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 failure
2. 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 WTEC II Fault Code: 32 PID: SPN: 77 FMI: C3 pressure switch open, Reverse range
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
