9770 SPN Fault Code

Name:

OBP Interlock – Key Switch Position

Description:

Key switch position requirement is not met to allow initiation of on board programming (OBP). 00b = Off: Key switch position is permitting on board programming 01b = On: On board programming is inhibited due to key switch position 10b = Error 11b = Not available

9770 spn fault code name is OBP Interlock – Key Switch Position. If you don't take the time to look into 9770 spn fault when it arises, it can add up quickly. One small issue like 9770 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 9770 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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