Equus 3160 User Manual

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Table of Contents

INTRODUCTION

WHAT IS OBD?

YOU CAN DO IT! ............................................................................................ 2

SAFETY PRECAUTIONS

SAFETY FIRST!

ABOUT THE SCAN TOOL

VEHICLES COVERED

BATTERY REPLACEMENT ............................................................... 6

ADJUSTMENTS AND SETTINGS .................................................... 7

SCAN TOOL CONTROLS

CONTROLS AND INDICATORS

DISPLAY FUNCTIONS ........................................................................ 12

ONBOARD DIAGNOSTICS

DIAGNOSTIC TROUBLE CODES (DTCs)

PREPARATION FOR TESTING

PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET

BEFORE YOU BEGIN ......................................................................... 20

VEHICLE SERVICE MANUALS ........................................................ 21

USING THE SCAN TOOL

CODE RETRIEVAL PROCEDURE

THE ENHANCED MAIN MENU ......................................................... 28

VIEWING ABS DTCs ............................................................................ 29

VIEWING ENHANCED DTCs ............................................................ 32

ERASING DIAGNOSTIC TROUBLE CODES (DTCs)................. 40

I/M READINESS TESTING ................................................................ 41

LIVE DATA MODE

VIEWING LIVE DATA

CUSTOMIZING LIVE DATA (PIDs) .................................................. 48

RECORDING (CAPTURING) LIVE DATA ..................................... 49

LIVE DATA PLAYBACK ...................................................................... 53

O2 SENSOR TEST ............................................................................... 55

NON-CONTINUOUS TEST ................................................................ 57

SYSTEM TEST ...................................................................................... 58

VEHICLE INFORMATION ................................................................... 59

GENERIC (GLOBAL) OBD2 PID LIST ..................................................... 61

GLOSSARY

GLOSSARY OF TERMS AND ABBREVIATIONS

WARRANTY AND SERVICING

LIMITED ONE YEAR WARRANTY

SERVICE PROCEDURES .................................................................. 69

..................................................................................... 1

..................................................................................... 3

......................................................................... 5

...................................................... 11

..................................... 15

........... 17

.................................................. 22

.......................................................................... 47

....................... 66

.................................................. 69

i OBD2

Introduction

WHAT IS OBD?

The Enhanced OBD2 Scan Tool is designed to work on all OBD2

compliant vehicles. All 1996 and newer vehicles (cars, light trucks

One of the most exciting improvements in the automobile industry was the addition of onboard diagnostics (OBD) on vehicles, or in more basic terms, the computer that activates the vehicle’s “CHECK ENGINE” light. OBD1 was designed to monitor manufacturer-specific systems on vehicles built from 1981 to 1995. Then came the development of OBD2, which is on all 1996 cars and light trucks sold in the U.S. Like its predecessor, OBD2 was adopted as part of a government mandate to lower vehicle emissions. But what makes OBD2 unique is its universal application for all late model cars and trucks - domestic and import. This sophisticated program in the vehicle’s main computer system is designed to detect failures in a range of systems, and can be accessed through a universal OBD2 port, which is usually found under the dashboard. For all OBD systems, if a problem is found, the computer turns on the “CHECK ENGINE” light to warn the driver, and sets a Diagnostic Trouble Code (DTC) to identify where the problem occurred. A special diagnostic tool, such as the Enhanced OBD2 Scan Tool, is required to retrieve these codes, which consumers and professionals use as a starting point for repairs.

The Enhanced OBD2 Scan Tool provides the additional ability to retrieve enhanced DTCs from most Chrysler/Jeep, General Motors, Ford, Mazda and Isuzu vehicles. The types of enhanced data available depends on the vehicle make. Chrysler/Jeep, Ford/Mazda, GM/Izusu, Honda/Acura and Toyota/Lexus vehicles, as well as Anti-Lock Brake System (ABS) DTCs and vehicle information. The types of enhanced data available depends on the vehicle make.

and SUVs) sold in the United States are OBD2 compliant.

OBD2 1

You Can Do It!

EASY TO USE - EASY TO VIEW - EASY TO DEFINE

Easy To Use . . . .

 Connect the Scan Tool to the vehicle’s

test connector.

 Turn the ignition key "On.”

 Press the LINK button.

Easy To View . . . .

 The Scan Tool retrieves stored codes,

Freeze Frame data and I/M Readiness status.

 Codes, I/M Readiness status and

Freeze Frame data are displayed on the Scan Tool’s display screen. System status is indicated by LED indicators.

Easy To Define . . . .

 Read code definitions from the Scan

Tool’s display.

 View Freeze Frame data.

 View Live Data.

2 OBD2

Safety Precautions

SAFETY FIRST!

To avoid personal injury, instrument damage and/or

damage to your vehicle; do not use the OBD2 Scan Tool

This manual describes common test procedures used by experienced service technicians. Many test procedures require precautions to avoid accidents that can result in personal injury, and/or damage to your vehicle or test equipment. Always read your vehicle's service manual and follow its safety precautions before and during any test or service procedure. ALWAYS observe the following general safety precautions:

When an engine is running, it produces carbon monoxide, a toxic and poisonous gas. To prevent serious injury or death from carbon monoxide poisoning, operate the vehicle ONLY in a well-ventilated area.

To protect your eyes from propelled objects as well as hot or caustic liquids, always wear approved safety eye protection.

before reading this manual.

When an engine is running, many parts (such as the coolant fan, pulleys, fan belt etc.) turn at high speed. To avoid serious injury, always be aware of moving parts. Keep a safe distance from these parts as well as other potentially moving objects.

Engine parts become very hot when the engine is running. To prevent severe burns, avoid contact with hot engine parts.

Before starting an engine for testing or troubleshooting,

make sure the parking brake is engaged. Put the

transmission in park (for automatic transmission) or neutral (for manual transmission). Block the drive wheels

with suitable blocks.

Connecting or disconnecting test equipment when the ignition is ON can damage test equipment and the vehicle's electronic components. Turn the ignition OFF before connecting the Scan Tool to or disconnecting the Scan Tool from the vehicle’s Data Link Connector (DLC).

OBD2 3

Safety Precautions

SAFETY FIRST!

To prevent damage to the on-board computer when taking vehicle electrical measurements, always use a digital multimeter with at least 10 megOhms of impedance.

Fuel and battery vapors are highly flammable. To prevent an explosion, keep all sparks, heated items and open flames away from the battery and fuel / fuel vapors. DO NOT SMOKE NEAR THE VEHICLE DURING TESTING.

Don't wear loose clothing or jewelry when working on an engine. Loose clothing can become caught in the fan, pulleys, belts, etc. Jewelry is highly conductive, and can cause a severe burn if it makes contact between a power source and ground.

4 OBD2

About the Scan Tool

VEHICLES COVERED

The Enhanced OBD2 Scan Tool is designed to work on all OBD2 compliant vehicles. All 1996 and newer vehicles (cars and light trucks) sold in the United States are OBD2 compliant.

Federal law requires that all 1996 and newer cars and light trucks sold in the United States must be OBD2 compliant; this includes all Domestic, Asian and European vehicles.

Some 1994 and 1995 vehicles are OBD2 compliant. To find out if a 1994 or 1995 vehicle is OBD2 compliant, check the following:

1. The Vehicle Emissions Control Information (VECI) Label. This label is located under the hood or by the radiator of most vehicles. If the vehicle is OBD2 compliant, the label will state “OBD II

Certified.”

VEHICLE EMISSION CONTROL INFORMATION

ENGINE FAMILY EFN2.6YBT2BA

VEHICLE

MANUFACTURER

REFER TO SERVICE MANUAL FOR ADDITIONAL INFORMATION TUNE-UP CONDITIONS: NORMAL OPERATING ENGINE TEMPERATURE, ACCESSORIES OFF, COOLING FAN OFF, TRANSMISSION IN NEUTRAL

EXHAUST EMISSIONS STANDARDS STANDARD CATEGORY CERTIFICATION

IN-USE

SPARK PLUG

TYPE NGK BPRE-11

GAP: 1.1MM

DISPLACEMENT 2.6L

THIS VEHICLE CONFORMS TO U.S. EPA AND STATE OF CALIFORNIA REGULATIONS APPLICABLE TO 1999 MODEL YEAR NEW TLEV PASSENGER CARS.

CATALYST

TLEV TLEV INTERMEDIATE

OBD II

CERTIFIED

OBD II

CERTIFIED

2. Government Regulations require that all

OBD2 compliant vehicles must have a “common” sixteen-pin Data Link Connector (DLC).

12345678

9 10111213141516

Some 1994 and 1995 vehicles have 16-pin connectors but are not OBD2 compliant. Only those vehicles with a Vehicle Emissions Control Label stating “OBD II Certified” are OBD2 compliant.

Data Link Connector (DLC) Location

The 16-pin DLC is usually located under the instrument panel (dash), within 12 inches (300 mm) of center of the panel, on the driver’s side of most vehicles. It should be easily accessible and visible from a kneeling position outside the vehicle with the door open.

LEFT CORNER

OF DASH

NEAR

CENTER

OF DASH

BEHIND

ASHTRAY

OBD2 5

About the Scan Tool

BATTERY REPLACEMENT

On some Asian and European vehicles the DLC is located behind the “ashtray” (the ashtray must be removed to access it) or on the far left corner of the dash. If the DLC cannot be located, consult the vehicle’s service manual for the location.

BATTERY REPLACEMENT

Replace batteries when the battery symbol is visible on display and/or the 3 LEDS are all lit and no other data is visible on screen.

1. Locate the battery cover on the back of the Scan Tool.

2. Slide the battery cover off (use your fingers).

3. Replace batteries with three AA-size batteries (for longer life, use

Alkaline-type batteries).

4. Reinstall the battery cover on the back of the Scan Tool.

Language Selection After Battery Installation

The first time the Scan Tool is turned on, you must select the desired display language (English, French or Spanish). Select the display language as follows:

1. Press and hold the POWER/LINK button for approximately 3 seconds to turn the Scan Tool “ON.”

 The Select Language screen dis-

plays.

2. Use the UP as necessary, to highlight the desired display language.

3. When the desired display language is selected, press the ENTER/LD

 The display shows the "To Link" message in the selected display

language. Press the POWER/LINK Tool "off."

 After the initial language selection is performed, it as well as

other settings can be changed as desired. See ADJUSTMENTS AND SETTINGS on page 7 for further instructions.

and DOWN buttons,

button to confirm your selection.

button to turn the Scan

6 OBD2

About the Scan Tool

ADJUSTMENTS AND SETTINGS

The OBD2 Scan Tool lets you make several adjustments and settings to configure the Scan Tool for your particular needs. The following adjustments and settings are available:

 Adjust Brightness: Adjusts the brightness of the display screen.

 DTC Library - Library of OBD2 DTC definitions.

 Display Backlight: Turns the display backlight on and off.

 Select Language: Sets the display language for the Scan Tool to

English, French or Spanish.

 Unit of Measurement: Sets the Unit of Measurement for the Scan

Tool’s display to USA or metric.

Adjustments and settings can be made only when the Scan Tool is NOT connected to a vehicle.

To enter the MENU Mode:

1. With the Scan Tool “off”, press and hold

the UP release the POWER/LINK

 The adjustments and setting MENU

displays.

2. Release the UP

3. Make adjustments and settings as described in the following

paragraphs.

button, then press and

DO NOT release the UP settings MENU is visible on the display.

button.

button until the adjustments and

Adjusting Display Brightness

1. Use the UP

and DOWN buttons, as necessary, to highlight Adjust Brightness in the MENU, then press the ENTER/LD

 The Adjust Brightness screen

button.

displays.

 The Brightness field shows the

current brightness setting, from 0 to

43.

2. Press the UP

button to decrease the brightness of the display (make the display darker).

OBD2 7

About the Scan Tool

ADJUSTMENTS AND SETTINGS

3. Press the DOWN button to increase the brightness of the display (make the display lighter).

4. When the desired brightness is obtained, press the ENTER/LD button to save your changes and return to the MENU.

Searching for a DTC Definition Using the DTC Library

1. Use the UP

and DOWN buttons, as necessary, to highlight DTC Library in the MENU, then press the ENTER/LD

button.

 The Enter DTC screen displays. The

screen shows the code “P0001”, with the “P” flashing.

2. Use the UP

and DOWN buttons, as necessary, to scroll to the desired DTC type (P=Powertrain, U=Network, B=Body, C=Chassis), then press the DTC SCROLL

 The selected character displays “solid”,

button.

and the next character begins flashing.

3. Select the remaining characters in the DTC in the same way, pressing the DTC SCROLL button to confirm each character. When you have selected all the DTC characters, press the ENTER/LD

 If you entered a “Generic” DTC

button to view the DTC definition.

(DTCs that start with “P0”, “P2” and some “P3”):

- The selected DTC and DTC definition (if available) show on

the Scan Tool’s display.

If a definition for the DTC you entered is not available, the “To Link” screen displays.

 If you entered a “Manufacturer-Specific” DTC (DTCs that start

with “P1” and some “P3”):

- The “Select Manufacturer” screen displays.

- Use the UP

and DOWN buttons, as necessary, to highlight the appropriate manufacturer, then press the ENTER/LD button to display the correct DTC for your vehicle.

8 OBD2

About the Scan Tool

ADJUSTMENTS AND SETTINGS

If a definition for the DTC you entered is not available, an advisory message shows on the CanOBD2 Scan Tool’s display.

4. If you wish to view definitions for additional DTCs, press the ENTER/LD

button to return to the Enter DTC

screen, and repeat steps 2 and 3.

5. When all desired DTCs have been viewed, press the ERASE button to exit the DTC Library.

Using the Backlight

1. Use the UP as necessary, to highlight Display Backlight in the MENU, then press the ENTER/LD

 The Display Backlight screen dis-

plays.

