3448 SPN Fault Code

Name:

Auxiliary Input Ignore Switch

Description:

Switch signal which overrides other switch input’s ability to disable an engine’s operating condition. 00b = Off 01b = On 10b = Error 11b = Not Available This switch input can be used to prevent the PTO from disengaging if another switch input’s state changes. For example, if the PTO is normally disengaged when the clutch is depressed, then this switch would allow the user to use PTO while depressing the clutch. Interlock switches which are specifically intended to inhibit PTO operation have priority over this parameter.

3448 spn fault code name is Auxiliary Input Ignore Switch. If you don't take the time to look into 3448 spn fault when it arises, it can add up quickly. One small issue like 3448 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 3448 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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