9775 SPN Fault Code

Name:

OBP Key Switch Request

Description:

Request to turn the key switch to the ignition or run position and/or prevent the ignition bus from turning off during on board programming (OBP).00b = On board programming device is not requesting key switch on. 01b = On board programming device is requesting key switch on. 10b = Reserved 11b = Don’t care/take no action

9775 spn fault code name is OBP Key Switch Request. If you don't take the time to look into 9775 spn fault when it arises, it can add up quickly. One small issue like 9775 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 9775 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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