Replace your failed engine computer with an OEM 2008 Ford Focus 2.0L PCM (also called an ECM or ECU), programmed to your vehicle before it ships.

This module is a direct replacement for units carrying service number 8S4A-12A650-ARC and hardware codes 8S4A-12B684-AA / AB / AC / CA. Every unit is refurbished, bench-tested against OEM specification, and flashed with the latest manufacturer software updates.

Also replaces service numbers: 8S4A-12A650-ASC, 8S4A-12A650-AKA, 8U7A-12A650-EGC

What you receive

• Programmed to your VIN before dispatch, so it installs plug and play
• Bench-tested by our technicians before it leaves us
• Lifetime warranty for as long as you own the vehicle
• Free US shipping, typically delivered in 2-4 business days
• No core charge – keep your old unit

Common symptoms of a failed Ford Focus PCM

• Engine cranks but will not start
• Misfire codes that stay on one cylinder after replacing that coil
• Module codes P0601, P0603, P0605 or P0606
• Intermittent stalling or rough idle
• No communication with a scan tool

Important: replace the coils too

A shorted ignition coil is the usual cause of a damaged coil-driver circuit inside the module. If a failed coil took out your PCM, replace all coils and spark plugs at the same time, or the replacement can fail the same way.

Note on PATS anti-theft

Ford vehicles use PATS. Depending on model and year a key relearn may be needed after installation. We will tell you before shipping whether yours requires it.

Before you order

Enter your 17-character VIN at checkout so we can match the module to your exact vehicle. If unsure, call 516-494-7838 and a technician will confirm fitment.

Optional: PATS disable service

If your keys are lost, your PATS transceiver ring has failed, or the vehicle runs off road or without the factory immobiliser wired in, we can disable PATS inside this module before it ships. The service is 135 dollars and adds two business days to the turnaround.

Most customers do not need it. With working keys we simply programme the module to your VIN at no extra cost and your existing keys keep working. Add the PATS disable service to your basket alongside this module if you want it, or call 516-494-7838 and we will tell you honestly whether it applies to you.