Trademarks Autel®, MaxiSys®, MaxiDAS®, MaxiScan®, MaxiRecorder®, MaxiTPMS®, and MaxiCheck® are trademarks of Autel Intelligent Technology Corp., Ltd., registered in China, the United States and other countries. All other marks are trademarks or registered trademarks of their respective holders.
Safety Precautions and Warnings To prevent personal injury or damage 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 clothing, hair, hands, tools, test equipment, etc. away from all moving or hot engine parts.
CONTENTS 1 GENERAL INFORMATION ...................................................................... 1 ON-BOARD DIAGNOSTICS (OBD) II ............................................................... 1 DIAGNOSTIC TROUBLE CODES (DTCS) .......................................................... 1 LOCATION OF THE DATA LINK CONNECTOR (DLC) ........................................... 2 OBD II READINESS MONITORS ..................................................................... 3 OBD II MONITOR READINESS STATUS .
O2 MONITOR TEST ....................................................................................46 ON-BOARD MONITOR TEST .........................................................................47 COMPONENT TEST .....................................................................................49 VIEW VEHICLE INFORMATION .......................................................................51 MODULES PRESENT ...................................................................................
1 General Information On-Board Diagnostics (OBD) II The first generation of On-Board Diagnostics (called OBD I) was developed by the California Air Resources Board (ARB) 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".
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 set.
Figure 1-2 OBD II Readiness Monitors An important part of a vehicle’s OBD II system is the Readiness Monitors, which 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 II Readiness Monitors (or I/M Monitors) defined by the U.S. Environmental Protection Agency (EPA).
monitors are termed non-continuous monitors. For different ignition type engines, the available monitors are different too.
trouble codes (DTCs) with a scan tool or a disconnected battery, can result in Readiness Monitors being set to “Not Ready”. Since the three continuous monitors are constantly evaluating, they will be reported as “Ready” all of the time. If testing of a particular supported non-continuous monitor has not been completed, the monitor status will be reported as “Not Complete” or “Not Ready.
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.
Mode $03 – displays the type of powertrain or emission related DTCs stored by a 5 digit code identifying the faults. There may be more than one response message if there are more trouble codes than will fit in the data bytes of the response message, or if there are more than one ECU computer responding. Mode $04 – used to clear DTCs and Freeze Frame data. This clears all diagnostic trouble codes that may be set including freeze frame data and readiness monitors.
Mode $09 – reports vehicle information. This information includes vehicle VIN number and calibration information stored in the vehicle ECUs. Mode $0A – requests emission-related Diagnostic Trouble Codes with Permanent status. This mode is required for all emissions-related DTCs. The presence of permanent DTCs at an inspection without the MIL illuminated is an indication that a proper repair was not verified by the on-board monitoring system.
2 Using the Scan Tool Tool Description Figure 2-1 1) OBD II CONNECTOR – connects the scan tool to the vehicle’s Data Link Connector (DLC). 2) LCD DISPLAY – displays menus and test results. 3) GREEN LED – indicates that engine systems are running normally (The monitors on the vehicle are active and performing their diagnostic testing is in the allowed limit, and no DTCs are present).
4) 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. 5) RED LED – indicates there is a problem in one or more of the vehicle’s systems. The red LED also indicates DTCs are present. DTCs display on the Scan Tool’s display. In this case, the MIL on the vehicle’s instrument panel will light steady.
2) Operating Temperature: 0°C to 60°C (32°F to 140°F) 3) Storage Temperature: -20°C to 70°C (-4°F to 158°F) 4) External Power: 8.0 to 18.0 V power provided via vehicle battery 5) Dimensions: Length 199 mm (7.83”) 6) Width Height 104.5 mm (4.11”) 37.5 mm (1.48”) Weight: 280 g (without wire) 484 g (with wire) Accessories Included 1) User Manual – instructions on tool operations. 2) OBD II Cable – used to connect tool to vehicle for communication and to power tool.
Power The scan tool is powered via the vehicle Data Link Connector (DLC). Just follow the steps below to turn on the scan tool: 1) Connect the OBD II Cable to scan tool. 2) Find DLC on vehicle. A plastic DLC cover may be found for some vehicles and you need to remove it before attaching the OBD II cable. 3) Plug OBD II cable to the vehicle’s DLC. DTC Lookup The DTC Lookup function is used to search for definitions of DTCs stored in the DTC library and for DTC Guide information.
