Equus 3145 - Digital Ford Code Reader (1981 - 1995) Manual de usuario

FORD DIGITALCODE READER(Front Cover)

General InformationVEHICLES COVERED - TRUCKS/VANS7 Chapter 1Fuel Systems8th VIN (Carburetor ComputerEngine Digit** Model) Application/Special Notes Sy

General InformationPRELIMINARY VEHICLE DIAGNOSIS WORKSHEETChapter 1 8PRELIMINARY VEHICLE DIAGNOSIS WORKSHEETThe purpose of this form is to help you ga

General InformationPRELIMINARY VEHICLE DIAGNOSIS WORKSHEET9 Chapter 1WHEN DID YOU FIRST NOTICE THE PROBLEM:❑ Just Started❑ Started Last Week❑ Started

General InformationPRELIMINARY VEHICLE DIAGNOSIS WORKSHEETChapter 1 10AUTOMATIC TRANSMISSION PROBLEMS (if applicable)PROBLEM OCCURS❑ Morning ❑ Afterno

About Diagnostic SystemsWHAT ARE THE ADVANTAGES OF COMPUTER CONTROL SYSTEMS?11 Chapter 2WHAT ARE THE ADVANTAGES OF USING COMPUTERCONTROL SYSTEMS ON VE

About Diagnostic SystemsHOW DOES A COMPUTER SYSTEM WORK ON A VEHICLE?Chapter 2 12The on-board computer receives information (inputs) fromsensors and s

About Diagnostic SystemsHISTORY OF FORD’S EEC SYSTEMS13 Chapter 2•The computer also assigns a numeric code (OBD I systemsutilized a 2 or 3 digit code)

About Diagnostic SystemsFORD COMPUTER SYSTEM OVERVIEWChapter 2 141994: Ford introduces the EEC-V system (OBD-II). This is ahighly sophisticated syste

About Diagnostic SystemsFORD COMPUTER SYSTEM OVERVIEW15 Chapter 2IMPORTANT:When the computer is in Self Test mode (istesting the sensors or actuators

About Diagnostic SystemsChapter 2 162

Table of ContentsTitle Page No.YOU CAN DO IT! . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . iiCHAP

BEFORE YOU BEGIN•Fix any known mechanical problems before performingany test.Make a thorough check before starting any test procedure.Loose or damaged

About the Ford Code ReaderTEST CONNECTORSChapter 3 18b. Match battery terminals with battery connector contacts.c. Place batteries into battery compar

About the Ford Code ReaderFUNCTIONS OF THE FORD CODE READER19 Chapter 3 For the EEC-IV Computer System (most vehicles builtafter 1984) connect the Co

About the Ford Code ReaderFUNCTIONS OF THE FORD CODE READERChapter 3 20The vehicle's computer generates and assigns fault codeswhenever it detect

About the Ford Code ReaderFUNCTIONS OF THE FORD CODE READER21 Chapter 36. MEMORY Button - When pressed, displays on demand,one at a time, the retrieve

About the Ford Code ReaderFUNCTIONS OF THE FORD CODE READERChapter 3 224. "FLASHING" SQUARE Icon: This icon flashes when theCode Reader rece

Retrieving CodesOVERVIEW OF FAULT CODES23 Chapter 4OVERVIEW OF FAULT CODESIMPORTANT:Retrieving and utilizing Diagnostic TroubleCodes (DTC's) for

Retrieving CodesOVERVIEW OF FORD CODE RETRIEVAL PROCESSChapter 4 243. It records and retains in its memory (not applicable toMCU systems) a record of

Retrieving CodesKOEO TEST PROCEDURES (EEC-IV SYSTEMS)25 Chapter 4tests are designed to activate components and test theiroperation only with the Key O

Retrieving CodesKOEO TEST PROCEDURES (EEC-IV SYSTEMS)Chapter 4 263. With Code Reader off, connect to the vehicle's testconnectors (see page 18 fo

You Can Do It!ii1Plug It In•Ensure ignition is off. •Plug Code Reader into testconnector (test connector isusually found under thehood).2Read Fault Co

