Autel AL539 Manual Download Page 62

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Figure 5.42



For CAN-equipped vehicles, test selections can be as below:

Figure 5.43

Use the

UP/DOWN

scroll button to select the desired monitor

from

On-Board Mon. Test

menu and press the

button.

View test data on screen.

Figure 5.44

On-Board Mon. Test 1/31

O2 Mon. B1S1

  O2 Mon. B1S2
  O2 Mon. B1S3
  O2 Mon. B1S4
  O2 Mon. B2S1
  O2 Mon. B2S2

HO2S11 Voltage amplitu 1/36

ID 11

  MOD                                        $10
  TEST(volts)                          400      ?
  MIN(volts)                            1E1
  MAX(volts)                          -----

STS OK

On-Board Mon. Test

The selected mode is

not supported

Press any key to con..

Summary of Contents for AL539

Page 1: ...EFINITIONS 6 2 7 OBD II MODES OF OPERATION 7 3 USING THE SCAN TOOL 10 3 1 TOOL DESCRIPTION 10 3 2 SPECIFICATIONS 12 3 3 ACCESSORIES INCLUDED 13 3 4 NAVIGATION CHARACTERS 13 3 5 KEYBOARD 13 3 6 POWER AND CHARGE 14 3 7 DTC LOOKUP 16 3 8 SYSTEM SETUP 17 3 9 VEHICLE COVERAGE 27 3 10 PRODUCT TROUBLESHOOTING 28 4 REVIEW DATA 30 5 OBDII DIAGNOSTICS 31 5 1 READING CODES 33 5 2 ERASING CODES 35 5 3 LIVE DA...

Page 2: ...T APPLICATION 67 6 3 LED AND TONE INTERPRETATION 69 7 CIRCUIT TEST FUNCTION 71 7 1 AUTO 71 7 2 DC VOLTAGE 71 7 3 AC VOLTAGE 72 7 4 CONTINUITY 72 7 5 DIODES 73 7 6 CURRENT 74 7 7 CURRENT 74 8 START TEST 76 8 1 STARTER TEST 76 8 2 CHARGING SYSTEM TEST 81 9 BATTERY TEST ONLY FOR AL539B 85 10 PRINT DATA 89 11 WARRANTY AND SERVICE 91 11 1 LIMITED ONE YEAR WARRANTY 91 11 2 SERVICE PROCEDURES 91 ...

Page 3: ...n front of the drive wheels and never leave the vehicle unattended while running tests Use extreme caution when working around the ignition coil distributor cap ignition wires and spark plugs These components create hazardous voltages when the engine is running Put the transmission in PARK for automatic transmission or NEUTRAL for manual transmission and make sure the parking brake is engaged Keep...

Page 4: ...e 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...

Page 5: ...usually located 12 inches from the center of the instrument panel dash under or around the driver s side for most vehicles If Data Link Connector is not located under dashboard a label should be there telling 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 s...

Page 6: ...icle depends on the motor vehicle manufacturer s emissions control strategy Continuous Monitors Some of the vehicle components or systems are continuously tested by the vehicle s OBD II system while others are tested 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 ve...

Page 7: ...5 OBD II Monitor Readiness Status OBD II systems must indicate whether or not the vehicle s PCM s monitor system has completed testing on each component Components that have been tested will be reported as Ready or Complete meaning they have been tested by the OBD II system The purpose of recording readiness status is to allow inspectors to determine if the vehicle s OBD II system has tested all t...

Page 8: ...nology for the on board computer that controls engine and 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 illu...

Page 9: ...lated 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 Data 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...

Page 10: ...ults This mode displays the oxygen sensor monitor screen and the test results gathered about the oxygen sensor There are ten numbers available for diagnostics 1 01 Rich to Lean O2 sensor threshold voltage 2 02 Lean to Rich O2 sensor threshold voltage 3 03 Low sensor voltage threshold for switch time measurement 4 04 High sensor voltage threshold for switch time measurement 5 05 Rich to Lean switch...

