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FORD CODE READER




                 INNOVA                      3143




                 AUDIO
                  ON      FORD             TEST



                            CODE
                  OFF      READER          HOLD
                           E C M  A B S




                  FORD  LINCOLN  MERCURY
                 Domestic vehicles  1981 to 1995




          FOR FORD, LINCOLN, MERCURY
       DOMESTIC VEHICLES FROM 1981 TO 1995




Ford                                                Innova 1998
Table of Contents
Paragraph                         Title                            Page No.

          YOU CAN DO IT!............................................................   ii
          GENERAL INFORMATION
    1.1   YOUR VEHICLE'S COMPUTER SYSTEMS ................ 1-1
    1.2   ABOUT YOUR CODE READER.................................... 1-1
    1.3   SAFETY PRECAUTIONS .............................................. 1-3
    1.4   VEHICLE SERVICE MANUALS .................................. 1-4
    1.5   PRELIMINARY VEHICLE DIAGNOSIS ..................... 1.5
          WORKSHEET
    1.6   DIAGNOSTIC ROUTINE CHECKLIST........................ 1-8
          ECM
    2.1  VEHICLES COVERED .................................................. 2-1
    2.2  TEST CONNECTORS LOCATION ............................... 2-2
    2.3  OPTIONAL EXTENSION CABLE ................................ 2-4
    2.4  BEFORE YOU BEGIN .................................................. 2-5
         EEC-IV SYSTEMS
    2.5 RETRIEVING FAULT CODES FOR ............................ 2-5
         EEC-IV SYSTEMS
    2.6 ADDITIONAL TESTS FOR EEC-IV SYSTEMS...............2-12
    2.7 ERASING "CONTINUOUS MEMORY" ........................2-17
         CODES FOR EEC-IV SYSTEMS
    2.8 FAULT CODE DEFINITIONS FOR..............................2-17
         EEC-IV SYSTEMS / CAR & TRUCK)
    2.9 RETRIEVING FAULT CODES FOR ............................2-33
         MCU SYSTEMS
    2.10 FAULT CODE DEFINITIONS FOR MCU....................2-37
         SYSTEMS / CAR & TRUCK
          ABS
    3.1   VEHICLES COVERED .................................................. 3-1
    3.2   TEST CONNECTOR LOCATION.................................. 3-1
    3.3   RETRIEVING ABS FAULT CODES ............................. 3-2
    3.4   ERASING ABS CODES.................................................. 3-3
    3.5   ABS FAULT CODE DEFINITIONS .............................. 3-3
          GLOSSARY
    4.1   INTRODUCTION ........................................................... 4-1
    4.2   GLOSSARY OF TERMS AND ...................................... 4-1
          ABBREVIATIONS
          WARRANTY AND SERVICE
    5.1   LIMITED ONE YEAR WARRANTY.............................. 5-1
    5.2   SERVICE PROCEDURES.............................................. 5-1




i                                                                                 Ford
1
1.1 YOUR VEHICLE'S COMPUTER SYSTEMS
      Today's vehicles are equipped with computer systems which
      help control the vehicle's operation and performance. The
      Powertrain Control Module, also called the Engine Control
      Module (ECM), Engine Control Unit (ECU) or Engine Control
      Computer (ECC) helps control the engine's operation and
      increase overall performance. Typical control includes fuel
      delivery, idle speed control, spark timing, and emission
      systems. The Electronic Brake Control Module (EBCM)
      controls the vehicle's Anti-Lock Brake System (ABS).
      In addition to controlling operation of the associated vehicle
      systems, the computers are equipped with self-diagnostic
      programming. When a fault is detected, the computer stores
      this information in it's memory as a fault code.

1.1.1 Fault Codes

      The fault codes are also called "diagnostic codes" or "trouble
      codes". These codes can be used to identify systems or
      components which are malfunctioning.
      The computer records codes for two types of problems:
      s   "Hard" Codes. "Hard" codes are stored for problems
          which are present at the time of testing.
      s   "Intermittent" Codes or "Continuous Memory"
          Codes. "Intermittent" codes are stored for problems which
          happened in the past but are not currently present at the
          time of testing. "Intermittent" codes stay in the computer's
          memory even when the problem is no longer present.

1.2 ABOUT YOUR CODE READER
      The Code Reader is a tool which allows you to retrieve these
      fault codes from the computer's memory. The Code Reader will
      not damage the vehicle's computer systems.




1-1                                                             Ford
                      General Information
1.2.1 Controls and Indicators




                 1


                           INNOVA                      3143




                 2         AUDIO
                                                              3
                            ON      FORD             TEST



                                      CODE
                            OFF      READER          HOLD
                                     E C M  A B S




                            FORD  LINCOLN  MERCURY
                           Domestic vehicles  1981 to 1995




       1.   LED Indicator  Blinks on/off to give you service codes
            from the vehicle's onboard computers.
       2.   AUDIO ON/OFF Switch  Turns audio indicator on and
            off. Useful when the LED indicator cannot be seen.
                                                                  AUDIO
            s   ON  A tone sounds                                 ON
                whenever the LED indicator
                lights.
            s   OFF  No tone.                                    OFF

       3.   TEST/HOLD Switch  Controls the vehicle's onboard
            computer Self-Test input ground loop.

                                                                  TEST
            s   TEST  Testing starts.
            s   HOLD  On hold, no
                testing.
                                                                  HOLD




Ford                                                                      1-2

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