1821 SPN Fault Code

Name:

Position of doors

Description:

Signal which indicates the actual position of the doors. 0000b = At least 1 door is open 0001b = Closing last door 0010b = All doors closed 0011b to 1101b = Not defined 1110b = Error 1111b = Not available

1821 spn fault code name is Position of doors. If you don't take the time to look into 1821 spn fault when it arises, it can add up quickly. One small issue like 1821 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 1821 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.

1821 SPN Fault Code

Name:

Description:

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