Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Component Description
2012 Ford Focus L4-2.0LSECTION Component Description
Starting System - with Intelligent Access (IA)
Component Description
Body Control Module (BCM)
REFER to Body Control Module (BCM) .
Intelligent Access (IA) Key
REFER to Integrated Keyhead Transmitter (IKT).
Start-Stop Switch
The start/stop switch is a momentary contact switch that is hardwired to the BCM (Body Control Module), PCM (Powertrain Control Module) and RFA (Remote Function Actuator) module. The start/stop switch is used to obtain the OFF, ON or START ignition modes.
Remote Function Actuator (RFA) Module
REFER to Remote Function Actuator (RFA) .
Powertrain Control Module (PCM)
The PCM (Powertrain Control Module) controls the starter relay power and ground to initiate cranking of the engine.
RENDER: 1.0x
NO RELATED
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.