2. Press the UP as necessary, to select the desired backlight mode, either ON or OFF.

3. When the desired backlight mode is selected, press the ENTER/LD button to save your changes.

 The display returns to the MENU,

and the backlight turns “on” or “off” as selected.

and DOWN buttons,

button.

or DOWN button,

Selecting the Display Language

1. Use the UP

and DOWN buttons, as necessary, to highlight Select Language in the MENU, then press the ENTER/LD button.

 The Select Language screen dis-

plays.

 The currently selected display

Language is highlighted.

2. Press the UP

or DOWN button, as necessary, to highlight the desired display language.

3. When the desired display language is highlighted, press the ENTER/LD button to save your changes and return to the MENU (shown in the selected display language).

OBD2 9

About the Scan Tool

ADJUSTMENTS AND SETTINGS

Setting the Unit of Measurement

1. Use the UP

and DOWN buttons, as necessary, to highlight Unit of Measurement in the MENU, then press the ENTER/LD

2. Press the UP

button.

or DOWN button,

as necessary, to highlight the desired

Unit of Measurement.

3. When the desired Unit of Measurement

value is selected, press the ENTER/LD

button to save your changes.

Exiting the MENU Mode

1. Use the UP Menu Exit in the MENU, then press the ENTER/LD

 The display returns to the DTC screen (if data is currently stored

and DOWN buttons, as necessary, to highlight

button.

in the Scan Tool) or to the "To Link" message (if no data is currently stored in the Scan Tool).

10 OBD2

Scan Tool Controls

CONTROLS AND INDICATORS

Figure 1. Controls and Indicators

See Figure 1 for the locations of items 1 through 11, below.

ERASE button - Erases Diagnostic Trouble Codes (DTCs), and

“Freeze Frame” data from your vehicle’s computer, and resets Monitor status.

DTC SCROLL button - Displays the DTC View screen and/or

scrolls the display to view DTCs when more than one DTC is present.

POWER/LINK button - When the Scan Tool IS NOT connected

to a vehicle, turns the Scan Tool “On” and “Off”. When the Scan Tool is connected to a vehicle, links the Scan Tool to the vehicle’s PCM to retrieve diagnostic data from the computer’s memory.

To turn the Scan Tool "On", you must press and hold the POWER/LINK

ENTER/LIVE DATA button - When in MENU mode, confirms

button for approximately 3 seconds.

the selected option or value. When linked to a vehicle, places the Scan Tool in "Live Data" mode.

OBD2 11

Scan Tool Controls

DISPLAY FUNCTIONS

5. DOWN button - When in MENU mode, scrolls DOWN through the menu and submenu selection options. When LINKED to a vehicle, scrolls DOWN through the current display screen to display any additional data.

UP button - When in MENU mode, scrolls UP through the menu

and submenu selection options. When LINKED to a vehicle, scrolls UP through the current display screen to display any additional data.

7. GREEN LED - Indicates that all engine systems are running normally (all Monitors on the vehicle are active and performing their diagnostic testing, and no DTCs are present).

8. YELLOW LED - Indicates there is a possible problem. A “Pending” DTC is present and/or some of the vehicle’s emission monitors have not run their diagnostic testing.

9. RED LED - Indicates there is a problem in one or more of the vehicle’s systems. The red LED is also used to show that DTC(s) are present. DTCs are shown on the Scan Tool’s display. In this case, the Multifunction Indicator (“Check Engine”) lamp on the vehicle’s instrument panel will light steady on.

10. Display - Displays settings Menu and submenus, test results, Scan Tool functions and Monitor status information. See DISPLAY

FUNCTIONS, following, for more details.

11. CABLE - Connects the Scan Tool to the vehicle’s Data Link

Connector (DLC).

DISPLAY FUNCTIONS

12 13

3 4 5 6

Figure 2. Display Functions

See Figure 2 for the locations of items 1 through 16, following.

1. I/M MONITOR STATUS field - Identifies the I/M Monitor status area.

12 OBD2

Scan Tool Controls

DISPLAY FUNCTIONS

2. Monitor icons - Indicate which Monitors are supported by the vehicle under test, and whether or not the associated Monitor has run its diagnostic testing (Monitor status). When a Monitor icon is solid, it indicates that the associated Monitor has completed its diagnostic testing. When a Monitor icon is flashing, it indicates that the vehicle supports the associated Monitor, but the Monitor has not yet run its diagnostic testing.

Vehicle icon - Indicates whether or not the Scan Tool is being properly powered through the vehicle’s Data Link Connector (DLC). A visible icon indicates that the Scan Tool is being powered through the vehicle’s DLC connector.

Link icon - Indicates whether or not the Scan Tool is

communicating (linked) with the vehicle’s on-board computer. When visible, the Scan Tool is communicating with the computer. If the Link icon is not visible, the Scan Tool is not communicating with the computer.

Computer icon - When this icon is visible it indicates that the

Scan Tool is linked to a personal computer. An optional “PC Link Kit” is available that makes it possible to upload retrieved data to a personal computer.

Scan Tool Internal Battery icon - When visible, indicates the Scan Tool batteries are “low” and should be replaced. If the batteries are not replaced when the battery symbol LEDs will light up as a last resort indicator to warn you that the batteries need replacement. No data will be displayed on screen when all 3 LEDs are lit.

7. DTC Display Area - Displays the Diagnostic Trouble Code (DTC) number. Each fault is assigned a code number that is specific to that fault.

8. Test Data Display Area - Displays DTC definitions, Freeze Frame data, Live Data and other pertinent test information messages.

9. FREEZE FRAME icon - Indicates that there is Freeze Frame data from “Priority Code” (Code #1) stored in the vehicle’s computer memory.

10. HISTORY icon - Indicates the currently displayed DTC is a “History” code.

11. PENDING icon - Indicates the currently displayed DTC is a “Pending” code.

12. MIL icon - Indicates the status of the Malfunction Indicator Lamp (MIL). The MIL icon is visible only when a DTC has commanded the MIL on the vehicle’s dashboard to light.

13. Code Number Sequence - The Scan Tool assigns a sequence number to each DTC that is present in the computer’s memory, starting with “01.” This number indicates which code is currently displayed. Code number “01” is always the highest priority code, and the one for which “Freeze Frame” data has been stored.

is "on", all 3

OBD2 13

Scan Tool Controls

DISPLAY FUNCTIONS

If “01” is a “Pending” code, there may or may not be “Freeze Frame” data stored in memory.

14. Code Enumerator - Indicates the total number of codes retrieved from the vehicle’s computer.

15.

Generic DTC icon - When visible, indicates that the currently

displayed DTC is a “generic” or universal code.

Manufacturer Specific DTC icon - When visible, indicates that

16.

the currently displayed DTC is a Manufacturer Specific Code.

14 OBD2

Onboard Diagnostics

DIAGNOSTIC TROUBLE CODES (DTCs)

Diagnostic Trouble Codes (DTCs) are meant to guide you to the proper service procedure in the vehicle’s service manual. DO NOT replace parts based only on DTCs without first

Diagnostic Trouble

Codes (DTCs) are

codes that identify a

specific problem area.

consulting the vehicle’s service manual for proper testing procedures for that particular system, circuit or component.

DTCs are alphanumeric codes that are used to identify a problem that is present in any of the systems that are monitored by the on-board computer (PCM). Each trouble code has an assigned message that identifies the circuit, component or system area where the problem was found.

OBD2 diagnostic trouble codes are made up of five characters:

 The 1st character is a letter. It identifies the “main system” where

the fault occurred (Body, Chassis, Powertrain, or Network).

 The 2nd character is a numeric digit. It identifies the “type” of code

(Generic or Manufacturer-Specific).

Generic DTCs are codes that are used by all vehicle manufacturers. The standards for generic DTCs, as well as their definitions, are set by the Society of Automotive Engineers (SAE).

Manufacturer-Specific DTCs are codes that are controlled by the vehicle manufacturers. The Federal Government does not require vehicle manufacturers to go beyond the standardized generic DTCs in order to comply with the new OBD2 emissions standards. However, manufacturers are free to expand beyond the standardized codes to make their systems easier to diagnose.

 The 3rd character is a numeric digit. It identifies the specific

system or sub-system where the problem is located.

 The 4th and 5th characters are numeric digits. They identify the

section of the system that is malfunctioning.

DTCs and MIL Status

When the vehicle’s on-board computer detects a failure in an emissions-related component or system, the computer’s internal diagnostic program assigns a diagnostic trouble code (DTC) that points to the system (and subsystem) where the fault was found. The diagnostic program saves the code in the computer’s memory. It records a “Freeze Frame” of conditions present when the fault was found, and lights the Malfunction Indicator Lamp (MIL). Some faults require detection for two trips in a row before the MIL is turned on.

OBD2 15

Onboard Diagnostics

DIAGNOSTIC TROUBLE CODES (DTCs)

The “Malfunction Indicator Lamp” (MIL) is the accepted term used to describe the lamp on the dashboard that lights to warn the driver that an emissions-related fault has been found. Some manufacturers may still call this lamp a “Check Engine” or “Service Engine Soon” light.

P0201 - Injector Circuit Malfunction, Cylinder 1

OBD2 DTC EXAMPLE

Body

Chassis

Powertrain

Network

Generic

Manufacturer Specific

Generic

Includes both Generic and Manufacturer

Specific Codes

Identifies the system where the problem is located:

Fuel and Air Metering

Fuel and Air Metering (injector circuit malfunction only)

Ignition System or Misfire

Auxiliary Emission Control System

Vehicle Speed Control and Idle Control System

Computer Output Circuits

Transmission

Identifies what section of the system is malfunctioning

P 0 2 0 1

16 OBD2

Preparation for Testing

PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET

The purpose of this form is to help you gather preliminary information on your vehicle before you retrieve codes. By having a complete account of your vehicle's current problem(s), you will be able to systematically pinpoint the problem(s) by comparing your answers to the fault codes you retrieve. You can also provide this information to your mechanic to assist in diagnosis and help avoid costly and unnecessary repairs. It is important for you to complete this form to help you and/or your mechanic have a clear understanding of your vehicle's problems.

NAME:

DATE:

VIN*:

YEAR:

MAKE:

MODEL:

ENGINE SIZE:

VEHICLE MILEAGE:

*VIN: Vehicle Identification Number, found at the base of the windshield on a metallic plate, or at the driver door latch area (consult your vehicle owner's manual for location).

TRANSMISSION:

❏ Automatic

❏ Manual

Please check all applicable items in each category.

DESCRIBE THE PROBLEM:

OBD2 17

Preparation for Testing

PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET

WHEN DID YOU FIRST NOTICE THE PROBLEM:

❏ Just Started

❏ Started Last Week

❏ Started Last Month

❏ Other:

LIST ANY REPAIRS DONE IN THE PAST SIX MONTHS:

PROBLEMS STARTING

❏ No symptoms

❏ Will not crank

ENGINE QUITS OR STALLS

❏ No symptoms

❏ Right after starting

❏ When shifting into gear

❏ During steady-speed

driving

❏ Cranks, but will not start

❏ Starts, but takes a long

time

❏ Right after vehicle

comes to a stop

❏ While idling

❏ During acceleration

❏ When parking

IDLING CONDITIONS

❏ No symptoms

❏ Is too slow at all times

❏ Is too fast

❏ Is sometimes too fast or

too slow

❏ Is rough or uneven

❏ Fluctuates up and down

RUNNING CONDITIONS

❏ No symptoms

❏ Runs rough

❏ Lacks power

❏ Bucks and jerks

❏ Poor fuel economy

❏ Hesitates or stumbles on

❏ Backfires

❏ Misfires or cuts out

❏ Engine knocks, pings or

rattles

❏ Surges

❏ Dieseling or run-on

accelerations

18 OBD2

Preparation for Testing

PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET

AUTOMATIC TRANSMISSION PROBLEMS (if applicable)

❏ No symptoms ❏ Shifts too early or too late ❏ Changes gear incorrectly

PROBLEM OCCURS

❏ Morning ❏ Afternoon ❏ Anytime

ENGINE TEMPERATURE WHEN PROBLEM OCCURS

❏ Cold ❏ Warm ❏ Hot

DRIVING CONDITIONS WHEN PROBLEM OCCURS

❏ Short - less than 2 miles ❏ 2 - 10 miles ❏ Long - more than 10 miles ❏ Stop and go ❏ While turning ❏ While braking ❏ At gear engagement ❏ With A/C operating

DRIVING HABITS

❏ Mostly city driving ❏ Highway ❏ Park vehicle inside ❏ Park vehicle outside

GASOLINE USED

❏ 87 Octane ❏ 89 Octane

WEATHER CONDITIONS WHEN PROBLEM OCCURS

❏ 32 - 55° F (0 - 13° C) ❏ Below freezing (32° F / 0° C)

CHECK ENGINE LIGHT / DASH WARNING LIGHT

❏ Sometimes ON ❏ Always ON ❏ Never ON

PECULIAR SMELLS

❏ "Hot" ❏ Sulfur ("rotten egg") ❏ Burning rubber

STRANGE NOISES

❏ Rattle ❏ Knock

❏ Vehicle does not move

when in gear

❏ Jerks or bucks

❏ With headlights on ❏ During acceleration ❏ Mostly driving downhill ❏ Mostly driving uphill ❏ Mostly driving level ❏ Mostly driving curvy

roads

❏ Mostly driving rough

roads

❏ Drive less than 10 miles per day ❏ Drive 10 to 50 miles per day ❏ Drive more than 50 miles per

day

❏ 91 Octane ❏ More than 91 Octane

❏ Above 55° F (13° C)

❏ Gasoline ❏ Burning oil ❏ Electrical

❏ Squeak ❏ Other

OBD2 19

Preparation for Testing

BEFORE YOU BEGIN

The Enhanced OBD2 Scan Tool aids in monitoring electronicand emissions-related faults in your vehicle and retrieving fault codes related to malfunctions in these systems. Mechanical problems such as low oil level or damaged hoses, wiring or electrical connectors can cause poor engine performance and may also cause a fault code to set. Fix any known mechanical problems before performing any test. See your vehicle’s service manual or a mechanic for more information.

