Equus 3040 - OBD2 ScanTool Manuel d'utilisateur

11231 Young River Ave.Fountain Valley, CA 92708Printed in ChinaInstruction MRPCopyright © 2010 IEC. All Rights Reserved.#93-0257®

Onboard Diagnostics COMPUTER ENGINE CONTROLS 8 OBD2 The Basic Engine Computer Control System The on-board computer is the heart of the Comp

Onboard Diagnostics COMPUTER ENGINE CONTROLS OBD2 9 Vehicle operating conditions are constantly changing. The computer continuously makes

Onboard Diagnostics COMPUTER ENGINE CONTROLS 10 OBD2  Because OBD1 systems only detect failed components, the degraded components were no

Onboard Diagnostics COMPUTER ENGINE CONTROLS OBD2 11  Powertrain Control Module (PCM) - The PCM is the OBD2 accepted term for the vehicl

Onboard Diagnostics DIAGNOSTIC TROUBLE CODES (DTCs) 12 OBD2  OBD2 Drive Cycle - An OBD2 Drive Cycle is an extended set of driving procedu

Onboard Diagnostics DIAGNOSTIC TROUBLE CODES (DTCs) OBD2 13 Generic DTCs are codes that are used by all vehicle manu-facturers. The standa

Onboard Diagnostics DIAGNOSTIC TROUBLE CODES (DTCs) 14 OBD2 DTCs and MIL Status When the vehicle’s on-board computer detects a failure in a

Onboard Diagnostics OBD2 MONITORS OBD2 15  If the conditions that caused the MIL to light are no longer present for the next three trips

Onboard Diagnostics OBD2 MONITORS 16 OBD2 Non-Continuous Monitors The other twelve Monitors are “non-continuous” Monitors. “Non-continuous”

Onboard Diagnostics OBD2 MONITORS OBD2 17 Fuel System Monitor - This Monitor uses a Fuel System Correction program, called Fuel Trim, insi

Table of Contents i OBD2 YOU CAN DO IT! ... 1 SAFETY PRECAUTIONS

Onboard Diagnostics OBD2 MONITORS 18 OBD2 of) the converter. If the catalytic converter loses its ability to store oxygen, the downstream s

Onboard Diagnostics OBD2 MONITORS OBD2 19 solenoid (depending on solenoid design). The purge solenoid opens a valve to allow engine vacuum

Onboard Diagnostics OBD2 MONITORS 20 OBD2 functions when the computer is in closed-loop. A properly operating oxygen sensor reacts quickly

Onboard Diagnostics OBD2 MONITORS OBD2 21 NOx Aftertreatment Monitor - NOx aftertreatment is based on a catalytic converter support that h

Onboard Diagnostics OBD2 MONITORS 22 OBD2 PM Filter Monitor - The particulate matter (PM) filter removes particulate matter from the exhaus

Onboard Diagnostics OBD2 MONITORS OBD2 23 Name of Monitor A B C D E F Comprehensive Component Monitor Continuous 1 2 1 3 40 Misfi

Preparation for Testing BEFORE YOU BEGIN - VEHICLE SERVICE MANUALS 24 OBD2 BEFORE YOU BEGIN Fix any known mechanical problems before perfor

Using the Scan Tool CODE RETRIEVAL PROCEDURE OBD2 25 CODE RETRIEVAL PROCEDURE Never replace a part based only on the DTC definition. Each DT

Using the Scan Tool CODE RETRIEVAL PROCEDURE 26 OBD2 6. The Scan Tool will automatically start a check of the vehicle’s computer to determine

Using the Scan Tool CODE RETRIEVAL PROCEDURE OBD2 27 8. To read the display: Refer to DISPLAY FUNCTIONS on page 5 for a description of disp

You Can Do It! EASY TO USE - EASY TO VIEW - EASY TO DEFINE OBD2 1 Easy To Use . . . .  Connect the Scan Tool to the vehicle’s test conn

Using the Scan Tool CODE RETRIEVAL PROCEDURE 28 OBD2  Yellow LED - Indicates one of the following conditions: PENDING CODE PRESENT - If th

Using the Scan Tool CODE RETRIEVAL PROCEDURE OBD2 29 - If the correct manufacturer is shown, press the LD/ENTER button to continue. - If t

