Allison WTEC II Fault Code: 33 PID: SPN: 12 FMI: Sump oil temperature sensor, failed low

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 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 12, 33, Allison, Code, failed, Fault, FMI, II, Low, Oil, PID, Sensor, SPN, Sump, Temperature, WTEC

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