Check the following areas before starting any test:

 Check the engine oil, power steering fluid, transmission fluid (if

applicable), engine coolant and other fluids for proper levels. Top off low fluid levels if needed.

 Make sure the air filter is clean and in good condition. Make sure all

air filter ducts are properly connected. Check the air filter ducts for holes, rips or cracks.

 Make sure all engine belts are in good condition. Check for cracked,

torn, brittle, loose or missing belts.

 Make sure mechanical linkages to engine sensors (throttle, gearshift

position, transmission, etc.) are secure and properly connected. See your vehicle’s service manual for locations.

 Check all rubber hoses (radiator) and steel hoses (vacuum/fuel) for

leaks, cracks, blockage or other damage. Make sure all hoses are routed and connected properly.

 Make sure all spark plugs are clean and in good condition. Check

for damaged, loose, disconnected or missing spark plug wires.

 Make sure the battery terminals are clean and tight. Check for

corrosion or broken connections. Check for proper battery and charging system voltages.

 Check all electrical wiring and harnesses for proper connection.

Make sure wire insulation is in good condition, and there are no bare wires.

 Make sure the engine is mechanically sound. If needed, perform a

compression check, engine vacuum check, timing check (if applicable), etc.

20 OBD2

Preparation for Testing

VEHICLE SERVICE MANUALS

Always refer to the manufacturer’s service manual for your vehicle before performing any test or repair procedures. Contact your local car dealership, auto parts store or bookstore for availability of these manuals. The following companies publish valuable repair manuals:

 Haynes Publications

861 Lawrence Drive Newbury Park, California 91320 Phone: 800-442-9637

 Mitchell International

14145 Danielson Street Poway, California 92064 Phone: 888-724-6742

 Motor Publications

5600 Crooks Road, Suite 200 Troy, Michigan 48098 Phone: 800-426-6867

FACTORY SOURCES

Ford, GM, Chrysler, Honda, Isuzu, Hyundai and Subaru Service Manuals

 Helm Inc.

14310 Hamilton Avenue Highland Park, Michigan 48203 Phone: 800-782-4356

OBD2 21

Using the Scan Tool

CODE RETRIEVAL PROCEDURE

Retrieving and using Diagnostic Trouble Codes (DTCs) for

troubleshooting vehicle operation is only one part of an

Never replace a part based only on the DTC definition. Each DTC has a set of testing procedures, instructions and flow charts that must be followed to confirm the location of the problem. This information is found in the vehicle's service manual. Always refer to the vehicle's service manual for detailed testing instructions.

Check your vehicle thoroughly before performing any test. See BEFORE YOU BEGIN on page 20 for details.

ALWAYS observe safety precautions whenever working on a vehicle. See SAFETY PRECAUTIONS on page 3 for more information.

1. Turn the ignition off.

2. Locate the vehicle's 16-pin Data Link

Connector (DLC). See page 5 for connector location.

Some DLCs have a plastic cover that must be removed before connecting the Scan Tool cable connector.

If the Scan Tool is ON, turn it OFF by pressing the POWER/LINK button BEFORE connecting the Scan Tool to the DLC.

3. Connect the Scan Tool cable connector to the vehicle’s DLC. The cable connector is keyed and will only fit one way.

 If you have problems connecting the cable connector to the DLC,

rotate the connector 180° and try again.

 If you still have problems, check the DLC on the vehicle and on

the Scan Tool. Refer to your vehicle’s service manual to properly check the vehicle’s DLC.

4. When the Scan Tool’s cable connector is properly connected to the vehicle’s DLC, the unit automatically turns ON, and the display shows instructions for linking to the vehicle’s on-board computer.

overall diagnostic strategy.

22 OBD2

Using the Scan Tool

CODE RETRIEVAL PROCEDURE

 If the unit does not power on automatically when connected to

the vehicle’s DLC connector, it usually indicates there is no power present at the vehicle’s DLC connector. Check your fuse panel and replace any burned-out fuses.

 If replacing the fuse(s) does not correct the problem, consult

your vehicle’s repair manual to identify the proper computer (PCM) fuse/circuit, and perform any necessary repairs before proceeding.

5. Turn the ignition on. DO NOT start the engine.

6. Press and release the Scan Tool’s POWER/LINK

 The Scan Tool will automatically

start a check of the vehicle’s computer to determine which type of communication protocol it is using. When the Scan Tool identifies the computer’s communication protocol, a communication link is established. The protocol type used by the vehicle’s computer is shown on the display.

A PROTOCOL is a set of rules and procedures for regulating data transmission between computers, and between testing equipment and computers. As of this writing, five different types of protocols (ISO 9141, Keyword 2000, J1850 PWM, J1850 VPW and CAN) are in use by vehicle manufacturers. The Scan Tool automatically identifies the protocol type and establishes a communication link with the vehicle’s computer.

7. After approximately 10~60 seconds, the Scan Tool will retrieve and display any Diagnostic Trouble Codes, Monitor Status and Freeze

Frame Data retrieved from the vehicle’s computer memory.

 If the Scan Tool fails to link to the

vehicle’s computer a “Linking Failed” message shows on the Scan Tool’s display.

- Verify the connection at the DLC, and verify the ignition is ON.

- Turn the ignition OFF, wait 5 seconds, then turn back ON to reset the computer.

- Ensure your vehicle is OBD2 compliant. See VEHICLES COVERED on page 5 for vehicle compliance verification information.

button.

OBD2 23

Using the Scan Tool

CODE RETRIEVAL PROCEDURE

 The Scan Tool will display a code

only if codes are present in the vehicle’s computer memory. If no codes are present, a “No DTC’s or Freeze Frame data presently stored in the vehicle’s computer” message is displayed.

- If the ENTER/LD

pressed from the “no DTCs” screen, the message “No Powertrain DTCs or Freeze Frame Data is presently stored in the Scan Tool’s memory. Press the DTC button to view your Enhanced or ABS DTC’s” displays. Press the DTC SCROLL

button to enter the “enhanced” mode (see THE ENHANCED MAIN MENU on page 28).

 The Scan Tool is capable of retrieving and storing up to 32

codes in memory, for immediate or later viewing.

8. To read the display:

Refer to DISPLAY FUNCTIONS on page 12 for a description of display elements.

 A visible icon indicates that the Scan Tool is being powered

through the vehicle’s DLC connector.

 A visible icon indicates that the Scan Tool is linked to

(communicating with) the vehicle’s computer.

 The I/M Monitor Status icons indicate the type and number of

Monitors the vehicle supports, and provides indications of the current status of the vehicle’s Monitors. A solid Monitor icon indicates the associated Monitor has run and completed its testing. A blinking Monitor icon indicates the associated Monitor has not run and completed its testing.

 The upper right hand corner of the

display shows the number of the code currently being displayed, the total number of codes retrieved, the type of code (G = Generic; M = Enhanced or Manufacturer specific), and whether or not the displayed code commanded the MIL on. If the code being displayed is a PENDING code, the PENDING icon is shown.

 The Diagnostic Trouble Code (DTC) and related code definition

are shown in the lower section of the display.

button is

24 OBD2

Using the Scan Tool

CODE RETRIEVAL PROCEDURE

In the case of long code definitions, or when viewing Freeze Frame and Live Data, a small arrow is shown in the upper/lower right-hand corner of the Scan Tool display area to indicate the presence of additional information. Use the

buttons, as necessary, to view the additional informa-

and tion.

If a definition for the currently displayed code is not available, an advisory message shows on the Scan Tool’s display.

9. Read and interpret Diagnostic Trouble Codes/system condition using the display and the green, yellow and red LEDs.

The green, yellow and red LEDs are used (with the display) as visual aids to make it easier to determine engine system conditions.

 Green LED – Indicates that all

engine systems are “OK” and operating normally. All monitors supported by the vehicle have run and performed their diagnostic testing, and no trouble codes are present. A zero will show on the Scan Tool’s display, and all Monitor icons will be solid.

 Yellow LED – Indicates one of the

following conditions:

A. A PENDING CODE IS PRESENT –

If the yellow LED is illuminated, it may indicate a Pending code is present. Check the Scan Tool’s display for confirmation. A Pending code is confirmed by the presence of a numeric code and the word PENDING on the Scan Tool’s display.

B. MONITOR NOT RUN STATUS – If

the Scan Tool’s display shows a zero (indicating there are no DTC’s present in the vehicle’s computer memory), but the yellow LED is illuminated, it may be an indication that some of the Monitors supported by the vehicle have not yet run and completed their diagnostic testing. Check the Scan Tool’s display for confirmation. All Monitor icons that are blinking have not yet run and completed their diagnostic testing; all Monitor icons that are solid have run and completed their diagnostic testing.

OBD2 25

Using the Scan Tool

CODE RETRIEVAL PROCEDURE

 Red LED – Indicates there is a

problem with one or more of the vehicle’s systems. The red LED is also used to indicate that DTC(s) are present (displayed on the Scan Tool’s screen). In this case, the Multifunction Indicator (Check Engine) lamp on the vehicle’s instrument panel will be illuminated.

 DTC’s that start with “P0”, “P2” and some “P3” are

considered Generic (Universal). All Generic DTC definitions are the same on all OBD2 equipped vehicles. The Scan Tool automatically displays the code definitions (if available) for Generic DTC’s.

If the definition for the currently displayed code is not available, an advisory message shows on the Scan Tool’s LCD display.

 DTC’s that start with “P1” and some

“P3” are Manufacturer specific codes and their code definitions vary with

each vehicle manufacturer. When a Manufacturer specific DTC is retrieved, the LCD display shows a list of vehicle manufacturers. Use the

and DOWN buttons, as

UP necessary, to highlight the appropriate manufacturer, then press the ENTER/LD button to display the correct code definition for your vehicle.

If the manufacturer for your vehicle is not listed, use the UP and DOWN manufacturer and press the ENTER/LD additional DTC information.

If the Manufacturer Specific definition for the currently displayed code is not available, an advisory message shows on the Scan Tool’s display.

10. If more than one DTC was retrieved, and to view Freeze Frame Data, press and release the DTC SCROLL button, as necessary.

 Each time the DTC SCROLL button is pressed and

released, the Scan Tool will scroll and display the next DTC in sequence until all DTCs in its memory have displayed.

buttons, as necessary, to select Other

button for

26 OBD2

Using the Scan Tool

CODE RETRIEVAL PROCEDURE

 Freeze Frame Data (if available) will display after DTC #1.

Whenever the Scroll function is used to view additional DTCs and Freeze Frame Data, the Scan Tool's communication link with the vehicle's computer disconnects. To re-establish communication, press the POWER/LINK

 In OBD2 systems, when an

emissions-related engine malfunction occurs that causes a DTC to set, a record or snapshot of engine conditions at the time that the malfunction occurred is also saved in the vehicle’s computer memory. The record saved is called Freeze Frame data. Saved engine conditions include, but are not limited to: engine speed, open or closed loop operation, fuel system commands, coolant temperature, calculated load value, fuel pressure, vehicle speed, air flow rate, and intake manifold pressure.

If more than one malfunction is present that causes more than one DTC to be set, only the code with the highest priority will contain Freeze Frame data. The code designated “01” on the Scan Tool display is referred to as the PRIORITY code, and Freeze Frame data always refers to this code. The priority code is also the one that has commanded the MIL on.

Retrieved information can be uploaded to a Personal Computer (PC) with the use of an optional “PC Link Kit.” (see instructions included with PC-Link program for more information).

11. When the last retrieved DTC has been displayed and the DTC SCROLL

“enhanced” mode.

 See VIEWING ENHANCED DTCs on page 32 to view enhanced

DTCs for your vehicle.

 If you do not wish to view enhanced DTCs, press the DTC

SCROLL

If a Manufacturer specific DTC was retrieved during the code retrieval process, and the manufacturer selected for the code was not Chrysler, Jeep, Ford, Mazda, General Motors or Isuzu, pressing the DTC SCROLL after display of the last retrieved DTC returns the screen to the first retrieved DTC (the Enhanced DTC menu is not displayed).

12. Determine engine system(s) condition by viewing the Scan Tool’s display for any retrieved Diagnostic Trouble Codes, code definitions, Freeze Frame data and Live Data, interpreting the green, yellow and red LEDs.

button again.

button is pressed, the Scan Tool enters the

button to return to the OBD2 DTC screen.

button

OBD2 27

Using the Code Reader

THE ENHANCED MAIN MENU

 If DTC’s were retrieved and you are going to perform the repairs

yourself, proceed by consulting the Vehicle’s Service Repair Manual for testing instructions, testing procedures, and flow charts related to retrieved code(s).

 If you plan to take the vehicle to a professional to have it

serviced, complete the PRELIMINARY VEHICLE DIAGNOSTIC WORKSHEET on page 17 and take it together with the retrieved codes, freeze frame data and LED information to aid in the troubleshooting procedure.

 To prolong battery life, the Scan Tool automatically shuts “Off”

approximately three minutes after it is disconnected from the vehicle. The DTCs retrieved, captured Live Data Information, Monitor Status and Freeze Frame data (if any) will remain in the Scan Tool’s memory, and may be viewed at any time by turning the unit “On”. If the Scan Tool’s batteries are removed, or if the Scan Tool is re-linked to a vehicle to retrieve codes/data, any prior codes/data in its memory are automatically cleared.

THE ENHANCED MAIN MENU

Following the code retrieval procedure (see CODE RETRIEVAL PROCEDURE on page 22), when the last retrieved DTC has been displayed and the DTC SCROLL enters the “enhanced” mode. The “enhanced” mode provides the ability to retrieve enhanced DTCs from most Chrysler/Jeep, Ford/Mazda, GM/Isuzu, Honda/Acura and Toyota/Lexus vehicles. The types of enhanced data available depends on the vehicle make. You can also retrieve Anti-Lock Brake System (ABS) DTCs.