Figure 2-3 3) View the data trouble code (DTC) definition on screen. When DTC definition is on more than one screen, use the LEFT/RIGHT button or UP/DOWN button to view additional information on previous/next screens. For manufacturer specific codes, you need to select a vehicle make on an additional screen to look for DTC definitions.
7) Update Mode: Accesses the Update Mode. Tool operates with default settings until changed. To enter the Setup menu From the Main Screen: Use the UP/DOWN scroll button and LEFT/RIGHT scroll button to select Setup, and press the OK button. Follow the instructions to make adjustments and settings as described in the above setup options. Figure 2-4 Language Setup English is the default language.
Configure Monitors From System Setup screen, use the UP/DOWN scroll button to select Configure Monitors, and press the OK button. Figure 2-6 On this menu, configure the monitors required to test spark ignition and compression ignition, the number of monitors to pass diagnosis, and restore the default settings. A. Spark IGN Required Monitors From Configure Monitors screen, use the UP/DOWN scroll button to select Spark IGN Required Monitors, and press the OK button.
From Configure Monitors screen, use the UP/DOWN scroll button to select Compression IGN Required Monitors, and press the OK button. The monitors for compression ignition engines display as below: Table 2-2 Compression IGN Required Monitors √ MIS √ BP √ FUEL √ EGS √ CCM √ PM √ HCCAT √ EGR √ NCAT C. Allowed INC Monitors From Configure Monitors screen, use the UP/DOWN scroll button to select Allowed INC Monitors, and press the OK button.
Unit of Measure Metric is the default measurement unit. 1) From System Setup screen, use the UP/DOWN scroll button to select Unit of Measure and press the OK button. 2) From Unit of Measure screen, use the UP/DOWN scroll button to select the desired unit of measurement. Figure 2-7 3) Press OK to save your selection and return to previous menu. Key Beep Set This function allows you to turn on/off the build-in speaker for key pressing. The default setting is Beep On.
Status Beep Set The default setting is Beep On. This function allows you to turn on/off the built-in speaker as an indicator during diagnostic testing. Different audio tones correspond to different LED lights. This function is invaluable when performing diagnostics alone, or while working in bright areas where LED illumination alone is not sufficient. 1) From System Setup screen, use the UP/DOWN scroll button to select Status Beep Set and press the OK button.
Figure 2-10 3) When completed, press the ESC button to exit. B. Keyboard Test The Keyboard Test function verifies if the keys are functioning properly. 1) Use the UP/DOWN scroll button to select Keyboard Test from the Tool Self-test menu, and then press the OK button. 2) Press any key to start test. When you press a key, the key name should display on screen. If the key name does not display, the key is not functioning. Figure 2-11 3) Double press ESC to return to previous menu. C.
2) In the LED Test menu, use the UP/DOWN scroll button to select one or more LED lamps to test. The LED should turn on or off according to the selected commands. Figure 2-12 3) When completed, press the ESC button to exit. Update Mode This function allows you to update the software of the tool, refer to Update on page 25 for details. About The About function allows viewing of some important information such as serial number and software version number of the scanner.
Vehicle Coverage The MaxiLink ML519 OBDII/EOBD Scanner is specially designed to work with all OBD II compliant vehicles, including those equipped with the Control Area Network (CAN) protocol. The EPA requires all domestic, Asian and European vehicles, 1996 and newer (including light trucks), sold in the United States must be OBD II compliant. A small number of 1994 and 1995 model year gasoline vehicles are OBD II compliant.
Operating Error If the scan tool freezes, then an exception occurs or the vehicle’s ECU (Engine Control Unit) is too slow to respond to requests. You need to do the following to reset the tool: Reset the scan tool. Turn the ignition off and wait for about 10 seconds. Turn the ignition back to on and continue the testing.
3 Print and Update Print Review Data The Review Data function allows viewing of data from last recorded test. 1) Use the UP/DOWN scroll button and LEFT/RIGHT scroll button to select Review Data from Main Screen, and press the OK button. 2) Use the UP/DOWN scroll button to select the desired item from Review Data menu, and press the OK button. Figure 3-1 If no data from previously tested vehicle is recorded, only Modules Present data containing module ID and protocol type can be reviewed.
3) Diagnostics results can be reviewed from this list only when any trouble code is detected in previous tests. Review selected data on screen. NOTE If there is no data stored for selected item, a “Not Supported or Stored No Data!” message shows on the screen. Print Data The Print Data function allows printing DTC data recorded by the tool by connecting the tool to a Windows-based PC with the supplied USB cable. 1. Download the Maxi PC Suite from www.autel.