Retrieving CodesKOEO TEST PROCEDURES (EEC-IV SYSTEMS)27 Chapter 4WARNING:On some vehicles equipped with anElectric Cooling Fan, the computer activates

Retrieving CodesKOEO TEST PROCEDURES (EEC-IV SYSTEMS)Chapter 4 28 Code 10 is not a fault code. Code 10 is a “separationcode” used to separate the fir

Retrieving CodesKOEO TEST PROCEDURES (EEC-IV SYSTEMS)29 Chapter 414. If any KOEO Self Test Fault Codes were retrieved: Refer to page 46 for "Fau

Retrieving CodesENGINE TIMING CHECK (EEC-IV SYSTEMS)Chapter 4 30ENGINE TIMING CHECK (EEC-IV SYSTEMS)IMPORTANT:Before performing the KOER Self Test, th

Retrieving CodesENGINE TIMING CHECK (EEC-IV SYSTEMS)31 Chapter 45. Press and release the TEST/HOLD button to put theCode Reader in test mode. The vehi

Retrieving CodesKOER SELF TEST (EEC-IV SYSTEMS)Chapter 4 32 Turn the engine off and disconnect the Code Readerfrom the test connectors. Refer to the

Retrieving CodesKOER SELF TEST (EEC-IV SYSTEMS)33 Chapter 41. Warm up the vehicle to normal operating temperature. Start the engine, increase engine

Retrieving CodesKOER SELF TEST (EEC-IV SYSTEMS)Chapter 4 34NOTE: If code 98 or 998 dis-plays instead of a cylinder IDcode, the vehicle is operating i

Retrieving CodesKOER SELF TEST (EEC-IV SYSTEMS)35 Chapter 4 Code 10 is not a fault code.The vehicle's computer usescode 10 to signal the CodeRea

Retrieving CodesKOER SELF TEST (EEC-IV SYSTEMS)Chapter 4 3613. To view codes stored in the Code Reader's memory, pressthe ON/OFF button to turn t

General InformationSAFETY PRECAUTIONS1 Chapter 1SAFETY PRECAUTIONSTo avoid personal injury, instrument damage and/ordamage to equipment under test; do

Retrieving CodesERASING CODES FROM EEC-IV SYSTEMS37 Chapter 4ERASING CODES FROM EEC-IV SYSTEMSIMPORTANT:Continuous Memory Codes are the only ones that

Retrieving CodesADDITIONAL TESTS FOR EEC-IV SYSTEMSChapter 4 38NOTE:As soon as the TEST/HOLD button is pressedthe vehicle's computer enters the S

Retrieving CodesADDITIONAL TESTS FOR EEC-IV SYSTEMS39 Chapter 4Relay and Solenoid Test (Output State Check)The "Output State Check " is a sp

Retrieving CodesADDITIONAL TESTS FOR EEC-IV SYSTEMSChapter 4 40 The vehicle’s computer sends a voltage output signalor a ground signal to energize th

Retrieving CodesADDITIONAL TESTS FOR EEC-IV SYSTEMS41 Chapter 4Cylinder Balance Test Procedure•Always observe safety precautions before and duringtest

Retrieving CodesADDITIONAL TESTS FOR EEC-IV SYSTEMSChapter 4 42 The computer is now in Cylinder Balance Test Mode,and will start cutting fuel to each

Retrieving CodesADDITIONAL TESTS FOR EEC-IV SYSTEMS43 Chapter 4 The Cylinder Balance Test can be repeated bypressing and releasing accelerator pedal

Retrieving CodesADDITIONAL TESTS FOR EEC-IV SYSTEMSChapter 4 44B: If a cylinder problem code (Code 20 in example B in TESTRESULTS CHART) is retrieved

Retrieving CodesADDITIONAL TESTS FOR EEC-IV SYSTEMS45 Chapter 4NOTE:After the Cylinder Balance Test is done, the KOERTest Fault Codes will be saved in

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (11 - 15)Chapter 4 46 For 1986 and older vehicles: Wiggle test is nowactive. Proceed to ste

General InformationHOW TO USE THIS MANUALChapter 1 2h. The vehicle’s battery produces highly flammable hydrogengas. To prevent an explosion, keep all