ABS DTCs are available for Chrysler/Jeep, Ford and GM vehicles only.

The screen shown when the Scan Tool enters the “enhanced” mode depends on the type(s) of DTC(s) returned during the code retrieval process:

 If no DTCs were retrieved, or only

generic DTCs were retrieved, the Enhanced Main Menu displays. Use the UP necessary, to highlight the desired option, then press the ENTER/LD button to view the selected information, or, press the DTC SCROLL to return to the OBD2 DTC screen.

and DOWN buttons, as

button is pressed, the Scan Tool

button

- When View ABS DTCs or View Enhanced DTCs is selected, the Select Manufacturer screen displays. Use the UP

and DOWN buttons, as necessary, to highlight the appropriate manufacturer, then press the ENTER/LD

button to

view the selected information.

28 OBD2

Using the Code Reader

VIEWING ABS DTCs

If the manufacturer of the vehicle from which codes were retrieved is not listed, press the DTC SCROLL to return to the OBD2 DTC screen. Enhanced data is not available for your vehicle.

 If a Manufacturer specific DTC was

retrieved, and the manufacturer selected for the code was Chrysler, Jeep, Ford, Mazda, General Motors, Isuzu, Honda, Acura, Toyota or Lexus, the Select Data menu displays. Use the UP DOWN highlight the desired option, then press the ENTER/LD the DTC SCROLL

 If a Manufacturer specific DTC was retrieved, and the manufacturer

selected for the code was not Chrysler, Jeep, Ford, Mazda, General Motors, Isuzu, Honda, Acura, Toyota or Lexus the “enhanced” mode is bypassed, and the OBD2 DTC screen shows the first code retrieved. Enhanced data is not available for your vehicle.

To view ABS DTCs: Select View ABS DTCs from the Enhanced Main Menu (then

choose the appropriate manufacturer if prompted). Refer to VIEWING ABS DTCs on page 29 to view ABS DTCs for your vehicle.

buttons, as necessary, to

button

and

button to view the selected information, or, press

button to return to the OBD2 DTC screen.

To view Enhanced DTCs: Select View Enhanced DTCs from the Enhanced Main

Menu (then choose the appropriate manufacturer if prompted). Refer to VIEWING ENHANCED DTCs on page 32 to view enhanced DTCs for your vehicle.

VIEWING ABS DTCs

When View ABS DTCs is selected from the Enhanced Main Menu (and the appropriate vehicle manufacturer is selected, if prompted), the ABS Menu for the appropriate vehicle manufacturer displays. You may choose to “Read ABS DTCs” or “Erase ABS DTCs.”

OBD2 29

Using the Code Reader

VIEWING ABS DTCs

Reading ABS DTCs

1. Use the UP and DOWN buttons, as necessary, to highlight Read ABS DTCs, then press the ENTER/LD

 A "One moment please" message

displays while the Scan Tool retrieves the selected DTCs.

 If the Scan Tool fails to link to the

vehicle’s computer, a "Linking Failed" message shows on the Scan Tool’s display.

- Verify the ignition is ON, then press the ENTER/LD

 If the vehicle does not support ABS communication, an advisory

message shows on the Scan Tool’s display. Press the

ENTER/LD

2. To read the display:

Refer to DISPLAY FUNCTIONS on page 12 for a description of LCD display elements.

 A visible icon indicates that the Scan Tool is being powered

through the vehicle’s DLC connector.

 A visible icon indicates that the Scan Tool is linked to

(communicating with) the vehicle’s computer.

 The upper right hand corner of the

display shows the number of the code currently being displayed, the total number of codes retrieved.

 The Diagnostic Trouble Code (DTC)

and related code definition are shown in the lower section of the LCD display.

I/M MONITOR STATUS icons are not displayed when viewing ABS DTCs.

In the case of long code definitions, a small arrow is shown in the upper/lower right-hand corner of the code display area to indicate the presence of additional information. Use the UP

and DOWN information.

 The Scan Tool will display a code

only if codes are present in the vehicle’s computer memory. If no codes are present, a "No ABS DTC’s are presently stored in the vehicle’s computer" is displayed. Press the ENTER/LD return to the ABS Menu.

button.

button to continue.

button to return to exit.

buttons, as necessary, to view the additional

button to

30 OBD2

Using the Code Reader

VIEWING ABS DTCs

3. If more than one code was retrieved press the DTC SCROLL button, as necessary, to display additional codes one at a time.

 Whenever the scroll function is used to view additional codes,

the Scan Tool’s communication link with the vehicle’s computer disconnects. To re-establish communication, press the LINK button again.

4. When the last retrieved DTC has been displayed and the DTC SCROLL

button is pressed, the Scan Tool returns to the ABS Menu.

 To exit the enhanced mode, use the UP and DOWN

buttons, as necessary, to select Exit from the ABS Menu, then press the ENTER/LD the OBD2 DTC screen.

Erasing ABS DTCs

If you plan to take the vehicle to a Service Center for repair, DO NOT erase the ABS DTCs from the vehicle’s computer. If the codes are erased, valuable information that might help the technician troubleshoot the problem will be erased.

1. Use the UP as necessary, to highlight Erase ABS DTCs, then press the ENTER/LD button.

2. A confirmation message shows on the LCD display.

 If you are sure you want to proceed, press the ERASE

button to erase the ABS DTCs from the vehicle’s computer.

 If you do not want to continue with the erase process, press the

POWER/LINK the ABS Menu.

3. If you chose to erase ABS DTCs, a progress screen displays while ion is in progress.

 If the erase was successful, a

confirmation message shows on the LCD display. Press the ENTER/LD

button to return to the ABS Menu.

and DOWN buttons,

button. The Code Reader returns to

button to exit the erase mode and return to

 If the erase was not successful, an

advisory message shows on the LCD display. Verify that the Scan Tool is properly connected to the vehicle’s DLC and that the ignition is on, then repeat steps 2 and 3, above.

OBD2 31

Using the Scan Tool

VIEWING ENHANCED DTCs

Erasing ABS DTCs does not fix the problem(s) that caused the code(s) to be set. If proper repairs to correct the problem(s) that caused the code(s) to be set are not made, the code(s) will appear again as soon as the vehicle is driven long enough for the problem to recur.

VIEWING ENHANCED DTCs

Refer to the appropriate paragraph to view enhanced data for your vehicle:

 Chrysler/Jeep......................................... page 32

 Ford/Mazda............................................ page 33

 GM/Isuzu................................................ page 35

 Honda/Acura.......................................... page 37

 Toyota/Lexus ......................................... page 38

Chrysler/Jeep Enhanced DTCs

When View Enhanced DTCs is selected from the Enhanced Main Menu (and Chrysler/Jeep is selected, if prompted), the Chrysler Enhanced menu displays. You may view either “Engine DTCs” or “Transmission DTCs.”

1. Use the UP as necessary, to highlight the desired option, then press the ENTER/LD button.

Transmission DTCs are not supported on most Chrysler/Jeep vehicles manufactured prior to 2002.

 A “One moment please” message displays while the Scan Tool

retrieves the selected DTCs.

 If the Scan Tool fails to link to the

vehicle’s computer, a “Linking Failed” message shows on the Scan Tool’s display.

- Verify the ignition is ON, then press the ENTER/LD to continue.

2. To read the display:

Refer to DISPLAY FUNCTIONS on page 12 for a description of LCD display elements.

 A visible icon indicates that the Scan Tool is being powered

through the vehicle’s DLC connector.

 A visible icon indicates that the Scan Tool is linked to

(communicating with) the vehicle’s computer.

and DOWN buttons,

button

32 OBD2

Using the Scan Tool

VIEWING ENHANCED DTCs

 The upper right hand corner of the

display shows the number of the code currently being displayed, the total number of codes retrieved.

 The Diagnostic Trouble Code (DTC)

and related code definition are shown in the lower section of the LCD display.

I/M MONITOR STATUS icons are not displayed when viewing enhanced DTCs.

In the case of long code definitions, or when viewing Freeze Frame data, a small arrow is shown in the upper/lower right-hand corner of the code display area to indicate the presence of additional information. Use

the additional information.

 The Scan Tool will display a code only

if codes are present in the vehicle’s computer memory. If no codes are present, a “No Enhanced DTC’s are presently stored in the vehicle’s computer” is displayed. Press the ENTER/LD Chrysler Enhanced menu.

3. If more than one code was retrieved press the DTC SCROLL button, as necessary, to display additional codes one at a time.

 Whenever the Scroll function is used to view additional codes,

the Scan Tool’s communication link with the vehicle’s computer disconnects. To re-establish communication, press the LINK button again.

4. When the last retrieved DTC has been displayed and the DTC SCROLL

Chrysler Enhanced menu.

 To view additional enhanced DTCs, repeat steps 1 through 4, above.

 To exit the enhanced mode, use the UP and DOWN

buttons, as necessary, to select Exit from the Chrysler Enhanced menu, then press the ENTER/LD Scan Tool returns to the OBD2 DTC screen.

button is pressed, the Scan Tool returns to the

and buttons, as necessary, to view the

button to return to the

button. The

Ford/Mazda Enhanced DTCs

Mazda Enhanced DTCs are available for Mazda-branded Ford vehicles only.

OBD2 33

Using the Scan Tool

VIEWING ENHANCED DTCs

When View Enhanced DTCs is selected from the Enhanced Main Menu (and Ford/Mazda is selected, if prompted), the Ford/Mazda Enhanced menu displays. You may view DTCs for either the “Continuous Memory Test”, “KOEO (Key On Engine Off) Test” or

“KOER (Key On Engine Running) Test.”

1. Use the UP necessary, to highlight the desired option, then press the ENTER/LD

When choosing to view KOER Test DTCs, start the vehicle’s

engine before making your selection.

 A “One moment please” message

displays, while the Scan Tool retrieves the selected DTCs.

 If the Scan Tool fails to link to the

vehicle’s computer, a “Linking Failed” message shows on the Scan Tool’s Display.

- Verify the ignition is ON, then press the ENTER/LD button to continue.

 If the KOER Test was selected, and

the vehicle’s engine is not running, an advisory message shows on the Scan Tool’s display.

- Start the vehicle’s engine, then

press the ENTER/LD to continue.

2. To read the display:

Refer to DISPLAY FUNCTIONS on page 12 for a description of LCD display elements.

 A visible icon indicates that the Scan Tool is being powered

through the vehicle’s DLC connector.

 A visible icon indicates that the Scan Tool is linked to

(communicating with) the vehicle’s computer.

 The upper right hand corner of the

display shows the number of the code currently being displayed, the total number of codes retrieved.

 The Diagnostic Trouble Code (DTC)

and related code definition are shown in the lower section of the LCD display.

I/M MONITOR STATUS icons are not displayed when viewing enhanced DTCs.

and DOWN buttons, as

button.

button

34 OBD2

Using the Scan Tool

VIEWING ENHANCED DTCs

the additional information.

 The Scan Tool will display a code only if

codes are present in the vehicle’s computer memory. If no codes are present, a “No Enhanced DTC’s are presently stored in the vehicle’s computer” is displayed. Press the ENTER/LD Ford/Mazda Enhanced menu.

3. If more than one code was retrieved press the DTC SCROLL button, as necessary, to display additional codes one at a time.

 Whenever the Scroll function is used to view additional codes,

the Scan Tool’s communication link with the vehicle’s computer disconnects. To re-establish communication, press the LINK button again.

4. When the last retrieved DTC has been displayed and the DTC SCROLL

Ford/Mazda Enhanced menu.

 To view additional enhanced DTCs, repeat steps 1 through 4,

above.

 To exit the enhanced mode, use the UP and DOWN

buttons, as necessary, to select Exit from the Ford/Mazda Enhanced menu, then press the ENTER/LD Scan Tool returns to the OBD2 DTC screen.

button is pressed, the Scan Tool returns to the

and buttons, as necessary, to view the

button to return to the

button. The

General Motors/Isuzu Enhanced DTCs

When View Enhanced DTCs is selected from the Enhanced Main Menu (and General Motors/Isuzu is selected, if prompted), the GM/Isuzu Enhanced menu displays. You may view the “MIL DTC”, “Current DTC”, “Fail Since Clear DTC” or “History DTC.”

1. Use the UP

and DOWN buttons, as necessary, to highlight the desired option, then press the ENTER/LD button.

 A “One moment please” message

displays while the Scan Tool retrieves the selected DTCs.

OBD2 35

Using the Scan Tool

VIEWING ENHANCED DTCs

 If the Scan Tool fails to link to the

vehicle’s computer, a “Linking Failed” message shows on the Scan Tool’s display.

- Verify the ignition is ON, then press the ENTER/LD to continue.

2. To read the display:

Refer to DISPLAY FUNCTIONS on page 12 for a description of LCD display elements.

 A visible icon indicates that the Scan Tool is being powered

through the vehicle’s DLC connector.

 A visible icon indicates that the Scan Tool is linked to

(communicating with) the vehicle’s computer.

 The upper right hand corner of the

display shows the number of the code currently being displayed, the total number of codes retrieved.

 The Diagnostic Trouble Code (DTC)

and related code definition are shown in the lower section of the LCD display.

I/M MONITOR STATUS icons are not displayed when viewing enhanced DTCs.

 The Scan Tool will display a code

only if codes are present in the vehicle’s computer memory. If no codes are present, a “No Enhanced DTC’s are presently stored in the vehicle’s computer” is displayed. Press the ENTER/LD return to the GM Enhanced menu.

3. If more than one code was retrieved press the DTC SCROLL button, as necessary, to display additional codes one at a time.

 Whenever the Scroll function is used to view additional codes,

the Scan Tool’s communication link with the vehicle’s computer disconnects. To re-establish communication, press the LINK button again.

button

and buttons, as necessary, to view the

button to

36 OBD2

Using the Scan Tool

VIEWING ENHANCED DTCs

4. When the last retrieved DTC has been displayed and the DTC SCROLL

GM/Isuzu Enhanced menu.