Copy – copy data in the textbox to the clipboard. Clear – delete data in the textbox. Exit – quit the operation. Update To update your scan tool, you need the following items. MaxiLink ML519 A Windows-based computer or laptop with USB ports The provided USB cable Update Procedure Autel frequently releases software updates to download. Connect the tool to a Windows-based computer using the included USB cable. Follow the update procedure to finish updating. 1.
4 OBDII Diagnostics When more than one vehicle control module is detected by the scan tool, you will be prompted to select the module with retrievable data. The Power train Control Module [PCM] and Transmission Control Module [TCM] are the most commonly scanned modules. CAUTION: Don’t connect or disconnect the scan tool while the ignition is on or the engine running. 1) Turn the ignition off. 2) Locate the vehicle’s 16-pin Data Link Connector (DLC). 3) Plug the tool into the vehicle’s DLC.
Figure 4-1 8) To erase the data, press the OK button; if you do not want to erase the data, press ESC to exit or use LEFT/RIGHT button to select NO and press OK to continue. 9) View a summary of system status (MIL status, DTC counts, Monitor status) on screen. Wait a moment or press any key for Diagnostic Menu to display. Figure 4-2 If more than one module is detected, you will be prompted to select a module to test.
Read Codes The Read Codes function can be performed with the key on, engine off (KOEO) or with the key on, engine running (KOER). Stored Codes are also known as “hard codes”, which are fault codes, or trouble codes that have been stored in the vehicle computer memory because the faults have reoccurred for more than a specified amount of key-cycles. These codes will cause the control module to illuminate the malfunction indicator light (MIL) when emission-related faults occur.
Figure 4-5 If no codes are found, a message will display “No (pending) codes are stored in the module!” Wait a moment or press any key to return to previous screen. NOTE Permanent Codes function is available only for vehicles supporting the CAN protocols. 10) View DTCs and their definitions on screen. Figure 4-6 11) If more than one DTC is found, use the LEFT/RIGHT scroll button to review each code.
Figure 4-7 If the manufacturer of your vehicle is not listed, use the UP/DOWN scroll button to select Other and press the OK button. Erase Codes NOTE 1. Erasing the Diagnostic Trouble Codes may allow the scan tool to delete not only the codes from the vehicle’s on-board computer, but also “Freeze Frame” data and manufacturer-specific enhanced data. Further, the I/M Readiness Monitor Status for all vehicle monitors is reset to Not Ready or Not Complete status.
3) 4) If you do not want to proceed with erasing codes, press ESC button or use LEFT/RIGHT scroll button to select NO to exit. A message of “Command Cancelled!” displays. Wait a few seconds or press any key to return to Diagnostic Menu. Press the OK button to confirm. If the codes are cleared successfully, an “Erase Done!” confirmation message displays. If the codes are not cleared, then an “Erase Failure. Turn Key on with Engine off!” message displays.
View Complete Data Set 1) To view complete set of data, use UP/DOWN scroll button to select Complete Data Set from View Data menu and press the OK button. 2) View live PIDs on the screen. Use the UP/DOWN scroll button for more PIDs if additional information is available on more than one page. Figure 4-10 Figure 4-11 The number “x” to the right of the screen indicates the sequence of the highlighted item. To view full name of the highlighted PID, press the ? button.
Figure 4-12 3) Press the ESC button to return to previous menu. View Custom Data Set 1) To view customized PID data, use the UP/DOWN scroll button to select Custom Data Set from View Data menu and press the OK button. 2) Follow on-screen instructions. Figure 4-13 3) Use the RIGHT button to deselect/select data parameters, and use the UP/DOWN scroll button to move up and down. Selected parameters are marked with solid squares.
4) The number “x” to the upper right corner of the screen indicates sequence of highlighted item; and “#x” are the order that the parameters are selected and will be displayed. Press the LEFT button to deselect all marked items or select all items. A message displays for your confirmation. If you decide to deselect these items, press OK; if you decide not to, press ESC or use the LEFT/RIGHT scroll button to select NO to continue PID selections.
Record Complete Data Set 1) To record complete set of live data, use the UP/DOWN scroll button to select Complete Data Set from Record Data menu and press OK. 2) Use the UP/DOWN scroll button to select a trigger mode and press the OK button. Figure 4-16 Figure 4-17 3) If data from previously tested vehicle is not erased, data from current test will be stored in the tool’s temporary memory. Use the UP/DOWN scroll button to select a memory location and press the OK button.