Page 11: ...ere applicable This mode is manufacturer specific 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 a...

Page 12: ...ol to the vehicle s Data Link Connector DLC 2 LCD DISPLAY Indicates test results 3 GREEN LED Indicates that engine systems are running normally The number of monitors on the vehicle which are active and performing their diagnostic testing is in the allowed limit and no DTCs are present ...

Page 13: ...es to previous character and views additional information on previous screens if DTC definition covers more than one screen deselect all marked PID data when viewing or recording customized live data list views previous frames of recorded data when playing back live data It is also used to update DTC library when pressed 9 POWER BUTTON Press and hold for 2 seconds to turn the scan tool on and off ...

Page 14: ...s a ground lead 16 mA TERMINAL Assists current 0 200mA test as a lead 17 A TERMINAL Assists current 0 20A test as a lead 18 USB CONNECTOR Connects the scan tool to the PC for printing and upgrading 19 EXTERNAL DC POWER PORT Connects the 5 volt power adapter to power the tool when disconnected from the vehicle or charge the battery 20 STAND Flips out for supporting the scan tool 3 2 Specifications ...

Page 15: ...Nylon Case Contains the main unit and cables while not in use AutoLink AL539B Only 8 Battery Test Cable Used to contact the terminals of vehicle battery 9 Carry Case A nylon case to store the scan tool when not in use 3 4 Navigation Characters Characters used to help navigate the scan tool are 1 Identifies the control module number from which data is retrieved Indicates the Test ID in On Board Mon...

Page 16: ...o remove it before plugging the OBD2 cable 3 Plug OBD II cable to the vehicle s DLC When the scan tool is not connected to a vehicle it can be powered in the other three ways Auto power off Solely powered up by Li ion battery the tool will automatically turn off after 15 minutes of inactivity Li ion battery charging You can charge your Li ion battery by connecting it to an external power adapter b...

Page 17: ...n because if the lid is closed the computer may go into either standby sleep or hibernation mode and the tool will not charge Using vehicle DLC If you want to charge the tool with vehicle DLC the detailed instructions are described as above refer to the Power on instructions Using vehicle battery If you want to charge the tool with vehicle battery use the battery test cable to connect the tool to ...

Page 18: ...nd for code breaker information 1 From Main Screen Figure 3 1 use the UP DOWN scroll button and LEFT RIGHT scroll button to select DTC Lookup and press the OK button Figure 3 1 2 From DTC Lookup screen use the LEFT RIGHT button to move to the desired character use the UP DOWN button to change selected digit character and press the OK button to confirm Figure 3 2 Figure 3 2 DTC Lookup P 0 0 0 1 Lef...

Page 19: ... DTC more System Description and Quick Check to read detailed description of DTCs General Notes to view helpful repair information of DTCs 4 To view previous or next DTC in the built in DTC library use the LEFT RIGHT button 5 To enter another DTC press the ESC button to return to previous screen 6 To exit to Main Screen press the ESC button 3 8 System Setup The scan tool allows you to make the fol...

Page 20: ...ow the instructions to make adjustments and settings as described in the above setup options Figure 3 3 Figure 3 3 Language Setup English is the default language 1 From System Setup screen use the UP DOWN scroll button to select Language and press the OK button 2 Use the UP DOWN scroll button to select the desired language and press the OK button to save your selection and return to previous scree...

Page 21: ...on ignition the number of monitors to pass diagnosis and restore the default settings 1 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 The monitors for spark ignition engines list as below English Españ ol Franç ais Deutsch Configure Monitors 1 4 Spark IGN Required Monitors Compression IGN Requi...

Page 22: ... CCM PM HCCAT EGR NCAT 3 Allowed INC Monitors From Configure Monitors screen use the UP DOWN scroll button to select Allowed INC Monitors and press the OK button Emissions tests vary depending on the geographic or regional area in which the vehicle is registered So the scan tool provides a more flexible way to meet different standards which allows the user to select 0 1 2 or 3 not complete monitor...