 To view additional enhanced DTCs, repeat steps 1 through 4,

above.

 To exit the enhanced mode, use the UP and DOWN

buttons, as necessary, to select Exit from the GM/Isuzu Enhanced menu, then press the ENTER/LD Scan Tool returns to the OBD2 DTC screen.

Honda/Acura Enhanced DTCs

When View Enhanced DTCs is selected from the Enhanced Main Menu (and Honda/Acura is selected, if prompted), the Honda Acura Enhanced menu displays. Depending on the protocol used to communicate with your vehicle, the Honda/Acura Enhanced menu provides options to view:

 Permanent DTCs or Temporary DTCs  Confirmed DTCs or History DTCs

1. Use the UP as necessary, to highlight the desired option, then press the ENTER/LD button.

 A “One moment please” message

displays while the Scan Tool retrieves the selected DTCs.

 If the Scan Tool fails to link to the

vehicle’s computer, a “Linking Failed” message shows on the Scan Tool’s display.

- Verify the ignition is ON, then press the ENTER/LD

2. To read the display:

Refer to DISPLAY FUNCTIONS on page 12 for a description of LCD display elements.

 A visible icon indicates that the Scan Tool is being powered

through the vehicle’s DLC connector.

 A visible icon indicates that the

Scan Tool is linked to (communicating with) the vehicle’s computer.

 The upper right hand corner of the

display shows the number of the code currently being displayed, the total number of codes retrieved.

button is pressed, the Scan Tool returns to the

button to continue.

button. The

and DOWN buttons,

OBD2 37

Using the Scan Tool

VIEWING ENHANCED DTCs

 The Diagnostic Trouble Code (DTC) and related code definition

are shown in the lower section of the LCD display.

I/M MONITOR STATUS icons are not displayed when viewing enhanced DTCs.

 The Scan Tool will display a code only

3. If more than one code was retrieved press the DTC SCROLL button, as necessary, to display additional codes one at a time.

 Whenever the Scroll function is used to view additional codes,

the Scan Tool’s communication link with the vehicle’s computer disconnects. To re-establish communication, press the LINK button again.

4. When the last retrieved DTC has been displayed and the DTC SCROLL

Honda/Acura Enhanced menu.

 To view additional enhanced DTCs, repeat steps 1 through 4, above.

 To exit the enhanced mode, use the UP and DOWN

buttons, as necessary, to select Exit from the Honda/Acura Enhanced menu, then press the ENTER/LD Scan Tool returns to the OBD2 DTC screen.

button is pressed, the Scan Tool returns to the

and buttons, as necessary, to view the

button to return to the

button. The

Toyota/Lexus Enhanced DTCs

When View Enhanced DTCs is selected from the Enhanced Main Menu (and Toyota/Lexus is selected, if prompted), the Toyota/Lexus Enhanced menu displays. Depending on the protocol used to communicate with your vehicle, the Toyota/Lexus Enhanced menu provides options to view:

 Current DTCs, History DTCs or Pending

DTCs

38 OBD2

Using the Scan Tool

VIEWING ENHANCED DTCs

 Current DTCs, Historical DTCs or

Readiness DTCs

1. Use the UP as necessary, to highlight the desired option, then press the ENTER/LD button.

 A “One moment please” message

displays, while the Scan Tool retrieves the selected DTCs.

 If the Scan Tool fails to link to the

vehicle’s computer, a “Linking Failed” message shows on the Scan Tool’s Display.

- Verify the ignition is ON, then press the ENTER/LD to continue.

2. To read the display:

Refer to DISPLAY FUNCTIONS on page 12 for a description of LCD display elements.

 A visible icon indicates that the Scan Tool is being powered

through the vehicle’s DLC connector.

 A visible icon indicates that the Scan Tool is linked to

(communicating with) the vehicle’s computer.

 The upper right hand corner of the

display shows the number of the code currently being displayed, the total number of codes retrieved.

 The Diagnostic Trouble Code (DTC)

and related code definition are shown in the lower section of the LCD display.

I/M MONITOR STATUS icons are not displayed when viewing enhanced DTCs.

 The Scan Tool will display a code only

and DOWN buttons,

button

and buttons, as necessary, to view the

button to return to the

OBD2 39

Using the Scan Tool

ERASING DIAGNOSTIC TROUBLE CODES (DTCs)

3. If more than one code was retrieved press the DTC SCROLL button, as necessary, to display additional codes one at a time.

 Whenever the Scroll function is used to view additional codes,

the Scan Tool’s communication link with the vehicle’s computer disconnects. To re-establish communication, press the LINK button again.

4. When the last retrieved DTC has been displayed and the DTC SCROLL

Toyota/Lexus Enhanced menu.

 To view additional enhanced DTCs, repeat steps 1 through 4,

above.

 To exit the enhanced mode, use the UP and DOWN

buttons, as necessary, to select Exit from the Toyota/Lexus Enhanced menu, then press the ENTER/LD Scan Tool returns to the OBD2 DTC screen.

ERASING DIAGNOSTIC TROUBLE CODES (DTCs)

When the Scan Tool’s ERASE function is used to erase DTCs from the vehicle's on-board computer, "Freeze Frame" data and manufacturer-specific enhanced data are also erased.

If you plan to take the vehicle to a Service Center for repair, DO NOT erase the codes from the vehicle's computer. If the codes are erased, valuable information that might help the technician troubleshoot the problem will also be erased.

Erase DTCs from the computer's memory as follows:

When DTCs are erased from the vehicle's computer memory, the I/M Readiness Monitor Status program resets the status of all Monitors to a not run "flashing" condition. To set all of the Monitors to a DONE status, an OBD2 Drive Cycle must be performed. Refer to your vehicle's service manual for information on how to perform an OBD2 Drive Cycle for the vehicle under test.

The Scan Tool must be connected to the vehicle’s DLC to erase the codes from the computer’s memory. If you press the ERASE when the Scan Tool is not connected to the vehicle’s DLC, the erase instruction screen displays.

The Erase function can be performed only from the OBD2 DTC screen. The Erase function cannot be performed while the Scan Tool is in “enhanced” mode.

button is pressed, the Scan Tool returns to the

button. The

button

40 OBD2

Using the Scan Tool

I/M READINESS TESTING

1. If not connected already, connect the Scan Tool to the vehicle's DLC, and turn the ignition "On.” (If the Scan Tool is already connected and linked to the vehicle's computer, proceed directly to step 4. If not, continue to step 2.)

2. Turn the ignition on. DO NOT start the engine.

Press and release the POWER/LINK button to establish communication with the vehicle's computer.

3. Press and release the ERASE button. A confirmation message shows on the display.

- If you are sure you want to proceed press the ERASE erase DTCs from the vehicle’s computer.

- If you do not want to continue with the erase process, press the POWER/LINK erase mode.

4. If you chose to erase DTCs, a progress screen displays while the erase function is in progress.

 If the erase was successful, a

confirmation message shows on the display. Press the DTC SCROLL

button to return to the DTC

screen.

 If the erase was not successful, an

advisory message shows on the display. Verify that the Scan Tool is properly connected to the vehicle’s DLC and that the ignition is on, then repeat steps 2 and 3, above.

Erasing DTCs does not fix the problem(s) that caused the code(s) to be set. If proper repairs to correct the problem that caused the code(s) to be set are not made, the code(s) will appear again (and the check engine light will illuminate) as soon as the vehicle is driven long enough for its Monitors to complete their testing.

button again to

button to exit the

I/M READINESS TESTING

I/M is an Inspection and Maintenance program legislated by the Government to meet federal clean-air standards.

OBD2 41

Using the Scan Tool

I/M READINESS TESTING

The program requires that a vehicle be taken periodically to an Emissions Station for an "Emissions Test" or "Smog Check,” where the emissions-related components and systems are inspected and tested for proper operation. Emissions Tests are generally performed once a year, or once every two years.

On OBD2 systems, the I/M program is enhanced by requiring vehicles to meet stricter test standards. One of the tests instituted by the Federal Government is called I/M 240. On I/M 240, the vehicle under test is driven under different speeds and load conditions on a dynamometer for 240 seconds, while the vehicle's emissions are measured.

Emissions tests vary depending on the geographic or regional area in which the vehicle is registered. If the vehicle is registered in a highly urbanized area, the I/M 240 is probably the type of test required. If the vehicle is registered in a rural area, the stricter “dynamometer type” test may not be required.

I/M Readiness Monitors

I/M Readiness shows whether the various emissions-related systems on the vehicle are operating properly and are ready for Inspection and Maintenance testing.

State and Federal Governments enacted Regulations, Procedures and Emission Standards to ensure that all emissions-related components and systems are continuously or periodically monitored, tested and diagnosed whenever the vehicle is in operation. It also requires vehicle manufacturers to automatically detect and report any problems or faults that may increase the vehicle's emissions to an unacceptable level.

The vehicle's emissions control system consists of several components or sub-systems (Oxygen Sensor, Catalytic Converter, EGR, Fuel System, etc.) that aid in reducing vehicle emissions.

To have an efficient Vehicle Emission Control System, all the emissionsrelated components and systems must work correctly whenever the vehicle is in operation.

To comply with State and Federal Government regulations, vehicle manufacturers designed a series of special computer programs called "Monitors" that are programmed into the vehicle's computer. Each of these Monitors is specifically designed to run tests and diagnostics on a specific emissions-related component or system (Oxygen Sensor, Catalytic Converter, EGR Valve, Fuel System, etc.) to ensure their proper operation. Currently, there are a maximum of eleven Monitors available for use.

Each Monitor has a specific function to test and diagnose only its designated emissions-related component or system. The names of the Monitors (Oxygen Sensor Monitor, Catalyst Monitor, EGR Monitor, Misfire Monitor, etc.) describe which component or system each Monitor is designed to test and diagnose.

42 OBD2

Using the Scan Tool

I/M READINESS TESTING

Emissions Inspection and Maintenance (I/M) Readiness

Monitor Status Information

I/M Readiness Monitor Status shows which of the vehicle's Monitors have run and completed their diagnosis and testing, and which ones have not yet run and completed testing and diagnosis of their designated sections of the vehicle's emissions system.

 If a Monitor was able to meet all the conditions required to enable it

to perform the self-diagnosis and testing of its assigned engine system, it means the monitor "HAS

 If a Monitor has not yet met all the conditions required for it to

perform the self-diagnosis and testing of its assigned engine system; it means the Monitor "HAS NOT

The Monitor Run/Not Run status does not show whether or not a problem exists in a system. Monitor status only indicates whether a particular Monitor has or has not run and performed the self-diagnosis and testing of its associated system.

RUN.”

Performing I/M Readiness Quick Check

When a vehicle first comes from the factory, all Monitors indicate a “HAVE RUN” status. This indicates that all Monitors have run and completed their diagnostic testing. The “HAVE RUN” status remains in the computer's memory, unless the Diagnostic Trouble Codes are erased or the vehicle's computer memory is cleared.

The Scan Tool allows you to retrieve Monitor/System Status Information to help you determine if the vehicle is ready for an Emissions Test (Smog Check). In addition to retrieving Diagnostic Trouble Codes, the Scan Tool also retrieves Monitor Run/Not Run status. This information is very important since different areas of the state/country have different emissions laws and regulations concerning Monitor Run/Not Run status.

Before an Emissions Test (Smog Check) can be performed, your vehicle must meet certain rules, requirements and procedures legislated by the Federal and state (country) governments where you live.

1. In most areas, one of the requirements that must be met before a vehicle is allowed to be Emissions Tested (Smog Checked) is that the vehicle does not have any Diagnostic Trouble Codes present (with the exception of PENDING Diagnostic Trouble Codes).

2. In addition to the requirement that no Diagnostic Trouble Codes be present, some areas also require that all the Monitors that a particular vehicle supports indicate a "Has Run" status condition before an Emissions Check may be performed.

3. Other areas may only require that some (but not all) Monitors indicate a "Has Run" status before an Emissions Test (Smog Check) may be performed.

OBD2 43

Using the Scan Tool

I/M READINESS TESTING

Monitors with a "Has Run" status indicate that all the required conditions they needed to perform diagnosis and testing of their assigned engine area (system) have been met, and all diagnostic testing has completed successfully.

Monitors with a "Has Not Run" status have not yet met the conditions they need to perform diagnosis and testing of their assigned engine area (system), and have not been able to perform diagnostic testing on that system.

The green, yellow and red LEDs provide a quick way to help you determine if a vehicle is ready for an Emissions Test (Smog Check). Follow the instructions below to perform the Quick Check.

Perform the CODE RETRIEVAL PROCEDURE as described on page 22, then interpret the LED indications as follows:

Interpreting I/M Readiness Test Results

1. GREEN LED - Indicates that all engine

systems are "OK" and operating normally (all Monitors supported by the vehicle have run and performed their self-diagnostic testing). The vehicle is ready for an Emissions Test (Smog Check), and there is a good possibility that it can be certified.

2. YELLOW LED - Determine from the CODE RETRIEVAL PROCEDURE (page 22) which of the two possible conditions is causing the yellow LED to light.

 If a "PENDING" Diagnostic Trouble

Code is causing the yellow LED to light, it is possible that the vehicle will be allowed to be tested for emissions and certified. Currently, most areas (states / countries) will allow an Emissions Test (Smog Check) to be performed if the only code in the vehicle's computer is a "PENDING" Diagnostic Trouble Code.

 If the illumination of the Yellow LED

is being caused by monitors that “have not run” their diagnostic testing, then the issue of the vehicle being ready for an Emissions Test (Smog Check) depends on the emissions regulations and laws of your local area.

44 OBD2

Using the Scan Tool

I/M READINESS TESTING

- Some areas require that all Monitors indicate a "Has Run" status before they allow an Emissions Test (Smog Check) to be performed. Other areas only require that some, but not all, Monitors have run their self-diagnostic testing before an Emissions Test (Smog Check) may be performed.