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (15 - 24)47 Chapter 4TESTCODE CONDITION FAULT CODE DEFINITION15 C Power Interruption to comp

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (25 - 33)Chapter 4 48TESTCODE CONDITION FAULT CODE DEFINITION25 R Knock not sensed during Dy

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (34 - 42)49 Chapter 4TESTCODE CONDITION FAULT CODE DEFINITION34 R (Cars ONLY): EGR valve no

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (42 - 55)Chapter 4 50TESTCODE CONDITION FAULT CODE DEFINITION42 C No O2S switching detected4

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (55 - 62)51 Chapter 4TESTCODE CONDITION FAULT CODE DEFINITION55 R (Trucks ONLY): Charging s

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (63 - 68)Chapter 4 52TESTCODE CONDITION FAULT CODE DEFINITION63 O, C Throttle Position (TP)

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (68 - 79)53 Chapter 4TESTCODE CONDITION FAULT CODE DEFINITION68 O (Trucks ONLY): Idle track

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (79 - 89)Chapter 4 54TESTCODE CONDITION FAULT CODE DEFINITION79 - (Trucks ONLY): Air condit

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (89 - 112)55 Chapter 4TESTCODE CONDITION FAULT CODE DEFINITION89 O Exhaust heat control91 O

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (112 - 138)Chapter 4 56TESTCODE CONDITION FAULT CODE DEFINITION112 O, C (Trucks ONLY): Air

General InformationVEHICLE SERVICE MANUALS3 Chapter 1•Attempt to fix the problem yourself: If you choose tofix the problem yourself, read and follow a

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (139 - 181)57 Chapter 4TESTCODE CONDITION FAULT CODE DEFINITION139 C (Cars ONLY): HEGO (HO2

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (181 - 216)Chapter 4 58TESTCODE CONDITION FAULT CODE DEFINITION181 C (Trucks ONLY): HEGO (H

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (217 - 311)59 Chapter 4TESTCODE CONDITION FAULT CODE DEFINITION217 C DIS fault ignition syst

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (312 - 416)Chapter 4 60TESTCODE CONDITION FAULT CODE DEFINITION312 R Thermactor air system/f

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (452 - 533)61 Chapter 4TESTCODE CONDITION FAULT CODE DEFINITION452 R (Cars ONLY): Vehicle S

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (536 - 568)Chapter 4 62TESTCODE CONDITION FAULT CODE DEFINITION536 R, C Brake On/Off (BOO) c

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (569 - 631)63 Chapter 4TESTCODE CONDITION FAULT CODE DEFINITION569 O (Trucks ONLY): Auxilia

Retrieving CodesFAULT CODE DEFINITIONS FOR EEC-IV SYSTEMS (632 - 655)Chapter 4 64TESTCODE CONDITION FAULT CODE DEFINITION632 R Overdrive Transmission

Retrieving CodesRETRIEVING FAULT CODES FROM MCU SYSTEMSRETRIEVING FAULT CODES FROM MCU SYSTEMSPreliminary ProceduresThe following "Preliminary Pr

Retrieving CodesKOEO SELF TEST (MCU SYSTEMS)Chapter 4 66 In-Line 4 and In-Line 6 with canister controlvalve: Remove hose from connector port B. Recon

General InformationVEHICLES COVERED - CARSChapter 1 4VEHICLES COVEREDCAR- Ford, Lincoln, Mercury Computer System/Code Reader Application TableThe foll

Retrieving CodesKOEO SELF TEST (MCU SYSTEMS)67 Chapter 44. Press and release the ON/OFFbutton to turn the Code Reader"ON". Three zeros shou

Retrieving CodesKOER SELF TEST (MCU SYSTEMS)Chapter 4 68NOTE:All retrieved codes will stay in the Code Reader'smemory and will only clear from th

Retrieving CodesKOER SELF TEST (MCU SYSTEMS)69 Chapter 4NOTE: For vehicles with 2.3L HSC (High Swirl Combustion)engines: Locate vacuum tee and restri

Retrieving CodesKOER SELF TEST (MCU SYSTEMS)Chapter 4 70 The first code displayed by the Code Reader is theCylinder Identification (ID) Code. The cyl

Retrieving CodesFAULT CODE DEFINITIONS FOR MCU SYSTEMS (11 - 45)71 Chapter 4 Refer to page 72 for "Fault Code Definitions for MCUSystems".

