Code Definition

C1287 — Booster Pedal Force switch circuit Failure

System: Chassis  |  Type: Manufacturer-Specific  |  Make: Generic

About C1287

C1287 is a manufacturer-specific chassis diagnostic trouble code. It belongs to the C-prefix family of codes, which covers chassis, braking, steering, suspension, or stability-control faults.

When C1287 is stored, the module has detected an electrical-circuit fault in the wiring, connector, or driver associated with the named component.

Scanning & clearing: Chassis (C) codes are stored in the ABS, traction control, or stability-control modules. An enhanced or OEM-level scan tool is usually required to read and clear them.

C1287 is a manufacturer-specific code. The same code string on a different make may have a different meaning. Always confirm the code's definition against the vehicle's service information for the specific make and model under test.

Code Information

The C1287 fault code indicates that the ABS or stability control module has detected a fault in the brake booster pedal force switch circuit. The booster pedal force switch measures how hard the driver is pressing the brake pedal and provides this information to the ABS module for use in panic brake assist, electronic brake force distribution, and stability control interventions. The switch is typically mounted on the brake booster or master cylinder and uses a variable resistance or hall effect signal to communicate pedal effort. When the ABS module detects an out of range signal, a circuit o...

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