- From the code retrieval procedure, determine the status of each Monitor (a solid Monitor icon shows Monitor "Has Run" status, a flashing Monitor icon indicates "Has Not Run" status). Take this information to an emissions professional to determine (based on your test results) if your vehicle is ready for an Emissions Test (Smog Check).

3. RED LED - Indicates there is a problem with one or more of the vehicle's systems. A vehicle displaying a red LED is definitely not ready for an Emissions Test (Smog Check). The red LED is also an indication that there are Diagnostic Trouble Code(s) present (displayed on the Scan Tool's screen). The Multifunction Indicator (Check Engine) Lamp on the vehicle's instrument panel will light steady. The problem that is causing the red LED to light must be repaired before an Emissions Test (Smog Check) can be performed. It is also suggested that the vehicle be inspected/repaired before driving the vehicle further.

If the Red LED was obtained, there is a definite problem present in the system(s). In these cases, you have the following options.

 Repair the vehicle yourself. If you are going to perform the

repairs yourself, proceed by reading the vehicle service manual and following all its procedures and recommendations.

 Take the vehicle to a professional to have it serviced. The

problem(s) causing the red LED to light must be repaired before the vehicle is ready for an Emissions Test (Smog Check).

Using the I/M Readiness Monitor Status to Confirm a Repair

The I/M Readiness Monitor Status function can be used (after repair of a fault has been performed) to confirm that the repair has been performed correctly, and/or to check for Monitor Run Status. Use the following procedure to determine I/M Readiness Monitor Status:

1. Using retrieved Diagnostic Trouble Codes (DTCs) and code definitions as a guide, and following manufacturer's repair procedures, repair the fault or faults as instructed.

2. After the fault or faults have been repaired, connect the Scan Tool to the vehicle's DLC and erase the code or codes from the vehicle's computer memory.

 See page 40 for procedures for ERASING DIAGNOSTIC

TROUBLE CODES (DTCs) from the vehicle's on-board computer.

 Write the codes down on a piece of paper for reference before

erasing.

OBD2 45

Using the Scan Tool

I/M READINESS TESTING

3. After the erase procedure is performed, most of the Monitor icons on the Scan Tool’s display will be flashing. Leave the Scan Tool connected to the vehicle, and perform a Trip Drive Cycle for each "flashing" Monitor:

Misfire, Fuel and Comprehensive Component Monitors run continuously and their icons will always be on solid, even after the erase function is performed.

 Each DTC is associated with a specific Monitor. Consult the

vehicle's service manual to identify the Monitor (or Monitors) associated with the faults that were repaired. Follow the manufacturer's procedures to perform a Trip Drive Cycle for the appropriate Monitors.

 While observing the Monitor icons on the Scan Tool’s display,

perform a Trip Drive Cycle for the appropriate Monitor or Monitors.

If the vehicle needs to be driven in order to perform a Trip Drive Cycle, ALWAYS have a second person help you. One person should drive the vehicle while the other person observes the Monitor icons on the Scan Tool for Monitor RUN status. Trying to drive and observe the Scan Tool at the same time is dangerous, and could cause a serious traffic accident.

4. When a Monitor's Trip Drive Cycle is performed properly, the Monitor icon on the Scan Tool’s display changes from "flashing" to "solid,” indicating that the Monitor has run and finished its diagnostic testing.

 If, after the Monitor has run, the MIL on the vehicle's dash is not lit, and

no stored or pending codes associated with that particular Monitor are present in the vehicle's computer, the repair was successful.

 If, after the Monitor has run, the MIL on the vehicle's dash lights

and/or a DTC associated with that Monitor is present in the vehicle's computer, the repair was unsuccessful. Refer to the vehicle's service manual and recheck repair procedures.

46 OBD2

Live Data Mode

VIEWING LIVE DATA

The OBD2 Scan Tool is a special diagnostic tool that communicates with the vehicle's computer. The Scan Tool lets you view and/or "capture" (record) "real-time" Live Data. This information includes values (volts, rpm, temperature, speed etc.) and system status information (open loop, closed loop, fuel system status, etc.) generated by the various vehicle sensors, switches and actuators.

In effect the Scan Tool lets you view, in "real time", the same signal values generated by the sensors, actuators, switches and/or vehicle system status information used by the vehicle's computer when calculating and conducting system adjustments and corrections.

The real time (Live Data) vehicle operating information (values/status) that the computer supplies to the Scan Tool for each sensor, actuator, switch, etc. is called Parameter Identification (PID) Data.

Each PID (sensor, actuator switch, status, etc.) has a set of operating characteristics and features (parameters) that serve to identify it. The Scan Tool displays this information for each sensor, actuator, switch or status that is supported by the vehicle under test.

WARNING: If the vehicle must be driven in order to perform a troubleshooting procedure, ALWAYS have a second person help you. One person should drive the vehicle while the other person observes the Scan Tool data. Trying to drive and operate the Scan Tool at the same time is dangerous, and could cause a serious traffic accident.

VIEWING LIVE DATA

1. Follow steps 1 through 7 of the CODE RETRIEVAL PROCEDURE

(page 22) to place the Scan Tool in "Code Retrieval" mode.

2. Press and release the ENTER/LD button to place the Scan Tool in "Live Data" mode.

3. Real-time Live Data (PID) information supported by the vehicle under test displays.

Remember, what you are viewing is "real-time" Live Data. The values (volts, rpm, temperature, vehicle speed, system status etc) for the various PIDS displayed may change as the vehicle's operating conditions change.

4. A vehicle usually supports several PIDs, however, only a limited amount of PID data can be displayed on the screen at one time. If additional PID data is available, a small arrow will be shown on the display. Use the the UP

and DOWN buttons, as necessary,

to scroll up or down to view all available PID data.

OBD2 47

Live Data Mode

CUSTOMIZING LIVE DATA (PIDs)

 If communication with the vehicle is

lost while viewing Live Data, a Communication Lost" message shows on the Scan Tool's display.

5. If you experience vehicle problems, view and/or compare the Live Data (PID) information displayed on the Scan Tool to specifications in the vehicle's repair manual.

If desired, you can "customize" the Live Data display to show only those PIDs you are interested in viewing. See Customizing Live Data (PIDs) below for details. You may also choose to "capture" (record) Live Data for later viewing. See RECORDING (CAPTURING) LIVE DATA on page 49for details.

6. You can toggle back and forth between the DTC screen (to view DTCs) and Live Data screen (to view PIDs) by alternately pressing and releasing the DTC SCROLL buttons once (the unit will stay linked to the vehicle while toggling between modes). If the DTC SCROLL then the screen will scroll to the next DTC and the tool will be taken out of link.

When toggling from the Live Data to the DTC screen a “one moment please...” message will temporarily display, followed by the DTC screen.

and the ENTER/LD

button is pressed twice,

CUSTOMIZING LIVE DATA (PIDs)

This feature lets you customize the Scan Tool display to show only those PIDs that are of interest at the current time. You can customize the Live Data display by placing the Scan Tool in "Custom Live Data" mode and selecting only the PIDs that you wish to display. To customize the Live Data display, proceed as follows:

1. With the Scan Tool in "Live Data" mode (see VIEWING LIVE DATA on page 47 for details), press and hold the ENTER/LD

button until the "Mode

Selection Menu" appears.

2. Use the UP

and DOWN buttons, as necessary, to highlight “Live Data Menu”, then press the ENTER/LD button.

 The "Live Data Menu" displays.

3. Use the UP

and DOWN buttons, as necessary, to highlight “Custom Live Data”, then press the ENTER/LD button.

48 OBD2

Live Data Mode

RECORDING (CAPTURING) LIVE DATA

 The "Custom Live Data" menu displays, with the first PID in the

menu highlighted.

4. Use the UP to scroll through the available PIDs. When the PID you wish to display is highlighted, press the ENTER/LD button to select it (a "checkmark" will show in the checkbox to the right of the PID to confirm your selection). Repeat the procedure until only the PIDs you want to display have all been selected.

 To deselect a currently selected PID, highlight the PID, then

press the ENTER/LD removed from the checkbox.

5. When you are finished making your selection(s), scroll to the end of the PID list and highlight the word DONE, then press the ENTER/LD

button.

 The Scan Tool is now in "Custom Live Data" mode. Only the

PIDs you selected are shown on the Scan Tools display.

 To toggle between the "Custom Live Data" display and the full

Live Data display, momentarily press the ENTER/LD

6. To exit the "Custom Live Data" mode, press and hold the ENTER/LD

and DOWN buttons

button until the “Mode Selection Menu” displays.

button. The checkmark will be

button.

RECORDING (CAPTURING) LIVE DATA

You can record and save several frames of Live Data information for each PID supported by the vehicle in the Scan Tool's memory. Recorded Live Data can serve as valuable information to help you in the troubleshooting of vehicle problems.

There are two ways that the Scan Tool can "record" Live Data:

 Record by DTC Trigger

 Record by Manual Trigger

If the POWER/LINK

button is pressed at any time while in Live Data mode, any stored (recorded) Live Data will be cleared (erased) from the Scan Tool’s memory.

Record by DTC Trigger

This function automatically records (captures) Live Data information when a DTC sets and saves it in the Scan Tool’s memory. The recorded (captured) data can be a valuable troubleshooting aid, particularly if you are experiencing a fault that is causing a DTC to set.

OBD2 49

Live Data Mode

RECORDING (CAPTURING) LIVE DATA

1. With the Scan Tool in "Live Data" mode (see VIEWING LIVE DATA on page 47 for details), press and hold the ENTER/LD Selection Menu" appears.

2. Use the UP as necessary, to highlight “Live Data Menu”, then press the ENTER/LD button.

 The "Live Data Menu" displays.

3. Use the UP as necessary, to highlight “Record Live Data”, then press the ENTER/LD button.

 The "Record Live Data Menu" dis-

plays.

4. Use the UP and DOWN buttons, as necessary, to highlight Record by DTC trigger, then press the ENTER/LD

button.

5. When the "Record by DTC Trigger" screen displays, select the desired trigger point as follows:

The Scan Tool is capable of recording approximately 20 frames of Live Data. Record by DTC trigger lets you select the point in time at which you wish the Scan Tool to begin recording Live Data. You can set the trigger point to record the 20 frames of data before an event (when the DTC sets), after the event, or in the middle (10 frames before and 10 frames after the event.

 Beginning - records approximately

20 frames of Live Data after the DTC sets.

 Middle - records approximately 10

frames of Live Data before and 10 frames after the DTC sets.

 End - records approximately 20 frames

of Live Data before the DTC sets.

6. Use the UP as necessary, to select the desired trigger point, then press the ENTER/LD

button.

 A "One moment please. . ." message

shows on the display. When the Scan Tool is ready to record Live Data, the "Record Live Data" screen displays.

button until the "Mode

and DOWN buttons,

50 OBD2

Live Data Mode

RECORDING (CAPTURING) LIVE DATA

7. Put the engine in the operating condition that causes the DTC to set.

 If necessary, drive the vehicle until you reach the vehicle speed

at which the problem occurs.

8. When the Scan Tool detects a fault that causes a DTC to set, it automatically records and saves approximately 20 frames of Live Data information in its memory (according to your trigger selection) for each PID supported by the vehicle.

 All three LEDs will blink for three

seconds to indicate that Live Data is being recorded, and a "One moment please..." message shows on the display.

 When recording is complete, a

confirmation screen displays, asking if you would like to view the recorded data. Use the UP DOWN select Yes or No, as desired, then press the ENTER/LD button.

If Yes is selected, the Scan Tool enters "Playback" mode from which you can view a frame-byframe playback of recorded Live Data (see LIVE DATA PLAYBACK on page 53 for details). If No is selected, the display returns to the "Live Data View" mode.

9. You can exit the "Record Live Data Mode" at any time by pressing and holding the ENTER/LD Menu" displays.

If desired, you can transfer the recorded Live Data information to a personal computer using the optional PC-LINK program (see instructions included with PC-Link for more information).

buttons, as necessary, to

and

button until the "Mode Selection

Record by Manual Trigger

This option lets you select the precise time at which the Live Data recording will occur. Record by Manual Trigger can be a very valuable diagnostic tool when troubleshooting intermittent problems that do not meet the requirements for a DTC to set. Even though a DTC is not present, the intermittent problems will sometimes manifest themselves briefly, for a few fractions of a second and/or only at certain vehicle speeds or vehicle operating conditions.

1. With the Scan Tool in "Live Data" mode (see VIEWING LIVE DATA on page 47 for details), press and hold the ENTER/LD

button until the "Mode

Selection Menu" appears.

OBD2 51

Live Data Mode

RECORDING (CAPTURING) LIVE DATA

2. Use the UP and DOWN buttons, as necessary, to highlight “Live Data Menu”, then press the ENTER/LD button.

 The "Live Data Menu" displays.

3. Use the UP as necessary, to highlight “Record Live Data”, then press the ENTER/LD button.

 The "Record Live Data Menu" dis-

plays.

4. Use the UP as necessary, to highlight “Record by manual trigger”, then press the

ENTER/LD button.

5. When the "Record by Manual Trigger" screen displays, select the

desired trigger point as follows:

The Scan Tool is capable of recording approximately 20 frames of Live Data. Record by DTC trigger lets you select the point in time at which you wish the Scan Tool to begin recording Live Data. You can set the trigger point to record the 20 frames of data before an event (when the DTC was set), after the event, or in the middle (10 frames before and 10 frames after the event.

 Beginning - records approximately

20 frames of Live Data after the ENTER/LD

 Middle - records approximately 10

frames of Live Data before and 10 frames after the ENTER/LD button was pressed.

 End - records approximately 20 frames of Live Data before the

ENTER/LD

6. Use the UP desired trigger point, then press the ENTER/LD

 A "One moment please. . ."

message shows on the display. When the Scan Tool is ready to record Live Data, the "Record Live Data" screen displays.

7. Put the engine in the operating condition where the problem manifests itself.

and DOWN buttons,

button was pressed.

and DOWN buttons, as necessary, to select the

button.