Retrieving CodesFAULT CODE DEFINITION FOR MCU SYSTEMS (46 - 64)Chapter 4 72CODE FAULT CODE DEFINITION46 All Engines: Thermactor Air System unable to

Retrieving CodesFAULT CODE DEFINITION FOR MCU SYSTEMS (65 - 66)73 Chapter 4CODE FAULT CODE DEFINITION65NOTE:"High Altitude" refers to vehicl

Retrieving CodesChapter 4 744

TroubleshootingCODE READER TROUBLESHOOTING GUIDE75 Chapter 5CODE READER TROUBLESHOOTING GUIDEIf all procedures are followed and the Code Reader will n

TroubleshootingCODE READER TROUBLESHOOTING GUIDEChapter 5 76MCU Systems (Most 1981-84 vehicles)The 6-pin MCU Test Connectorsfor some vehicle models a

General InformationVEHICLES COVERED - CARS5 Chapter 1Fuel Systems8th VIN (Carburetor ComputerEngine Digit** Model) Application/Special Notes System198

GlossaryINTRODUCTION77 Chapter 6INTRODUCTIONThe Society of Automotive Engineers has issued a Standard(SAE J1930) for Electrical/Electronic Systems Dia

GlossaryGLOSSARY OF TERMS AND ABBRREVIATIONSChapter 6 78BASE IDLE – Idle RPM when the throttle lever rests on thethrottle stop and the Idle Speed Cont

GlossaryGLOSSARY OF TERMS AND ABBRREVIATIONS79 Chapter 6CKT – Circuit.CL – Closed Loop.CLC – Converter Lock-up Clutch.CO – Carbon Monoxide.COC – Conve

GlossaryGLOSSARY OF TERMS AND ABBRREVIATIONSChapter 6 80DV TW – Delay Valve, 2 Way.DVM (10 MEG) – Digital voltmeter with a minimum of 10million ohms r

GlossaryGLOSSARY OF TERMS AND ABBRREVIATIONS81 Chapter 6ELECTRONIC SPARK TIMING – PCM controlled timing ofthe ignition spark.EMR – Electronic Module R

GlossaryGLOSSARY OF TERMS AND ABBRREVIATIONSChapter 6 82GND, GRD or GRND – Ground. Common line leading to thenegative side of the battery.HALL EFFECT

GlossaryGLOSSARY OF TERMS AND ABBRREVIATIONS83 Chapter 6KAPWR – Keep Alive Power, used to power KAM circuit ofthe processor.KNOCK SENSOR (KS) – Input

GlossaryGLOSSARY OF TERMS AND ABBRREVIATIONSChapter 6 84OHC – Overhead CamOXYGEN SENSOR – Sensor that changes its voltage outputas exhaust gas oxygen

GlossaryGLOSSARY OF TERMS AND ABBRREVIATIONS85 Chapter 6SCC – Spark Control Computer.SEFI – Sequential Electronic Fuel Injection. Injectors locatedin

GlossaryGLOSSARY OF TERMS AND ABBRREVIATIONSChapter 6 86THERMACTOR AIR BYPASS SOLENOID – Solenoidswitches engine manifold vacuum. Vacuum reacts onther

General InformationVEHICLES COVERED - TRUCKS/VANSChapter 1 6TRUCKS/VANS - Ford Computer System Code ReaderApplication TableThe following table is appl

GlossaryGLOSSARY OF TERMS AND ABBRREVIATIONS87 Chapter 6VM – Vane Meter or air flow meter.VSS – Vehicle Speed Sensor.WOT – Wide Open Throttle or Wide

GlossaryChapter 6 886

Warranty and ServiceLIMITED ONE YEAR WARRANTY89 Chapter 7LIMITED ONE YEAR WARRANTYThe Manufacturer warrants to the original purchaser that thisunit is

Warranty and ServiceChapter 7 90

Notes

Notes

FORD DIGITALCODE READER(Back Cover)