Obdmate Om520 User manual

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OBDMATE OM520

User’s Manual

Table of Contents

1. Safety Precautions and Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2

2. General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.1 On-Board Diagnostics (OBD) II. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.2 Diagnostic Trouble Codes (DTCs) .. . . . . . . . . . . . . . . . . . . . . . . . . . 3

2.3 Location of the Data Link Connector (DLC) . . . . . . . . . . . . . . . . . . . 4

2.4 OBD II Readiness Monitors . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5

2.5 OBD II Monitor Readiness Status. . . . . . . . . . . . . . . . . . . . . . . . . . . 6

2.6 OBD II Definitions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

3. Using the Scan Tool . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.1 Tool Description OM520. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8

3.2 Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.3 Accessories Included . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

3.4 Code Lookup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10

3.5 System Setup . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

3.6 Tool Info. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

3.7 Tool Self - Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

4. OBD II Diagnostics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.1 Read Fault Codes. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

4.2 Eras Fault Codes .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

4.3 View Data Stream. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

4.4 View Freeze Frame . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.5 I/M Readiness . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 24

4.6 Current Trip Info.. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

4.7 O2 Sensor Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

4.8 On-Board Monitor Test . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 28

4.9 EVAP System Test. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

5. Warranty and Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.1 Limited One Year Warranty. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

5.2 Service Procedures . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 34

4.10 Vehicle Info. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

4.11 Modules Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

4.12 Unit Of Measure .. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

1. Safety Precautions and Warnings

To prevent personal injury or dama ge to vehicles and/or the scan tool, read this

instruction manual first and observe the following safety precautions at a

minimum whenever working on a vehicle:

Always perform automotive testing in a safe environment.

Wear safety eye protection that meets ANSI standards.

Keep cl othi ng, hai r, hands , tool s, test equi pment , etc. away from all movi ng or

hot engine parts.

Operate the vehicle in a well ventilated work area: Exhaust gases are

Poisonous.

Put bl oc ks in front of the drive wheel s and nev er leav e the vehicl e una ttend ed

while running tests.

Use extreme caution when working around the ignition coil, distributor cap,

igni tion wires and sp ark pl ugs . Thes e co mpon ent s cr eat e haz ardou s voltage s

when the engine is running.

Put the transmission in PARK (for automat ic transmi ssion) or NEU TRAL (for

manual transmission) and make sure the parking brake is engaged.

Keep a fire extingu isher su itabl e for gas oline/ chemi ca l/electrica l fires nea rby.

Don 't connect or di sconnect an y test equipme nt whi le the ignition is on or the

engine is running.

Keep the scan tool dry, clean, free from oil/water or grease. Use a mild

detergent on a clean cloth to clean the outside of the scan tool, when

Necessary.

Do not attempt to operate or observe the tool while driving a vehicle.

Operating or observing the tool will cause driver distraction and could

cause a fatal accident.

2. General Information

2.1 On-Board Diagnostics (OBD) II

The first generation of On-Board Diagnostics (called OBD I) was

developed by the California Air Resources Board (CARB) and

implemented in 1988 to monitor some of the emission control components

on vehicles. As technology evolved and the desire to improve the On-

Board Diagnostic system increased, a new generation of On-Board

Diagnostic system was developed. This second generation of On-Board

Diagnostic regulations is called "OBD II".

The OBD II system is designed to monitor emission control systems and

key engine components by performing either continuous or periodic tests

of specific components and vehicle conditions. When a problem is

detected, the OBD II system turns on a warning lamp (MIL) on the vehicle

instrument panel to alert the driver typically by the phrase “Check Engine”

or “Service Engine Soon”. The system will also store important information

about the detected malfunction so that a technician can accurately find and

fix the problem. Here below follow three pieces of such valuable

Information:

1) Whether the Malfunction Indicator Light (MIL) is commanded 'on' or

'Off';

2) Which, if any, Diagnostic Trouble Codes (DTCs) are stored;

3) Readiness Monitor status.

