5558 SPN Fault Code

Name:

Supplemental Fan Velocity Status

Description:

Status of the rotational velocity of Supplemental Fan. Used to indicate if the fan is spinning at the desired speed. If fan is not able to obtain the commanded speed, velocity error is indicated. If fan is unable to spin, the fan is in Fan Stall condition.0000b = At Velocity (Fan OK) 0001b = Velocity Error (unable to achieve commanded speed) 0010b = Fan Spin Up 0011b = Fan Spin Down 0100b = Fan Stall 0101b to 1101b = Reserved 1110b = Error 1111b = Not available

5558 spn fault code name is Supplemental Fan Velocity Status. If you don't take the time to look into 5558 spn fault when it arises, it can add up quickly. One small issue like 5558 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 5558 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.

5558 SPN Fault Code

Name:

Description:

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