3958 SPN Fault Code

Name:

Auxiliary Transmission High Range Actuator

Description:

The auxiliary transmission high range actuator energizes the high range port of an auxiliary transmission, demanding the high range of the auxiliary transmission.

3958 spn fault code name is Auxiliary Transmission High Range Actuator. If you don't take the time to look into 3958 spn fault when it arises, it can add up quickly. One small issue like 3958 can cause a larger component to become damaged without taking the time to investigate. If you suspect your truck is suffering from one of these issues, look into replacing those small components to save money down the road.

Note: The name and description of 3958 code represents text descriptions for faults supported by another coding system and does not necessarily comply with SAE J1939. For a specific engine manufacturer's explanation for codes, please consult the engine's technical manual. See also other spn codes.

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