2.2 Diagnostic Trouble Codes (DTCs)

OBD II Diagnostic Trouble Codes are codes that are stored by the on-

board computer diagnostic system in response to a problem found in the

vehicle. These codes identify a particular problem area and are intended to

provide you with a guide as to where a fault might be occurring within a

vehicle. OBD II Diagnostic Trouble Codes consist of a five-digit

alphanumeric code. The first character, a letter, identifies which control

system sets the code. The other four characters, all numbers, provide

additional information on where the DTC originated and the operating

conditions that caused it to be set. Below is an example to illustrate the

structure of the digits:

DTC Example

P 0 5 2 0

Systems

B = Body

C = Chassis

P = Powertrain

U = Network

Last two digits identify individual

component within the system

Code Type

Generic (SAE):

Manufacturer Specific:

P1, P2

B1, B2

C1, C2

U1, U2

Sub-systems

1 = Fuel and air metering

2 = Fuel and air metering

3 = Ignition system or engine misfire

4 = Auxiliary emissions controls

5 = Vehicle speed control and idle controls

6 = Computer output circuits

7 = Transmission controls

Figure 1-2: Explanation of a diagnostic trouble code.

2.3 Location of the Data Link Connector (DLC)

The DLC (Data Link Connector or Diagnostic Link Connector) is the

standardized 16-cavity connector where diagnostic scan tools interface

with the vehicle's on-board computer. The DLC is usually located 12

inches from the center of the instrument panel (dash), under or around the

driver's side for most vehicles. If the Data Link Connector is not located

under the dashboard, a label should be there revealing its location. For

some Asian and European vehicles, the DLC is located behind the ashtray

and the ashtray must be removed to access the connector. If the DLC

cannot be found, refer to the vehicle's service manual for the location.

Figure 1-3: The DLC connector (left) can be found in the area of

the car interior seen at right (black arrow).

2.4 OBD II Readiness Monitors

Readiness Monitors are indicators used to find out if all of the emissions

components have been evaluated by the OBD II system. They are running

periodic tests on specific systems and components to ensure that they are

performing within allowable limits.

currently, there are eleven OBD Readiness Monitors (or l/M Monitors)II

defined by the U.S. Environmental Protection Agency (EPA). Not all

monitors are supported by all vehicles and the exact number of monitors in

any vehicle depends on the motor vehicle manufacturer’s emissions

control strategy.

Comtinuous Monitors – Some of the vehicle components or systems are

continuously tested by the vehicle’s OBD system, while others are testedII

only under specific vehicle operating conditions. The continuously

monitored components listed below are always ready:

1. Misfire

2. Fuel System

3. Comprehensive Components (CCM)

Once the vehicle is running, the OBD system is continuously checkingII

the above components, monitoring key engine sensors, watching for

engine misfire, and monitoring fuel demands.

Non-Continuous Monitors – Unlike the continuous monitors, many

emissions and engine system components require the vehicle to be

operated under specific conditions before the monitor is ready. These

monitors are termed non-continuous monitors and are listed below:

1. EGR Syst em - exha ust Gas Reci rcul at ion for reduci ng greenhouse gase s.

2. O2 Sensors - monitor and adjust air/fuel mixture.

3. Catalyst - reduces exhaust emissions.

4. Evaporative System - monitors the integrity of the fuel tank system.

5. O2 Sensor Heater - brings O2 sensor to correct operating temperature.

6. Secondary air - reduces exhaust emissions.

7. Heated Catalyst - brings catalyst to correct operating temperature.

8. A/C system - monitors system for freon leaks.

Components that have been OBD II tested will be reported as “OK”. The

purpose of recording readiness status is to allow inspectors to determine if

the vehicle’s OBDII system has tested all the emissions systems. This is

handy to know before bringing vehicle to a state emissions testing facility.

The powertrain control module (PCM) sets a monitor to “OK” after an

appropriate drive cycle has been performed. The drive cycle that enables a

Monitor and sets readiness codes to “OK” varies for each individual

monitor. Oncce a monitor is set as “OK”, it will remain in this state. A

number of factors, including erasing of diagnostic trouble codes (DTCs)

with a code reader or a disconnected battery, can result in Readiness

Monitors being set to “INC” (incomplete). Since the three continuous

monitors are constantly evaluating, they will be reported as “OK” all of the

time. As long as there are no DTCs stored in memory, the vehicle is

running in accordance with the OBD II guidelines. If testing of a particular

supportes non-continuous monitor has not been completed or not tested,

the monitor status will be reported as “INC” (incomplete).

In order for the OBD monitor system to become ready, the vehicle should

be driven under a variety of normal operating conditions. These operating

conditions may include a mix of highway driving and stop and go, city type

driving, and at least one overnight-off period. For specific information on

getting your vehicle’s OBD monitor system ready, please consult your

vehicle owner’s manual.