52 OBD2

Live Data Mode

LIVE DATA PLAYBACK

 If necessary, drive the vehicle until you reach the vehicle speed

at which the problem occurs.

8. When the problem occurs, press and release the ENTER/LD

 All three LEDs will blink for three

seconds to indicate that Live Data is being recorded, and a "One moment please. . ." message shows on the display.

 When recording is complete, a confirmation screen displays,

asking if you would like to view the recorded data. Use the UP

as desired, then press the ENTER/LD

If Yes is selected, the Scan Tool enters "Playback" mode from which you can view a frame-by-frame playback of recorded Live Data (see LIVE DATA PLAYBACK on page 53 for details). If No is selected, the display returns to the "Live Data View" mode.

9. You can exit the "Record Live Data Mode" at any time by pressing and holding the ENTER/LD Menu" displays.

If desired, you can transfer the recorded Live Data information to a personal computer using the optional PC-LINK program (see instructions included with PC-Link for more information).

button.

and DOWN buttons, as necessary, to select Yes or No,

button.

button until the "Mode Selection

Important Information

1. When Live Data capture is initiated, the green, yellow and red LEDs

on the Scan Tool will flash three times to indicate that Live Data is being saved to the Scan Tool's memory.

2. When you are LINKED to a vehicle and you are in the “Live Data View mode”, you can toggle between “Live Data View” mode and “DTC view” mode by alternately pressing and releasing the DTC SCROLL

or the ENTER/LD buttons. The Scan Tool will stay linked to the vehicle’s computer during this process. However, if the DTC SCROLL

button is pressed twice the DTC screen will be advanced to the next DTC screen and the Scan Tool will be taken out of link.

LIVE DATA PLAYBACK

Once Live Data has been recorded, it is saved in the Scan Tool's memory. You can view recorded Live Data immediately after recording by selecting Yes from the Record Live Data confirmation screen (see RECORDING (CAPTURING) LIVE DATA on page 49 for more information), or you can view it later using the "Playback" function.

OBD2 53

Live Data Mode

LIVE DATA PLAYBACK

1. With the Scan Tool not connected to a vehicle, press the POWER/LINK

 The "To Link" screen shows on the

Scan Tool's display.

2. Press the ENTER/LD place the Scan Tool in "Live Data Playback" mode.

 The display shows the recorded

Live Data, beginning with the "trigger" frame.

When you select Yes from the Record Live Data confirmation screen, the Scan Tool enters the "Live Data Playback" mode, and the display shows the recorded Live Data, beginning with the "trigger" frame.

 A vehicle usually supports several PIDs, however, only a limited

amount of PID data can be displayed on the screen at one time. If additional PID data is available, a small arrow will be shown on the display. Use the UP necessary, to scroll up or down to view all available PID data.

 When viewing recorded Live Data, look for any irregularities in

any of the PID values/signal information (LTFT %, RPM, MAP, TEMP, etc.). If any PIDs are not within specification, or irregularities are detected, follow the procedures in the vehicle's service repair manual to perform additional troubleshooting and repair.

When recorded Live Data is played back, all available PIDs are shown, even if you have customized the Live Data selections.

If there is no Live Data currently stored in the Scan Tool's memory, an advisory message shows on the display. Press the DTC SCROLL mode.

3. When you have viewed all PID information for the current frame of Live Data, use the DOWN list. Highlight Next Frame or Previous Frame, as desired, then press the ENTER/LD

4. When you have finished viewing the recorded Live Data, exit the “Live Data Playback” mode using the appropriate procedure shown below:

 If the Scan Tool is connected to a vehicle, use the DOWN

button to scroll to the end of the PID list, highlight Exit Playback, then press the ENTER/LD

 If the Scan Tool is not connected to a vehicle, press the DTC

SCROLL

button.

button to

and DOWN buttons, as

button to exit the "Live Data Playback"

button to scroll to the end of the PID

button.

54 OBD2

Additional Tests

O2 SENSOR TEST

In addition to retrieving Diagnostic Trouble Code (DTC) and viewing Live Data, you can use the Scan Tool to perform additional diagnostic tests, and to view diagnostic and vehicle information stored in your vehicle's on-board computer.

Additional tests are accessed through the "Mode Selection Menu." To access the "Mode Selection Menu", place the Scan Tool in "Live Data" mode (see VIEWING LIVE DATA on page 47 for details), then press and hold the ENTER/LD until the "Mode Selection Menu" appears.

The following functions are available from the "Mode Selection Menu":

 Live Data Menu - Displays the "Live Data Menu" from which you

can choose to record, customize and play back Live Data (see the Live Data Mode section beginning on page 47 for more information)

 O2 Sensor Test - Retrieves and displays O2 sensor monitor test

esults from your vehicle's on-board computer.

 Non-Continuous Test - Retrieves and displays test results for

emission-related powertrain components and systems that are not continuously monitored.

 System Test - Performs a leak test for the vehicle's EVAP system.

 Vehicle Information - Retrieves the vehicle's VIN number,

calibration ID(s) and other related information, and lets you view a listing of available modules for the vehicle.

button

O2 SENSOR TEST

OBD2 regulations require that applicable vehicles monitor and test operation of the oxygen (O2) sensors to identify problems that can affect fuel efficiency and vehicle emissions. These tests are performed automatically when engine operating conditions are within predefined limits. Results of these tests are stored in the on-board computer's memory.

The O2 Sensor Test function lets you retrieve and view O2 sensor monitor test results for the most recently completed tests from your vehicle's on-board computer.

Vehicles are equipped with multiple O2 sensors. O2 sensors are installed both upstream of (before) and downstream of (after) the exhaust system Catalytic Converters. The name of an O2 sensor identifies its location in the exhaust system. The name of each O2 sensor is made up of three parts:

O2S XX YY -or- O2S X Y

 O2S -this is the basic designation for all O2 sensors.

OBD2 55

Additional Tests

O2 SENSOR TEST

 X or XX - These characters identify the location of the O2 sensor in

relation to a cylinder bank. An O2 sensor for cylinder bank 1 is identified by the designation “1” or "B1"; a sensor for cylinder bank 2 is identified as “2” or "B2."

”Bank One” indicates the side of the engine where cylinder number one is located (V-type engines). Bank Two is opposite of Bank One.

 Y or YY - These characters identity the location of the O2 sensor in

relation to the exhaust system catalyst. An O2 sensor located upstream of the catalyst is identified by the designation”1” or "S1", a sensor located downstream of the Catalytic Converter is identified as “2” or "S2."

For example, O2S12 or O2SB1S2 is the designation for the downstream O2 sensor for cylinder bank 1.

The Scan Tool does not perform O2 sensor tests, but retrieves results from the most recently performed O2 sensor tests from the on-board computer's memory. You may retrieve O2 sensor test results for only one test of one sensor at any given time.

1. From the "Mode Selection Menu", use the UP necessary, to highlight O2 Sensor Test, then press the ENTER/LD

 The "Select Sensor" screen displays.

The screen shows all O2 sensors applicable to the vehicle under test.

If O2 sensor tests are not supported by the vehicle under test, an advisory message shows on the Scan Tool's display. Press the ENTER/LD return to "Live Data" mode.

2. Use the UP as necessary, to highlight the O2 sensor for which you wish to view test results, then press the ENTER/LD button.

3. A "One moment please..." message displays while the request is sent to the vehicle's on-board computer.

4. When test results have been retrieved, data for the selected sensor test will show on the Scan Tool's display.

5. When you have finished viewing the retrieved test data, scroll to the end of the display to select Exit, then press the ENTER/LD button to return to the "Select Test" screen.

and DOWN buttons, as

button.

button to

and DOWN buttons,

56 OBD2

Additional Tests

NON-CONTINUOUS TEST

The Non-Continuous Test function retrieves and displays test results for emission-related powertrain components and systems that are not continuously monitored. The tests available are determined by the vehicle manufacturer.

The Scan Tool does not perform non-continuous test, but retrieves results from the most recently performed tests from the on-board computer’s memory. You may retrieve noncontinuous test results for only one test at any given time.

1. From the "Mode Selection Menu", use the UP necessary, to highlight Non-

Continuous Test, then press the ENTER/LD

 The “Select Test” screen displays.

The screen shows all tests applicable to the vehicle under test. Refer to the vehicle’s service repair manual for information related to non-continuous tests.

If non-continuous tests are not supported by the vehicle under test, an advisory message shows on the Scan Tool's display. Press the ENTER/LD the Mode Selection menu.

2. Use the UP as necessary, to highlight the desired test, then press the ENTER/LD button.

3. A “One moment please. . .” message diplays while the request is sent to the vehicle’s on-board computer.

4. When test results have been retrieved, data for the selected test will show on the Scan Tool’s display. The display shows the following information:

 Test ID number

 Module ID number

 Component ID number

 Min or Max test limit

 Test Value and status

and DOWN buttons, as

button.

button to return to

and DOWN buttons,

Only one test limit, either Min or Max, is shown for any given test.

OBD2 57

Additional Tests

SYSTEM TEST

Status is calculated by the Scan Tool by comparing the Test Value against the displayed test limit (either Min or Max). Status is shown as either Low, High or OK.

5. When you have finished viewing the retrieved test data, scroll to the end of the display to select Exit, then press the ENTER/LD button to return to the “Select Test” screen.

SYSTEM TEST

The System Test function lets you initiate a leak test for the vehicle's EVAP system.

The Scan Tool does not perform the leak test, but signals to vehicle's on-board computer to initiate the test. The vehicle manufacturer determines the criteria and method for stopping the test once it has been started. BEFORE using the System Test function, refer to the vehicle's service repair manual to determine the procedures necessary to stop the test.

1. From the "Mode Selection Menu", use the UP necessary, to highlight System Test, then press the ENTER/LD

 The "System Test Menu" displays.

2. Use the UP as necessary, to highlight EVAP Leak Test, then press the ENTER/LD button.

3. A "One moment please..." message displays while the request is sent to the vehicle's on-board computer.

Some vehicle manufacturers do not allow Scan Tools or other external devices to control vehicle systems. If the EVAP Leak Test is not supported by the vehicle under test, an advisory message shows on the Scan Tool's display. Press the ENTER/LD return to the System Test menu.

4. When the EVAP leak test has been initiated by the vehicle's on-board computer, a confirmation message shows on the Scan Tool's display. Press the ENTER/LD "Live Data" mode.

and DOWN buttons as

button.

and DOWN buttons,

button to

button to return to

58 OBD2

Additional Tests

VEHICLE INFORMATION

The Vehicle Information function offers two options for retrieving reference information for the vehicle under test; Vehicle ID and

Available Modules.

Retrieving Vehicle ID Information

The Vehicle ID function is applicable to model year 2000 and newer OBD2-compliant vehicles.

The Scan Tool can retrieve a list of information (provided by the vehicle manufacturer), unique to the vehicle under test, from the vehicle's onboard computer. This information may include:

 The vehicle's VIN number

 The control module identification number

 The vehicle's calibration ID(s). These IDs uniquely identify the

software version(s) for the vehicle's control module(s).

 The Vehicle's Calibration Verification Number(s) (CVNs) required by

ODB2 regulations. CVNs are used to determine if emission-related calibrations for the vehicle under test have been changed. One or more CVNs may be returned by the vehicle's computer.

1. From the “Mode Selection Menu”, use the UP necessary, to highlight Vehicle Information, then press the ENTER/LD

button.

 The “Vehicle Information Menu” dis-

plays.

If the Vehicle Information function is not supported by the vehicle under test, an advisory message shows on the Scan Tool’s display. Press the ENTER/LD to return to the Mode Selection menu.

2. Use the UP as necessary, to highlight Vehicle ID, then press the ENTER/LD

and DOWN buttons, as

button

and DOWN buttons,

button.

3. A "One moment please..." message displays while the requested information is retrieved from the vehicle's computer.

The first time the Vehicle ID function is used, it may take several minutes

to retrieve the information from the vehicle's

computer.

OBD2 59

Additional Tests

VEHICLE INFORMATION

4. When the retrieval process is completed, the vehicle ID information is shown on the Scan Tool's display. Use the UP and DOWN to view the entire list.

5. When you have finished viewing the retrieved vehicle ID information, press the ENTER/LD "Live Data" mode.

Viewing Available Modules

The Scan Tool can retrieve a list of modules supported by the vehicle under test.

1. From the “Mode Selection Menu”, use the UP necessary, to highlight Vehicle Information, then press the ENTER/LD

button.

 The “Vehicle Information Menu” dis-

plays.

If the Vehicle Information function is not supported by the vehicle under test, an advisory message shows on the Scan Tool’s display. Press the ENTER/LD to return to the “Live Data” mode.

2. Use the UP as necessary, to highlight Available Modules, then press the ENTER/LD button.

3. A "One moment please..." message displays while the requested information is retrieved from the vehicle's computer.

4. When the retrieval process is completed, a complete list of modules supported by the vehicle under test is shown on the Scan Tool's display. Use the UP DOWN view the entire list.

5. When you have finished viewing the list of available modules, press the ENTER/LD Data" mode.

buttons, as necessary,

button to return to

and DOWN buttons, as

button

and DOWN buttons,

and

buttons, as necessary, to

button to return to "Live

60 OBD2

Generic (Global) OBD2 PID List

The following is a list of Generic (Global) PIDs and their descriptions.