Page 23: ...ect Yes to proceed and No to exit without change 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 3 6 Figure 3 6 3 Press the OK button to save your selection and return to previo...

Page 24: ...his function allows you to turn on off the build in speaker for the LEDs in diagnostic testing Different audio tone corresponds to different LED lamp This function is invaluable when performing diagnostics alone or 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 2 From ...

Page 25: ...ly A Display test The Display Test function checks if the LCD display is working normally 1 From System Setup screen use the UP DOWN scroll button to select Tool Self test and press the OK button 2 Select Display Test from Tool Self test menu and press the OK button to start test Figure 3 9 Figure 3 9 Status Beep Set 1 2 Beep ON Beep OFF Tool Self test 1 3 Display Test Keyboard Test LED Test ...

Page 26: ...n the display If the key name does not show up then the key is not functioning properly Figure 3 10 Figure 3 10 3 Double press ESC to return to previous menu C LED Test The LED Test function verifies if the I M Readiness LED indicator lamps are functioning properly 1 Use the UP DOWN scroll button to select LED Test from the Tool Self test menu and then press the OK button 2 In the LED Test menu us...

Page 27: ...ion number of the scanner 1 From System Setup screen use the UP DOWN scroll button to select Tool Information and press the OK button wait for the Tool Information screen to appear 2 View tool information on screen Figure 3 12 Figure 3 12 Update Mode This function allows you to update the scan tool software and DTC library through a computer LED Test 1 3 RED LED ON YELLOW LED ON GREEN LED ON ...

Page 28: ...t the scan tool to your computer through the USB cable provided 4 From System Setup screen in scan tool use the UP DOWN scroll button to select Update Mode and press the OK button 5 Select the programs to be updated in your computer There are two types of programs operating system and DTC library Figure 3 13 6 Click Update in the MaxiLink Tool Kit window to begin updating Figure 3 13 7 During the ...

Page 29: ...D II compliant vehicles including those equipped with universal protocol Control Area Network CAN It is required by EPA that all 1996 and newer vehicles cars and light trucks sold in the United States must be OBD II compliant and this includes all Domestic Asian and European vehicles A small number of 1994 and 1995 model year gasoline vehicles are OBD II compliant To verify if a 1994 or 1995 vehic...

Page 30: ...testing Verify the control module is not defective 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 Scan tool doesn t power up If the ...

Page 31: ...ction and ignition off In this case follow these steps to check the scan tool Make sure the cable is connected to the DLC securely Verify the ignition key is in the KOER position Run the LED Test in the System Setup menu see 3 8 System Setup If the scan tool did not pass this test there is a problem with the LED lamp Please contact Autel Tech Support or your local selling agent ...

Page 32: ...gure 4 1 Figure 4 1 If no data from previously tested vehicle is recorded the scan tool displays a message No data available Diagnostics results can be reviewed from this list only when any trouble code is detected in previous tests 3 Review selected data on screen Figure 4 2 Figure 4 2 NOTE If there is no data stored for selected item a Not Supported or Stored No Data message shows on the screen ...

Page 33: ...Screen Figure 3 1 6 Press the OK button to wait for the Menu to appear A sequence of messages displaying the OBDII protocols will be observed on the display until the vehicle protocol is detected If the scan tool fails to communicate with the vehicle s ECU Engine Control Unit more than three times a LINKING ERROR message shows up on the display Verify that the ignition is ON Check if the scan tool...

Page 34: ...r 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 Figure 5 2 Wait a few seconds or press any key for Diagnostic Menu Figure 5 4 to come up Figure 5 2 If more than one module is detected you will be prompted to select a module before testing System Status MIL Status ON Codes Found 6 Ignition Type Spark Moni...

Page 35: ... Codes are also referred to as maturing codes or continuous monitor codes They indicate problems that the control module has detected during the current or last driving cycle but are not considered serious yet Pending Codes will not turn on the malfunction indicator lamp MIL If the fault does not occur within a certain number of warm up cycles the code clears from memory Permanent Codes are DTCs t...

