1851 SPN Fault Code

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Transmission Shift Inhibit Indicator

Description:

State signal indicating a transmission request for the Shift Inhibit Indicator to be active or inactive. The shift inhibit indicator can be of lamp or text form, located on (but not limited to) the shift console, instrument cluster, or cab display. Definition of the cause of the �range inhibit� state is at the discretion of the transmission manufacturer.Transmission manufacturers may want to indicate that they currently cannot make a requested shift. This could be due to inappropriate vehicle speed or other restrictions. Distinctions in meaning between the continuous and flashing are left to the transmission manufacturer. 00b = Inactive; shift is not inhibited 01b = Active (on continuously); shift is inhibited 10b = Active (flashing) 11b = Take no action

1851 spn fault code name is Transmission Shift Inhibit Indicator. If you don't take the time to look into 1851 spn fault when it arises, it can add up quickly. One small issue like 1851 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 1851 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.

1851 SPN Fault Code

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