Allison WTEC II Fault Code: 61 PID: SPN: 00 FMI: Retarder oil temperature sensor, failed low

Main code 61 indicates the ECU has detected a hot fluid condition in the output retarder.

Possible causes (but not all causes) for hot fluid are:
1. Prolonged retarder use.
2. Low fluid level.
3. High fluid level.
4. A retarder apply system that allows the throttle and retarder to be applied simultaneously.
5. Cooler inadequately sized for retarder.

Categories Allison, DTC TRUCKS, WTEC II Tags 00, 61, Allison, Code, failed, Fault, FMI, II, Low, Oil, PID, Retarder, Sensor, SPN, Temperature, WTEC

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