The asterisk (*) icon on the screen indicates that a previous recording is stored in the highlighted location. If you select a location marked with an asterisk (*) icon, a message prompting to overwrite old recording displays. Figure 4-19 4) If you wish to proceed with overwriting the recording, press the OK button; if you do not wish to overwrite it, use the LEFT/RIGHT button to select NO or press the ESC button to pick another memory location. Observe on-screen instructions.
Figure 4-21 5) Wait for DTC to trigger or press OK to start recording. Drive till a DTC is detected when DTC Trigger is selected. If no DTCs are detected, press ESC to exit recording. Figure 4-22 6) The number “x/x...” in the upper right corner of the screen indicates the number of recorded frames out of the maximum frames that can be recorded The scan tool continues recording PID data until the ESC button is pressed, selected memory location is full, or it completes recording.
If you wish to playback recorded data, press the OK button; if you do not wish to playback, press the ESC button, or use LEFT/RIGHT button to select NO and press the OK button to return to Record Data menu. Record Custom Data Set 1) To record customized data, use the UP/DOWN scroll button to select Custom Data Set from Record Data menu and press the OK button. 2) Observe on-screen instructions.
8) The scan tool continues recording PID data until user presses ESC button, the selected memory location is full, or it completes recording. A message prompting to playback data shows on the screen. If you wish to playback recorded data, press the OK button; if you do not wish to playback, press the ECS button, or use the LEFT/RIGHT button to select NO and press the OK button to return to Record Data menu. Playback Data The Playback Data function allows viewing of previously stored PID data.
coolant temperature (ECT), or vehicle speed sensor (VSS). This information will aid the technician by allowing the parameters to be duplicated for diagnostic and repair purposes. 1) To view freeze frame data, use the UP/DOWN scroll button to select View Freeze Frame from Diagnostic Menu and press the OK button. 2) Wait while the scan tool validates the PID MAP. 3) If retrieved information displays on more than one screen, use the DOWN scroll button, as necessary, until all the data have been shown up.
A. Since DTCs Cleared – indicates status of the monitors since the DTCs are erased. B. This Drive Cycle – indicates status of monitors since the beginning of the current drive cycle. An I/M Readiness Status result of “NO” does not necessarily indicate that the vehicle being tested will fail the state I/M inspection. For some states, one or more such monitors may be allowed to be “Not Ready” to pass the emissions inspection.
N/A – the monitor is not supported on the vehicle. The green, yellow and red LEDs provide a quick way to help you determine if a vehicle is ready for an Emission Test. The LED and audio tone are interpreted as below: LED Interpretation GREEN LED – indicates that engine systems are “OK” and operating normally (the number of Monitors supported by the vehicle that have run and performed their self-diagnostic testing is in the allowed limit. MIL is off. ).There are neither stored nor pending DTCs.
If the RED LED lights, there is a definite problem present in the system(s). In this case, 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 undergoes Emissions Testing.
Figure 4-27 4) Use the UP/DOWN scroll button to view the status of the MIL light (ON or OFF) and the following monitors.
Figure 4-28 5) If the vehicle supports readiness test of This Drive Cycle, a screen of the following displays. Figure 4-29 6) The LEDs and audio tone corresponding to different monitor status will be activated as below. Table 4-2 LED Light Audio Tone Beep Interval Green LED Two long beeps 2 minutes Yellow LED short, long, short beep 2 minutes Red LED Four short beeps 2 minutes 7) Use the UP/DOWN scroll button for more PIDs if additional information is available on more than one page.
O2 Monitor Test OBD II regulations set by the (Society of Automotive Engineers) SAE require vehicles monitors and tests on the oxygen (O2) sensors to identify problems related to fuel efficiency and vehicle emissions. These tests are done automatically when engine operating conditions are within specified limits. These test results are saved in the vehicle’s on-board computer's memory.
Figure 4-31 5) Use the UP/DOWN scroll button to view additional data if available. 6) Press the ESC button to return to the previous menu. On-Board Monitor Test The On-Board Monitor Test is useful after servicing or after erasing a vehicle’s control module memory. The On-Board Monitor Test for non-CAN-equipped vehicles retrieves and displays test results for emission-related power train components and systems that are not continuously monitored.
1) Use the UP/DOWN scroll button to select On-Board Mon. Test from Diagnostic Menu and press the OK button. 2) Wait while the scan tool validates the PID MAP. 3) The scan tool will prompt you to select the vehicle make. 4) After you select the vehicle manufacturer, the scan tool displays the On-Board Monitors test results for specific monitored systems. Figure 4-32 5) From On-Board Mon. Test menu, use the UP/DOWN scroll button to select a test to view and press the OK button.
