Main code 41 indicates the ECU has detected either an open circuit or a short-to-ground in a solenoid or the solenoid wiring. The DO NOT SHIFT response is activated when this code is detected and all solenoids are turned off.
Neutral start is inoperable; all display segments are on if the code is logged during ECU initialization (ignition on).
Allison WTEC II Fault Code: 41 PID: SPN: 21 FMI: Open or short-to-ground, F solenoid circuit
Allison WTEC II Fault Code: 41 PID: SPN: 16 FMI: Open or short-to-ground, E solenoid circuit
Allison WTEC II Fault Code: 41 PID: SPN: 15 FMI: Open or short-to-ground, D solenoid circuit
Allison WTEC II Fault Code: 41 PID: SPN: 14 FMI: Open or short-to-ground, C solenoid circuit
Allison WTEC II Fault Code: 41 PID: SPN: 13 FMI: Open or short-to-ground, B solenoid circuit
Allison WTEC II Fault Code: 41 PID: SPN: 12 FMI: Open or short-to-ground, A solenoid circuit