Using the Scan Tool ERASING DIAGNOSTIC TROUBLE CODES (DTCs) 30 OBD2 12. Determine engine system(s) condition by viewing the Scan Tool’s dis

Using the Scan Tool ERASING DIAGNOSTIC TROUBLE CODES (DTCs) OBD2 31 The ERASE button is active only when the Scan Tool is in DTC displa

Live Data Mode VIEWING LIVE DATA 32 OBD2 The Scan Tool is a special tool that communicates with the vehicle's computer. The Scan Tool let

Live Data Mode CUSTOMIZING LIVE DATA OBD2 33  If communication with the vehicle is lost while viewing Live Data, a “Communication Lost&

Live Data Mode CUSTOMIZING LIVE DATA 34 OBD2  To deselect a currently selected PID, highlight the PID, then press the LD/ENTER button. The

Additional Functions VIEWING VEHICLE INFORMATION OBD2 35 VIEWING VEHICLE INFORMATION The Scan Tool offers three options for retrieving ref

Additional Functions VIEWING VEHICLE INFORMATION 36 OBD2 Viewing Available Modules The Scan Tool can retrieve a list of modules supported by t

Additional Functions O2 SENSOR TEST OBD2 37  Use the DOWN button to highlight IPT, then press the LD/ENTER button.  A “One moment p

Safety Precautions SAFETY FIRST 2 OBD2 SAFETY FIRST! This manual describes common test procedures used by experienced service technicians.

Additional Functions ADJUSTMENTS AND SETTINGS 38 OBD2 For example, O2S12 or O2SB1S2 is the designation for the downstream O2 sensor for cylind

Additional Functions ADJUSTMENTS AND SETTINGS OBD2 39  Adjust Brightness: Adjusts the brightness of the display screen.  Audible Tone

Additional Functions ADJUSTMENTS AND SETTINGS 40 OBD2 2. Press the DOWN button to increase the brightness of the display (make the display

Generic (Global) OBD2 PID List OBD2 41 The following is a list of Generic (Global) PIDs and their descriptions. Tool Display Unit Value

Generic (Global) OBD2 PID List 42 OBD2 Tool Display Unit Value PID Description EQ Ratio 14 - X.XXX Bank 1 - Sensor 4 Equivalence Ratio EQ

Generic (Global) OBD2 PID List OBD2 43 Tool Display Unit Value PID Description O2S B1 S1 mA mA X.XXX Bank 1 - Sensor 1 O2S Current O2S

Generic (Global) OBD2 PID List 44 OBD2 Tool Display Unit Value PID Description O2S Location - O2S42 Oxygen Sensor, Bank 4, Sensor 2 OBD Su

Generic (Global) OBD2 PID List OBD2 45 Tool Display Unit Value PID Description Veh Speed km/h / mph XXX / XXX Vehicle Speed Sensor War

Notes 46 OBD2

Notes OBD2 47

About the Scan Tool VEHICLES COVERED OBD2 3 VEHICLE EMISSION CONTROL INFORMATIONVEHICLEMANUFACTUREROBD IICERTIFIEDENGINE FAMILY E

Notes 48 OBD2

Warranty and Servicing OBD2 49 LIMITED ONE YEAR WARRANTY The Manufacturer warrants to the original purchaser that this unit is free of d

11231 Young River Ave.Fountain Valley, CA 92708Printed in ChinaInstruction MRPCopyright © 2010 IEC. All Rights Reserved.#93-0257®

About the Scan Tool CONTROLS AND INDICATORS 4 OBD2 CONTROLS AND INDICATORS Figure 1. Controls and Indicators See Figure 1 for the locations

About the Scan Tool DISPLAY FUNCTIONS OBD2 5 5. GREEN LED - Indicates that all engine systems are running normally (all Monitors on the

About the Scan Tool DISPLAY FUNCTIONS 6 OBD2 4. DTC Display Area - Displays the Diagnostic Trouble Code (DTC) number and definition. Each

Onboard Diagnostics COMPUTER ENGINE CONTROLS OBD2 7 COMPUTER ENGINE CONTROLS The Introduction of Electronic Engine Controls As a result o