OBD Guide
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B12CB

Start/Stop Eco-Start Enable Button Circuit Short To Ground

B12CB is an OBD-II diagnostic trouble code meaning: Start/Stop Eco-Start Enable Button Circuit Short To Ground. Common causes: wiring harness damage, eco-start button malfunction. Estimated repair cost: $33–111.

Severity
⚠️ Medium
Can you drive?
Limited driving only, diagnose soon
Approx. repair cost
$33–111 (est.)

Symptoms

  • Eco-Start function does not work
  • Start/Stop system does not activate
  • Check Engine light comes on

Causes

  • Wiring harness damage
  • Eco-Start button malfunction
  • Grounding problems
  • Short circuit in the circuit

How to Fix

  1. Check wiring harness for damage
  2. Check the Eco-Start button for functionality
  3. Check circuit grounding
  4. Eliminate short circuit Administrador
  5. Flash the ECU if necessary

Related codes

B12CCB12CDB12CE

FAQ

What does the B12CB code mean?

B12CB is an OBD-II diagnostic trouble code that indicates: Start/Stop Eco-Start Enable Button Circuit Short To Ground

What causes a B12CB error code?

The most common causes of B12CB include: Wiring harness damage; Eco-Start button malfunction; Grounding problems; Short circuit in the circuit.

How do I fix a B12CB diagnostic trouble code?

To fix B12CB: Check wiring harness for damage. Check the Eco-Start button for functionality. Check circuit grounding. For a complete diagnosis, use an OBD-II scanner.

Is it safe to drive with B12CB?

Limited driving only, diagnose soon

How much does it cost to fix B12CB?

The estimated repair cost for B12CB is $33–111. Actual cost depends on your vehicle, location, and labor rates.

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See also: Russian version · NationStat