Ford Fiesta PATS Disable / Reset Service

If your Ford Fiesta will not start after a PCM/ECU replacement, the Passive Anti-Theft System (PATS) may be the cause. Our PATS disable and reset service permanently removes the immobilizer requirement from your PCM, allowing your Fiesta to start and run without needing programmed keys or a matched PATS module.

What MoPower Can Offer

• Permanently remove PATS security from your Ford Fiesta PCM
• VIN rewritten back into the PCM for a seamless factory match
• Eliminates no-start conditions after PCM replacement or swap
• Plug-and-play PCM install – no dealer key programming required

How PATS Works

Ford PCMs often include built-in PATS security, even if the vehicle was not originally equipped. Once a PCM has been “married” to a PATS module, it will always expect the immobilizer handshake before starting. Our PATS reset service clears this lock, restoring normal plug-and-play operation.

• Donor PCMs from PATS-equipped vehicles can trigger no-start issues
• PATS-cleared PCMs start with both security and non-security keys
• Compatible with Ford Fiesta model years 1999 and newer

Security Light Woes

After PATS delete, the security light may stay illuminated on some Ford Fiesta dashboards. If this occurs, the only solution is to remove the bulb or LED from the cluster.

Plug-and-Play Installation

Most customers can install a PATS-cleared PCM with no additional programming. In rare cases, a global DTC clear may be required before the Fiesta will start.

Service Details

• You must ship your ECU/PCM to MoPower Calibrations
• We only charge return shipping — customer covers shipping to us
• Turnaround time: 2–3 business days after receiving your PCM
• Please include your Full Name, Return Address, and VIN number with your ECU