Main code 32 indicates the transmission gear ratio is correct, but the C3 pressure switch is open when it should be closed. Allison WTEC II Fault Code: 32 PID: SPN: 00 FMI: C3 pressure switch open in low range Allison WTEC II Fault Code: 25 PID: SPN: 77 FMI: Output speed sensor, detected at 0 output rpm, Reverse range Allison WTEC II Fault Code: 25 PID: SPN: 66 FMI: Output speed sensor, detected at 0 output rpm, 6th Allison WTEC II Fault Code: 25 PID: SPN: 55 FMI: Output speed sensor, detected at 0 output rpm, 5th Allison WTEC II...

Main code 32 indicates the transmission gear ratio is correct, but the C3 pressure switch is open when it should be closed. Allison WTEC II Fault Code: 32 PID: SPN: 33 FMI: C3 pressure switch open, 3rd range Allison WTEC II Fault Code: 32 PID: SPN: 00 FMI: C3 pressure switch open in low range Allison WTEC II Fault Code: 25 PID: SPN: 77 FMI: Output speed sensor, detected at 0 output rpm, Reverse range Allison WTEC II Fault Code: 25 PID: SPN: 66 FMI: Output speed sensor, detected at 0 output rpm, 6th Allison WTEC II Fault Code: 25...

Main code 32 indicates the transmission gear ratio is correct, but the C3 pressure switch is open when it should be closed. Allison WTEC II Fault Code: 32 PID: SPN: 55 FMI: C3 pressure switch open, 5th range Allison WTEC II Fault Code: 32 PID: SPN: 33 FMI: C3 pressure switch open, 3rd range Allison WTEC II Fault Code: 32 PID: SPN: 00 FMI: C3 pressure switch open in low range Allison WTEC II Fault Code: 25 PID: SPN: 77 FMI: Output speed sensor, detected at 0 output rpm, Reverse range Allison WTEC II Fault Code: 25 PID: SPN: 66...

Main code 33 indicates the sump temperature sensor is providing a signal outside the usable range of the ECU. This code indicates the sensor failed showing abnormally low temperature readings. Main code 33 Causes: 1. Component or circuit failure2. Extremely high or low temperatures. There are no operational inhibits related to main code 33. The ECU assumes a hardware failure and that transmission temperatures are normal (93oC; 200oF). Temperatures above or below normal cause poor shift quality. Allison WTEC II Fault Code: 32 PID: SPN: 77 FMI: C3 pressure switch open, Reverse range Allison WTEC II Fault Code: 32 PID:...

Main code 33 indicates the sump temperature sensor is providing a signal outside the usable range of the ECU. Main code 33 can be caused by a component or circuit failure or by extremely high temperatures. Main code 33 Causes: 1. Component or circuit failure2. Extremely high or low temperatures. There are no operational inhibits related to main code 33. The ECU assumes a hardware failure and that transmission temperatures are normal (93oC; 200oF). Temperatures above or below normal cause poor shift quality. Allison WTEC II Fault Code: 33 PID: SPN: 12 FMI: Sump oil temperature sensor, failed low Allison...