OBD Guide
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C1226

Lamp Brake Warning Output Circuit Short To Ground

C1226 is an OBD-II diagnostic trouble code meaning: Lamp Brake Warning Output Circuit Short To Ground. Common causes: short circuit in wiring, warning lamp fault. Estimated repair cost: $22–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$22–111 (est.)

Symptoms

  • Brake warning light is on
  • Brake warning light does not work
  • Errors in related systems (ABS, ESP)

Causes

  • Short circuit in wiring
  • Warning lamp fault
  • Problems with the control module
  • Wiring harness damage

How to Fix

  1. Check the integrity of the wiring of the lamp control circuit
  2. Inspect and, if necessary, replace the warning lamp
  3. Check the functionality of the control module
  4. Diagnose related systems (ABS, ESP)

Related codes

C1223C1224C1225

FAQ

What does the C1226 code mean?

C1226 is an OBD-II diagnostic trouble code that indicates: Lamp Brake Warning Output Circuit Short To Ground

What causes a C1226 error code?

The most common causes of C1226 include: Short circuit in wiring; Warning lamp fault; Problems with the control module; Wiring harness damage.

How do I fix a C1226 diagnostic trouble code?

To fix C1226: Check the integrity of the wiring of the lamp control circuit. Inspect and, if necessary, replace the warning lamp. Check the functionality of the control module. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with C1226?

Limited driving only, diagnose soon

How much does it cost to fix C1226?

The estimated repair cost for C1226 is $22–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat