Allison WTEC II Fault Code: 41 PID: SPN: 12 FMI: Open or short-to-ground, A solenoid circuit

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).

If you want to know other articles similar to Allison WTEC II Fault Code: 41 PID: SPN: 12 FMI: Open or short-to-ground, A solenoid circuit you can visit the category Allison.