Engine-Codes - Generic - B12CB

B12CB Code - Start/Stop Eco-Start Enable Button Circuit Short To Ground

- Code Popularity: 1,463 Views
- Repair Importance Level: 3/3
- Repair Difficulty Level: 3/3
Table of contents

|What are the Possible Causes of the Code B12CB?

  • Faulty Start/Stop Button
  • Start/Stop Button harness is open or shorted
  • Start/Stop Button circuit poor electrical connection

|How to Fix the B12CB Code?

Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.

|What is the Cost to Diagnose the Code B12CB?

Labor: 1.0

The cost to diagnose the B12CB code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.

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|What are Code B12CB Possible Symptoms?

  • Engine Light ON (or Service Engine Soon Warning Light)

|What Does the B12CB Code Mean?

The stop-start disable button is a momentary contact switch. It is normally open, Controlled Area Network (CAN) signal low. Closed (button being pushed) is CAN signal high. The Front Controls Interface Module reads the switch status and sends it over CAN to the Powertrain Control Module (PCM). If the button is stuck open, there are no low to high transitions. Since the PCM does not recognize a button push, stop-start will not be disabled if requested by the customer. If the button is stuck closed, there are no low to high transitions. Since the PCM does not recognize a button push, stop-start will not be disabled if requested by the customer.

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

|Need more Information on the B12CB Code?

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|Code B12CB Information for Specific Makes

  • B12CB Ford Start/Stop Eco-Start Enable Button Circuit Short To Ground
  • B12CB Lincoln Start/Stop Eco-Start Enable Button Circuit Short To Ground
  • B12CB Mercury Start/Stop Eco-Start Enable Button Circuit Short To Ground

|Need Help with the B12CB Code?

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