2.6 OBD II Definitions

Powertrain Control Module (PCM) – the OBD II terminology for the on-

board computer that controls the engine and the drive train.

Malfunction Indicator Light (MIL) – Malfunction Indicator Light (Service

Engine Soon, Check Engine) is a term used for the light on the instrument

panel. It is to alert the driver and/or the repair technician that there is a

problem with one or more of vehicle’s systems and may cause emissions

to exceed federal standards. If the MIL illuminates with a steady light, it

indicates that a problem has been detected and the vehicle should be

serviced as soon as possible. Under certain conditions, the dashboard

light will blink or flash. This indicates a severe problem and flashing is

2.5 OBD II Monitor Readiness Status

OBD II systems must indicate whether or not the vehicle’s PCM’s

monitoring has completed testing on each emission component.

Enabling Criteria – Also termed Enabling Conditions. They are the

vehicle-specific events of conditions that must occur within the engine

before the various monitors will set, or run. Some monitors require the

vehicle to follow a prescribed “drive cycle” routine as part of the enabling

criteria. Drive cycles vary among vehicles and for each monitor in any

particular vehicle.

OBD II Drive Cycle – A specific mode of vehicle operation that provides

conditions required to set all the readiness monitors applicable to the

vehicle to the “ready” condition. The purpose of completing an OBD II drive

cycle is to force the vehicle to run its onboard diagnostics. Some form of a

drive cycle needs to be performed after DTCs have been erased from the

PCM’s memory or after the battery has been disconnected. Running

through a vehicle’s complete drive cycle will “set” the readiness monitors

so that future faults can be detected. Drive cycles vary depending on the

vehicle and the monitor that needs to be reset. For vehicle specific drive

cycle, consult the vehicle’s Owner’s Manual.

Freeze Frame Data – When an emissions related fault occurs, the OBD II

system not only sets a code, but also records a snapshot of the vehicle

operating parameters to help in identifying the problem. This set of values

is referred to as Freeze Frame Date and may include important engine

parameters such as engine RPM, vehicle speed, air flow, engine load, fuel

pressure, fuel trim value, engine coolant temperature, ignition timing

advance, or closed loop status.

intended to discourage vehicle operation. The vehicle onboard diagnostic

system can not turn the MIL off until necessary repairs are completed or

the condition no longer exists.

DTC – Diagnostic Trouble Codes (DTC) these identify which section of the

emission control system has malfunctioned.

3. Using the Scan Tool

3.1 Tool Description - AutoPhix OM 520

1. LCD DISPLAY – Indicates test results. Backlit, 128 x 64 pixel display

with contrast adjustment.

2. ENTER BUTTON – Confirms a selection (or action) from a menu.

3. EXIT BUTTON – Cancels a selection (or action) from a menu or returns

to the menu. It is also used to setup system, exit DTC Lookup screen.

4. LEFT SCROLL BUTTON – When looking up DTC definitions, moves

to previous character and views additional information on previous screens

if DTC definition covers more than one screen; deselect all marked

PID data . Updates DTC library when pressed.

5. RIGHT SCROLL BUTTON – When looking up DTC definitions,

moves to next character and views additional information on next screens

if DTC definition covers more than one screen; selects/deselects PID data.

6. UP SCROLL BUTTON – Moves up through menu and submenu

items in menu mode. When more than one screen of data is retrieved,

moves up through the current screen to the previous screens for additional

data.

7. DOWN SCROLL BUTTON – Moves down through menu and

submenu items in menu mode. When more than one screen of data is

retrieved, moves down through the current screen to next screens for

additional data.

8. HELP BUTTON – Provides help information when pressed.

9. OBD II CONNECTOR – Connects the scan tool to the vehicle’s Data

Link Connector (DLC).

3.2 Specifications

1) Display: Backlit, 128 × 64 pixel display with contrast adjustment

2) Operating Temperature: 0 to 60°C (32 to 140 F°)

3) Storage Temperature: -20 to 70°C (-4 to 158 F°)

4) External Power: 8.0 to 18.0 V power provided via vehicle battery

5) Dimensions:

Length Width Height

166 mm (6.48”) 88 mm (3.45”) 30 mm (1.16”)

6) NW: 0.48kg (1.06lb), GW: 0.62kg (1.36lb)

3.3 Accessories Included

1) OBD II cable – Provides power to tool and commu nicates betwe en tool and

vehicle.

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