the
transmission. The Allison electronic control
system turns
ON the CHECK TRANS light on
the dashboard, which serves as a fault indicator.
To enhance troubleshooting and to allow
interrogation of the TCM for valuable service
information, the shift selector display on the
transmission control pad or an optional
diagnostic tool can be used. For information
about reading and interpreting diagnostic codes,
refer to Appendix C, "Allison Transmission
Diagnostic Troubleshooting Codes (DTC)".