Ford Integrated Diagnostic System (IDS):
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   VCM, VMM Hardware & Usage

Hardware Overview
The Vehicle Communication Module (VCM) communicates with all Ford vehicles via the 16-pin diagnostic link. The VCM has been discontinued and is no longer available for purchase. The VCM II is the direct replacement for the VCM.
The Vehicle Communication Module II (VCM II) communicates with all Ford/Lincoln vehicles via the 16-pin diagnostic link. The VCM II is the direct replacement for the VCM.
The Vehicle Measurement Module (VMM) handles electronic and transducer based measurements. The VMM connected to a laptop offers the following functionality:
  • Ignition System Test
  • Injector Flow Test
  • Fuel Pressure Test
  • Secondary Ignition
  • Fuel Leak-down Test
  • Current Probe Functionality
  • Oscilloscope
  • Digital Multi-Meter

    Hardware Functionality
    Use the functionality chart below to determine what hardware should be purchased. IDS is a modular system composed of software and hardware. Use your business needs and budget to determine what pieces are needed.

    Diagnostic Functionality

    (VCM + Laptop + VMM)
    (VCM II + Laptop + VMM)


    VCM I Required


    VCM II Required


    VMM Required

    Self test      
       Retrieve CMDTC's

       KOEO (Key-On-Engine-Off)

       KOER (Key-On-Engine-Running)

    Data logger      




       Pressure/Vacuum Tests


    Network Test

    Module Programming      
       Programmable Module Installation

       Module Reprogramming

       Programmable Parameters

    Body Tools      
       PATS Functions
    *See Note Below

       Remote Keyless Entry

       Factory Keyless Entry Code


    Chassis Tools      
       Bleed anti-lock brakes

       IVD Initialization Sequence  

       Ride Height Calibration

       Pneumatic Test

       Accurate Trim Test

    Electrical Tools      
       Charging System Test

       Parking Aid Switch Test


    Powertrain Tools      
       EVAP Test

       Fuel Economy Test

       Fuel System Test/RelativeInjector Flow Test
       (VCM and VMM modules are required on some vehicles)

       Ignition System Test

       Spark Duration PIDs

       Power Balance Test

       Relative Compression Test

       Transmission Test
       (IDS - Some vehicles require only VCM)

       Engine Checks and OBD Tests
    (Drive Cycle, Mode 01, Mode 06 & Mode 09)

       EGR Test

       Other Powertrain tests & functions

    Digital Multimeter      
       Basic DMM functions
    (Volts, resistance, frequency)

       Current measurements (50 Amps/500 Amps)    

       Pressure/Vacuum measurements with PVT    

    Oscilloscope Tools      

       Alternator ripple    

       COP (Coil-On-Plug) stress test    

    Signal Generator Monitor (SGM)

    Vehicle Data Recorder (VDR)

    Customer Flight Recorder (CFR)



    • Current measurement and current probes are new for IDS
    • IDS uses a new, digital PVT, which has a built-in microprocessor
    • The CFR requires the VCM II, a pendant cable and a USB power cable to work with IDS
    • On certain vehicles that also require the use of a VMM, the IDS Fuel System Test/Relative Injector Flow Test requires a new optional diagnostic cable, called a "16-way adapter", Part No. 164-R9537

    *Note: Starting in model year 2013, certain vehicles are equipped with Coded PATS vs. time delay feature. For these vehicles, if you are required to perform functions such as Keycode Erase/Reprogram and PCM Parameter Reset, this functionality is only available to automotive security professionals that are registered with the National Automotive Service Task Force (NASTF) Vehicle Security Professionals Registry.
    NON-DEALERS ONLY: To register with NASTF, please visit

    Rotunda Kits

    Click Here to view information for Rotunda Kits..

    VMM Kit Contents

    VCM Kit Contents (No longer available to purchase)

    VCM II Kit Contents

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