971 SPN Fault Code

Name:

Engine Derate Switch

Description:

Switch signal used to activate the torque limiting feature of the engine. The specific nature of torque limiting should be verified with the manufacturer.00b = Off 01b = On 10b = Error 11b = Not available

971 spn fault code name is Engine Derate Switch. If you don't take the time to look into 971 spn fault when it arises, it can add up quickly. One small issue like 971 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 971 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.

971 SPN Fault Code

Name:

Description:

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