Engine-Codes - Generic - B12C5

B12C5 Code - Engine Start/Stop Switch Failure

Repair Importance Level: 3/3
Repair Difficulty Level: 3/3  What is this?
Table of contents

|B12C5 code possible causes

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

|How is the B12C5 code repair?

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 B12C5 code

Labor: 1.0

The cost to diagnose the B12C5 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.

|What are B12C5 code possible symptoms?

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

|What is B12C5 code meaning?

This Push Button Ignition Switch is a single pole momentary design with position indicator LEDs controlled by the Keyless access control unit.
Once the Keyless access control unit detects the presence of a registered key fob and the brake pedal is not depressed, each time the button is pushed the Body Control Module will cycle through Accessories, On and Off modes. The Body Control Module will also illuminate the appropriate position indicator LED.
If the brake pedal is depressed, the shift lever is in Park and the button is pushed, the Keyless access control unit will start the engine.

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|B12C5 code information for specific makes

|Need help with a B12C5 code?

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