Allison WTEC II Fault Code: 33 PID: SPN: 23 FMI: Sump oil temperature sensor, failed high

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.

Categories Allison, DTC TRUCKS, WTEC II Tags 23, 33, Allison, Code, failed, Fault, FMI, High, II, Oil, PID, Sensor, SPN, Sump, Temperature, WTEC

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