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C0290

Brake Pedal Stroke Sensor Circuit Malfunction

The brake control module has detected an out-of-range signal from the brake pedal stroke sensor. Pedal travel information is required for brake assist and electronically boosted braking.

  • Check engine light: Not always
  • Emissions related: No
  • Repair difficulty: medium

Symptoms

  • ABS warning light on
  • ESC/stability control deactivated
  • Possible reduced brake assist
  • Speedometer may behave erratically

Common causes

Ordered by how often each turns out to be the cause.

  • Pedal stroke sensor failedCommon
  • Sensor mounting or pedal linkage misadjustedPossible

Parts involved

  • Brake Pedal Stroke Sensor
  • Brake Control Module
  • Sensor Wiring

C0290 is a generic OBD-II code defined by SAE J2012. Exact wording and diagnostic procedure vary by manufacturer and model. Code definitions are drawn from the public-domain OBDex dataset; the workshop notes are our own.