7557 SPN Fault Code

Name:

Hybrid System Protection Override Request

Description:

Indicates the hybrid system protection override request state. This request allows overriding of hybrid system protection features and failure modes allowing hybrid systems to continue to operate, if possible. This is not the physical switch that performs the protection override.See SPN 7548 for the signal for the physical switch. 00b = Not active 01b = Active 10b = Reserved 11b = Don’t care / take no action

7557 spn fault code name is Hybrid System Protection Override Request. If you don't take the time to look into 7557 spn fault when it arises, it can add up quickly. One small issue like 7557 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 7557 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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