OBD Guide

C1116

Stop Lamp Switch

C1116 is an OBD-II diagnostic trouble code meaning: Stop Lamp Switch. Common causes: brake light sensor malfunction, open or short circuit in the sensor circuit. Estimated repair cost: $22–56.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–56 (est.)

Symptoms

  • Brake lights don't work
  • Incorrect operation of ABS or ESP
  • Disabling cruise control
  • Check Engine Light Is On

Causes

  • Brake light sensor malfunction
  • Open or short circuit in the sensor circuit
  • Poor contact in the sensor connector
  • Wiring harness damage
  • Incorrect brake pedal adjustment

How to Fix

  1. Check the operation of the brake lights
  2. Inspect the sensor and its connector for damage
  3. Check the sensor circuit for an open or short circuit
  4. Replace the brake light sensor if necessary
  5. Adjust the brake pedal

Related codes

FAQ

What does the C1116 code mean?

C1116 is an OBD-II diagnostic trouble code that indicates: Stop Lamp Switch

What causes a C1116 error code?

The most common causes of C1116 include: Brake light sensor malfunction; Open or short circuit in the sensor circuit; Poor contact in the sensor connector; Wiring harness damage.

How do I fix a C1116 diagnostic trouble code?

To fix C1116: Check the operation of the brake lights. Inspect the sensor and its connector for damage. Check the sensor circuit for an open or short circuit. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1116?

Limited driving only, diagnose soon

How much does it cost to fix C1116?

The estimated repair cost for C1116 is $22–56. Actual cost depends on your vehicle, location, and labor rates.

See also: Russian version · NationStat