OBD Guide
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C1431

Brake Pedal Load Sensing Switch On Stuck Malfunction

C1431 is an OBD-II diagnostic trouble code meaning: Brake Pedal Load Sensing Switch On Stuck Malfunction. Common causes: brake pedal load sensor contacts sticking, open or short circuit in wiring harness. Estimated repair cost: $56–167.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$56–167 (est.)

Symptoms

  • The passive safety system fault indicator is on
  • Incorrect operation of the braking system
  • Errors in the ABS or ESP system

Causes

  • Brake pedal load sensor contacts sticking
  • Open or short circuit in wiring harness
  • Control unit malfunction
  • Mechanical damage to the sensor

How to Fix

  1. Check the condition of the brake pedal load sensor
  2. Check wiring harness for open or short circuit
  3. Replace sensor if necessary
  4. Reset the error and check the system

Related codes

C1430C1432

FAQ

What does the C1431 code mean?

C1431 is an OBD-II diagnostic trouble code that indicates: Brake Pedal Load Sensing Switch On Stuck Malfunction

What causes a C1431 error code?

The most common causes of C1431 include: Brake pedal load sensor contacts sticking; Open or short circuit in wiring harness; Control unit malfunction; Mechanical damage to the sensor.

How do I fix a C1431 diagnostic trouble code?

To fix C1431: Check the condition of the brake pedal load sensor. Check wiring harness for open or short circuit. Replace sensor if necessary. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1431?

Limited driving only, diagnose soon

How much does it cost to fix C1431?

The estimated repair cost for C1431 is $56–167. Actual cost depends on your vehicle, location, and labor rates.

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