1121 SPN Fault Code

Name:

EBS Brake Switch

Description:

Switch signal which indicates that the brake pedal is being pressed. The EBS brake switch is independent of the brake light switch and has no provisions for external connections.00b = Brake pedal is not being pressed 01b = Brake pedal is being pressed 10b = Error 11b = Not available

1121 spn fault code name is EBS Brake Switch. If you don't take the time to look into 1121 spn fault when it arises, it can add up quickly. One small issue like 1121 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 1121 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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