Tool Display

ACC Pedal D % XXX.X Accelerator Pedal Position D ACC Pedal E % XXX.X Accelerator Pedal Position E ACC Pedal F % XXX.X Accelerator Pedal Position F Air Status - UPS, DNS,

Ambient *C /

Aux Input Status BARO kPa

Calc LOAD % XXX.X Calculated LOAD Value CAT Temp 11 *C /

CAT Temp 12 *C /

CAT Temp 21 *C /

CAT Temp 22 *C /

Command EGR Command EVAP Command TAC Dist DTC Clr km

Dist MIL ON km

ECT *C /

ECU Volts V XX.XXX Control Module Voltage EGR Error % XXX.X EGR Error Eng RPM min XXXXX Engine RPM EQ Ratio - X.XXX Commanded Equivalence Ratio EQ Ratio 11 - X.XXX Bank 1 - Sensor 1 Equivalence

EQ Ratio 12 - X.XXX Bank 1 - Sensor 2 Equivalence

EQ Ratio 13 - X.XXX Bank 1 - Sensor 3 Equivalence

EQ Ratio 14 - X.XXX Bank 1 - Sensor 4 Equivalence

Unit Value PID Description

OFF XXX Ambient Air Temperature

- On / Off Auxiliary Input Status

XXX /

/inHg

XX.X

XXXX.X Catalyst Temperature Bank 1-

XXXX.X Catalyst Temperature Bank 2-

*F % XXX.X Commanded EGR

% XXX.X Commanded Evaporative Purge

% XXX.X Commanded Throttle Actuator

XXXXX Distance since DTC Cleared

/mile

XXXXX Distance Traveled while MIL ON

/mile

XXX / XXX Engine Coolant Temp

Commanded Secondary Air Status

Barometric Pressure

Sensor 1

Sensor 2

Sensor 1

Sensor 2

Ratio

OBD2 61

Generic (Global) OBD2 PID List

Tool Display Unit Value PID Description

EQ Ratio 21 - X.XXX Bank 2 - Sensor 1 Equivalence

EQ Ratio 22 - X.XXX Bank 2 - Sensor 2 Equivalence

EQ Ratio 23 - X.XXX Bank 2 - Sensor 3 Equivalence

EQ Ratio 24 - X.XXX Bank 2 - Sensor 4 Equivalence

EVAP Press Pa

H2O

FP / Vac kPa

/PSI Fuel Level % XXX.X Fuel Level Input Fuel Press kPa

/PSI Fuel Press kPa

/PSI Fuel Sys 1 - OL Fuel System 1 Status Fuel Sys 1 - CL Fuel System 1 Status Fuel Sys 1 - OL-Drive Fuel System 1 Status Fuel Sys 1 - OL-Fault Fuel System 1 Status Fuel Sys 1 - CL-Fault Fuel System 1 Status Fuel Sys 2 - OL Fuel System 2 Status Fuel Sys 2 - CL Fuel System 2 Status Fuel Sys 2 - OL-Drive Fuel System 2 Status Fuel Sys 2 - OL-Fault Fuel System 2 Status Fuel Sys 2 - CL-Fault Fuel System 2 Status IAT *C /

LOAD Value % XXX.X Absolute Load Value LTFT B1 % XXX.X Long Term Fuel Trim-Bank 1 LTFT B2 % XXX.X Long Term Fuel Trim-Bank 2 LTFT B3 % XXX.X Long Term Fuel Trim-Bank 3 LTFT B4 % XXX.X Long Term Fuel Trim-Bank 4 MAF g/s ;l

b/min

MAP kPa

/PSI MIL On Time hrs,

min

Monitor Status - ICONS on

O2S B1 S1 V X.XXX Bank 1 - Sensor 1 O2S B1 S1 mA X.XXX Bank 1 - Sensor 1 O2S Current

62 OBD2

XXXX.XX

/in

/XX.XXX

XXXX.XXX

/XXX.X

XXX /

XX.X

XXXXX

/XXXX.X

XXX / XXX Intake Air Temperature

XXX.XX

/XXXX.X

XXX /

XX.X

XXXX, XX Engine Run Time while MIL ON

Display

Ratio

Ratio Evap System Vapor Pressure

Fuel Rail Pressure relative toVacuum

Fuel Rail Pressure

Air Flow Rate from Mass Air Flow Sensor

Intake Manifold Absolute Pressure

Monitor Status this Driving Cycle

Generic (Global) OBD2 PID List

Tool Display Unit Value PID Description

mA O2S B1 S1 V V X.XXX Bank 1 - Sensor 1 O2S Voltage O2S B1 S2 V X.XXX Bank 1 - Sensor 2 O2S B1 S2 mA O2S B1 S2 V V X.XXX Bank 1 - Sensor 2 O2S Voltage O2S B1 S3 V X.XXX Bank 1 - Sensor 3 O2S B1 S3 mA O2S B1 S3 V V X.XXX Bank 1 - Sensor 3 O2S Voltage O2S B1 S4 V X.XXX Bank 1 - Sensor 4 O2S B1 S4 mA O2S B1 S4 V V X.XXX Bank 1 - Sensor 4 O2S Voltage O2S B2 S1 V X.XXX Bank 2 - Sensor 1 O2S B2 S1 mA O2S B2 S1 V V X.XXX Bank 2 - Sensor 1 O2S Voltage O2S B2 S2 V X.XXX Bank 2 - Sensor 2 O2S B2 S2 mA O2S B2 S2 V V X.XXX Bank 2 - Sensor 2 O2S Voltage O2S B2 S3 V X.XXX Bank 2 - Sensor 3 O2S B2 S3 mA O2S B2 S3 V V X.XXX Bank 2 - Sensor 3 O2S Voltage O2S B2 S4 V X.XXX Bank 2 - Sensor 4 O2S B2 S4 mA O2S B2 S4 V V X.XXX Bank 2 - Sensor 4 O2S Voltage O2S Location - O2S11 Oxygen Sensor, Bank 1, Sensor 1 O2S Location - O2S12 Oxygen Sensor, Bank 1, Sensor 2 O2S Location - O2S13 Oxygen Sensor, Bank 1, Sensor 3 O2S Location - O2S14 Oxygen Sensor, Bank 1, Sensor 4 O2S Location - O2S21 Oxygen Sensor, Bank 2, Sensor 1 O2S Location - O2S22 Oxygen Sensor, Bank 2, Sensor 1 O2S Location - O2S23 Oxygen Sensor, Bank 2, Sensor 3 O2S Location - O2S24 Oxygen Sensor, Bank 2, Sensor 4 O2S Location - O2S11 Oxygen Sensor, Bank 1, Sensor 1 O2S Location - O2S12 Oxygen Sensor, Bank 1, Sensor 2 O2S Location - O2S21 Oxygen Sensor, Bank 2, Sensor 1 O2S Location - O2S22 Oxygen Sensor, Bank 2, Sensor 2 O2S Location - O2S31 Oxygen Sensor, Bank 3, Sensor 1 O2S Location - O2S32 Oxygen Sensor, Bank 3, Sensor 2 O2S Location - O2S41 Oxygen Sensor, Bank 4, Sensor 1 O2S Location - O2S42 Oxygen Sensor, Bank 4, Sensor 2

mA X.XXX Bank 1 - Sensor 2 O2S Current

mA X.XXX Bank 1 - Sensor 3 O2S Current

mA X.XXX Bank 1 - Sensor 4 O2S Current

mA X.XXX Bank 2 - Sensor 1 O2S Current

mA X.XXX Bank 2 - Sensor 2 O2S Current

mA X.XXX Bank 2 - Sensor 3 O2S Current

mA X.XXX Bank 2 - Sensor 4 O2S Current

OBD2 63

Generic (Global) OBD2 PID List

Tool Display Unit Value PID Description

OBD Support - OBD2 OBD Requirements OBD Support - OBD OBD Requirements OBD Support - OBD and

OBD Support - OBD1 OBD Requirements OBD Support - No OBD OBD Requirements OBD Support - EOBD OBD Requirements OBD Support - EOBD and

OBD Support - EOBD and

OBD Support - EOBD,

OBD Support - JOBD OBD Requirements OBD Support - JOBD and

OBD Support - JOBD and

OBD Support - JOBD,

PTO Status - On / Off Power Take Off Status Rel TPS % XXX.X Relative Throttle Position Spark Adv deg XX Ignition Timing Advance #1

STFT B1 % XXX.X Short Term Fuel Trim-Bank 1 STFT B1 S1 % XXX.X Bank 1 - Sensor 1 STFT B1 S2 % XXX.X Bank 1 - Sensor 2 STFT B1 S3 % XXX.X Bank 1 - Sensor 3 STFT B1 S4 % XXX.X Bank 1 - Sensor 4 STFT B2 % XXX.X Short Term Fuel Trim-Bank 2 STFT B2 S1 % XXX.X Bank 2 - Sensor 1 STFT B2 S2 % XXX.X Bank 2 - Sensor 2 STFT B2 S3 % XXX.X Bank 2 - Sensor 3 STFT B2 S4 % XXX.X Bank 2 - Sensor 4 STFT B3 % XXX.X Short Term Fuel Trim-Bank 3 STFT B4 % XXX.X Short Term Fuel Trim-Bank 4 Time DTC Clr hrs,

min

Time Since

sec XXXX Time Since Engine Start Start TPS % XXX.X Absolute Throttle Position TPS B % XXX.X Absolute Throttle Position B TPS C % XXX.X Absolute Throttle Position C

OBD2

OBD

OBD and

OBD2

EOBD

EOBD and

OBD2

XXXX, XX Time since DTC Cleared

OBD Requirements

Cylinder

64 OBD2

Generic (Global) OBD2 PID List

Tool Display Unit Value PID Description

Veh Speed km/h

mph Warm-up DTC Clr

XXX / XXX Vehicle Speed Sensor

- XXX # Warm-ups since DTC Cleared

OBD2 65

Glossary

GLOSSARY OF TERMS AND ABBREVIATIONS

CARB – California Air Resources Board

CCM – Central Control Module

Computer Control System – An electronic control system, consisting

of an on-board computer and related sensors, switches and actuators, used to ensure peak performance and fuel efficiency while reducing pollutants in the vehicle’s emissions.

DIY – Do-It-Yourself

DLC – Data Link Connector

Drive Cycle – An extended set of driving procedures that takes into

consideration the various types of driving conditions encountered in real life.

Driving Condition – A specific environmental or operation condition under which a vehicle is operated; such as starting the vehicle when cold, driving at steady speed (cruising), accelerating, etc.

DTC(s) – Diagnostic Trouble Code(s)

EGR – Exhaust Gas Recirculation

EPA – Environmental Protection Agency

EVAP – Evaporative Emissions System

Fault Code – See DTCs

Freeze Frame – A digital representation of engine and/or emissions

system conditions present when a fault code was recorded.

FTP – Fuel Tank Pressure

Generic Code – A DTC that applies to all OBD2 compliant vehicles.

I/M Readiness – An indication of whether or not a vehicle’s emissions-

related system are operating properly and are ready for Inspection and Maintenance testing.

I/M Test / Emissions Test / Smog Check – A functional test of a vehicle to determine if tailpipe emissions are within Federal/State/Local requirements.

LCD – Liquid Crystal Display

LED – Light Emitting Diode

LTFT – Long Term Fuel Trim, is a program in the vehicle’s computer

designed to add or subtract fuel from the vehicle to compensate for operating conditions that vary from the ideal A/F ratio (long term).

Manufacturer Specific Code – A DTC that applies only to OBD2 compliant vehicles made by a specific manufacturer.

MIL – Malfunction Indicator Lamp (also referred to as “Check Engine” light

OBD1 – On-Board Diagnostics Version 1 (also referred to as “OBD I”)

66 OBD2

Glossary

GLOSSARY OF TERMS AND ABBREVIATIONS

OBD2 – On-Board Diagnostics Version 2 (also referred to as “OBD II”)

On-Board Computer – The central processing unit in the vehicle’s

computer control system.

PCM – Powertrain Control Module

Pending Code – A code recorded on the “first trip” for a “two-trip” code.

If the fault that caused the code to be set is not detected on the second trip, the code is automatically erased.

PID – Parameter Identification

STFT – Short Term Fuel Trim, is a program in the vehicle’s computer

designed to add or subtract fuel from the vehicle to compensate for operating conditions that vary from the ideal A/F ratio. The vehicle uses this program to make minor fuel adjustments (fine tune) on a short-term basis.

Trip Drive Cycle – Vehicle operation that provides the necessary driving condition to enable a vehicle Monitor to run and complete its diagnostic testing.

VECI – Vehicle Emission Control Information Decal

OBD2 67

Notes

68 OBD2

Warranty and Servicing

LIMITED ONE YEAR WARRANTY

The Manufacturer warrants to the original purchaser that this unit is free of defects in materials and workmanship under normal use and maintenance for a period of one (1) year from the date of original purchase.

If the unit fails within the one (1) year period, it will be repaired or replaced, at the Manufacturer’s option, at no charge, when returned prepaid to the Service Center with Proof of Purchase. The sales receipt may be used for this purpose. Installation labor is not covered under this warranty. All replacement parts, whether new or remanufactured, assume as their warranty period only the remaining time of this warranty.

This warranty does not apply to damage caused by improper use, accident, abuse, improper voltage, service, fire, flood, lightning, or other acts of God, or if the product was altered or repaired by anyone other than the Manufacturer’s Service Center.

The Manufacturer, under no circumstances shall be liable for any consequential damages for breach of any written warranty of this unit. This warranty gives you specific legal rights, and you may also have rights, which vary from state to state. This manual is copyrighted with all rights reserved. No portion of this document may be copied or reproduced by any means without the express written permission of the Manufacturer. THIS WARRANTY IS NOT TRANSFERABLE. For service, send via U.P.S. (if possible) prepaid to Manufacturer. Allow 3-4 weeks for service/repair.

SERVICE PROCEDURES

If you have any questions, require technical support or information on UPDATES and OPTIONAL ACCESSORIES, please contact your local store, distributor or the Service Center.

USA & Canada:

(800) 544-4124 (5:00 AM-6:00 PM, Monday-Friday PST)

All others: (714) 241-6802 (5:00 AM-6:00 PM, Monday-Friday PST)

FAX: (714) 432-7511 (24 hr.)

Web: www.CanOBD2.com

OBD2 69

Innova Electronics Corp.

17291 Mt. Herrmann Street Fountain Valley, CA 92708 Printed in Taiwan

Instruction MRP

#93-0230

Equus 3160 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual