9174 SPN Fault Code

Name:

Engine Protection Derate Override Status

Description:

Status of overriding an engine protection derate. This is to temporarily override an engine protection derate due to coolant temperature, oil pressure etc� This is for applications such as fire, rescue, and military vehicles to help them get out of emergency situations. The Engine Protection Derate Override Status SPN shall apply to derate applications only (i.e. applications that do not shut the engine down). Vehicles using SPN 1237 Engine Shutdown Override Switch, may still use that SPN to override engine derates as has been industry standard practice. The engine will default to normal derate mode when error or loss of messages occur which will be similar to TSC1 override mode. 00b = Override disabled 01b = Override active 10b = Error 11b = Not Available Note: When engine receives this command indicating derate override active, an engine will remove a derate due to engine protection and will operate at normal full power. When a command is received to disable derate override, the engi

9174 spn fault code name is Engine Protection Derate Override Status. If you don't take the time to look into 9174 spn fault when it arises, it can add up quickly. One small issue like 9174 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 9174 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.

9174 SPN Fault Code

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