8291 SPN Fault Code

Name:

Transmission Manual Mode Indicator

Description:

This parameter indicates if the operator has selected a Manual Mode of the transmission. When a Manual Mode is active, the operator has directly and intentionally restricted the available transmission ranges for the given vehicle direction. A Manual Mode may require direct operator input before any shifts are initiated (e.g. � Upshift � or � Downshift � inputs), or may just prevent the transmission from achieving its maximum range in that direction (e.g. via selection of � Low � or another range below the maximum). When not in Manual Mode, the transmission always selects the optimum range for current operating conditions, and initiates any shifts as needed.Manual Modes are typically associated with forward ranges. However, Manual Modes may also be available in applications where the transmission supports multiple reverse ranges. Manual Mode should not be indicated when the transmission is in Park or Neutral, nor when another vehicle function (e.g. engine braking, adaptive cruise contro

8291 spn fault code name is Transmission Manual Mode Indicator. If you don't take the time to look into 8291 spn fault when it arises, it can add up quickly. One small issue like 8291 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 8291 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.

8291 SPN Fault Code

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