Figure 4-34 NOTE If the On-Board Monitor Test fails, this monitor item will be listed in red. Figure 4-35 8) Press ESC button to return to the previous menu. Component Test The Component Test initiates a leak test for the vehicle's EVAP system. The scan tool itself does not perform the leak test, but commands the vehicle's on-board computer to start the test. Different vehicle manufacturers might use different criteria and methods for stopping the test once it has been started.
Figure 4-36 3) If the test has been initiated by the vehicle, a confirmation message will be displayed on the screen. Figure 4-37 Some vehicles do not allow scan tools to control vehicle systems or components. If the vehicle under test does not support the EVAP Leak Test, the message, “The select mode is not supported” will display. Figure 4-38 4) Wait a few seconds or press any key to return to previous screen.
View Vehicle Information The Vehicle Info. function enables retrieval of Vehicle Identification No. (VIN), Calibration ID Nos. (CINs), Calibration Verification Nos. (CVNs) and In-use Performance Tracking on 2000 and newer vehicles that support Mode 9. 1) Use UP/DOWN scroll button to select Vehicle Info. from the Diagnostic Menu and press OK button. 2) A message displays to remind you to “Turn key on with engine off!” Wait a moment or press any key to continue.
Figure 4-41 6) Press the ESC button to return to previous menu. Modules Present The Modules Present function displays the module communication protocols for OBD II modules in the vehicle. IDs and 1) Use the UP/DOWN scroll button to select Modules Present from Diagnostic Menu and press OK button. 2) View modules present with their IDs and communication protocols. Figure 4-42 3) Press the ESC button to return to previous menu.
2) Press the ? button to display DTC Guide menu. 3) The detailed information and helpful tips for this specific DTC display on the screen. 4) To return to previous screen, press ESC button.
5 Ready Test This function can be used as a convenient readiness test tool by automotive technicians to determine if the tested vehicle is ready for an emission test. By visual and audible indication, you will learn a vehicle’s monitors readiness. General Information Repairs to the emissions-control systems of a 1996 or newer vehicle cause the vehicle’s computer (ECU) memory to be cleared.
Ready Test Application This function displays which vehicle monitors have run, if they have been completed and the results of the testing. Results display on one screen providing an at-a-glance profile of the vehicle. Use the UP/DOWN scroll button and LEFT/RIGHT scroll button to select Ready Test from Main Screen, and press the OK button.
5) If the RED LED lights, your vehicle is not ready and if you have performed repairs, they have failed to correct the emissions issue. As pre-check diagnostic tool Prior to having a vehicle inspected for state emissions compliance, use this function to check the readiness status. 1) While the scan tool is connected to the vehicle, select Ready Test from Main Screen.
Figure 5-2 If the scan tool is idle, the results will immediately display. If it is busy, it will wait till the current procedure finished. After viewing the status, press ESC button to exit. OK – indicates that a particular monitor being checked has completed its diagnostic testing. INC – indicates that a particular monitor being checked has not completed its diagnostic testing. N/A – the monitor is not supported on the vehicle.
Table 5-1 LED Light Audio Tone Beep Interval Green Two long beeps 2 minutes Red No beep 58
6 Compliance Information FCC COMPLIANCE This device complies with Industry Canada’s licence-exempt RSSs. Operation is subject to the following two conditions: 1. This device may not cause harmful interference. 2. This device must accept any interference received, including interference that may cause undesired operation. Cet appareil est conforme aux CNR exempts de licence d’Industrie Canada. Son fonctionnement est soumis aux deux conditions suivantes: 1.
particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: – Reorient or relocate the receiving antenna. – Increase the separation between the equipment and receiver. – Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
7 Warranty and Service Limited One Year Warranty Autel Intelligent Technology Corp., Ltd.
IMPORTANT All contents of the product may be deleted during the process of repair. Please backup any contents of your product before delivering the product for warranty service. Service and Support If you have any questions regarding the product, please contact one of our offices or your local distributor. AUTEL NORTH AMERICA Phone: 855-AUTEL-US (855-288-3587) Mon.-Fri. 9am-6pm EST Website: www.autel.com Email: ussupport@autel.
Address: Office 103, Building 3845, International Business Park, Veracruz, Panamá Pacífico, Panamá AUTEL AUSTRALIA Phone: 03 9480 2978 / +61 476293327 Website: www.autel.com.au Email: sales@autel.com.
