This guide covers PCM replacement procedures for Ford vehicles equipped with PATS (Passive Anti-Theft System). Follow the specific procedure for your PATS type.
Essential Tool: A scan tool with Parameter Reset function, or a J2534 scan tool is required to perform the reset. The tool and software used will give specific instructions to follow.
⚠️ Important
Security Access Time: The security access process takes 10 minutes. Do not interrupt this process.
📋 Step-by-Step Procedure
Cycle key to RUN position
Turn the ignition key to the RUN position (do not start the engine)
Enter Security Access on the PATS control function module:
Type B: PATS module
Type C: Instrument Cluster
Type F: PCM
Type G: Instrument Cluster Module
This process takes 10 minutes - do not interrupt
Select "Parameter Reset"
After security access is complete, select Parameter Reset and exit Security Access
Perform PCM Keep Alive Memory (KAM) reset
Select and execute the KAM reset function
Start vehicle
Turn the key to start the engine - the vehicle should start normally
Simple Key Cycle Procedure - No Scan Tool Required
Simple 3-Step Process
Great News! Type E PATS vehicles can be reset with a simple key cycle procedure. No scan tool is required for this PATS type.
📋 Quick Reset Procedure
Cycle key 1:
Turn key to OFF position, then turn to RUN and keep for 3 seconds, then back to OFF
Cycle key 2:
Turn key to RUN position and keep for 3 seconds, then turn to OFF
Start vehicle
Turn the key to start the engine - the vehicle should start normally
⏱️ Timing is Important
Follow the 3-second timing precisely for each key cycle. Keep the key in the RUN position for exactly 3 seconds before turning it OFF.
Important Notes
🔍 PATS Type Identification
Critical: Make sure to identify your vehicle's PATS type correctly before proceeding with the reset procedure. Each type requires different module access points and procedures.
⏱️ Timing Requirements
Precision Matters: Follow the timing requirements precisely, especially for the 10-minute security access period (Types B, C, F, G) and the 3-second key cycles (Type E).
🛠️ Scan Tool Requirements
Types B, C, F, G: A scan tool with Parameter Reset function or J2534 compatibility is required. Type E does not require a scan tool.
