681 SPN Fault Code

Name:

Transmission Gear Shift Inhibit Request

Description:

Command signal to inhibit gear shifts. 00b = Gear shifts are allowed (disable function) 01b = Gear shifts are inhibited (enable function) 10b = Reserved 11b = Take no action (leave function as is)

681 spn fault code name is Transmission Gear Shift Inhibit Request. If you don't take the time to look into 681 spn fault when it arises, it can add up quickly. One small issue like 681 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 681 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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SPNFMI Faults and Engine error code check tool. SPN code listing with names and descriptions.

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