Page 36: ... there is not any Diagnostic Trouble Code the display indicates No pending codes are stored in the module Wait a few seconds or press any key to return to previous screen NOTE Permanent Codes function is available for merely vehicles supporting the CAN protocols 3 View DTCs and their definitions on screen Diagnostic Menu 1 11 Read Codes Erase Codes Live Data View Freeze Frame I M Readiness O2 Moni...

Page 37: ... Use UP DOWN scroll button to select manufacturer and then press OK button to confirm Figure 5 7 If the manufacturer of your vehicle is not listed use the UP DOWN scroll button to select Other and press the OK button 5 2 Erasing Codes CAUTION 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...

Page 38: ... engine off KOEO Do not start the engine 1 Use the UP DOWN scroll buttons to select Erase Codes from Diagnostics Menu and press the OK button Figure 5 4 2 A warning message comes up asking for your confirmation Figure 5 8 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 shows up Wait a few seconds ...

Page 39: ...ly read the live data but also record data for later review Viewing Data The View Data function allows viewing of live or real time PID data of vehicle s computer module s 1 To view live data use the UP DOWN scroll button to select Live Data from Diagnostic Menu and press the OK button Figure 5 4 Erase Codes Erase Failure Turn Key on with Engine Off Press any key to con Erase Codes Erase Done Pres...

Page 40: ...on to select View Data from Live Data menu and press the OK button Figure 5 12 Viewing 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 Live Data Reading PID 01 Please Wait Live Data 1 3 View Data Record Data Playback Data ...

Page 41: ... Figure 5 14 The number x to the right of the screen indicates sequence of the highlighted item If the G icon appears when a PID is highlighted graphic information is available Press OK to view graph Figure 5 15 View Data 1 3 Complete Data Set Custom Data Set Unit of Measure Live Data 6 DTC_CNT 0 FUELSYS1 0L FUELSYS2 LOAD_PCT 0 0 ETC 40 SHRTFT1 99 2 ...

Page 42: ...ton to deselect select data parameters and use the UP DOWN scroll button to move up and down Selected parameters are marked with solid squares Figure 5 17 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 Custom Data Set 4 26 DTC_CNT FUELSYS1 FUELSYS2 LOAD_PCT 01 ECT SHRTFT1 Custom ...

Page 43: ...ll button to select NO to continue PID selections 4 Press the OK button to view selected PIDs on screen Figure 5 19 5 Use the ESC button to return to previous menu Recording Data The Record Data function allows recording vehicle modules Parameter Identification PID data to help diagnose intermittent vehicle problems A recording includes 5 frames of Live Data 4 DTC_CNT 0 FUELSYS2 0L ETC 40 SHRTFT1 ...

Page 44: ...can tool at the same time Always have another person operate the scan tool while driving To record live data use the UP DOWN scroll button to select Record Data from Live Data menu and press the OK button Figure 5 12 Recording 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 the OK button Figure 5 20 2...

Page 45: ... Figure 5 22 The asterisk icon on the screen indicates that there is a previous recording in the memory location If you select a location marked with an asterisk icon a message prompting to overwrite old recording displays Figure 5 23 Select Memory 1 3 Location 1 Location 2 Location 3 Pick Trigger Mode 1 2 Manual Trigger DTC Trigger Select Memory A previous recording exists Do you want to overwrit...

Page 46: ...l Trigger is selected following screen shows Figure 5 24 If DTC Trigger is selected following screen shows Figure 5 25 5 Wait for DTC to trigger recording or press OK to start recording Figure 5 26 Drive till a DTC is detected when DTC Trigger is selected If no DTCs are detected press ESC to exit recording Manual Trigger Ready to record Press ENTER to start recording Press ESC to exit DTC Trigger ...

Page 47: ...s full or it completes recording A message prompting to playback data shows on the screen Figure 5 27 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 Recording Custom Data Set Record Data Recording Done Playback data YES NO Recording 5 46 DTC_CNT...

Page 48: ...you decide to deselect these items press OK if you decide not to press the ESC button or use the UP DOWN button to select NO and press OK to continue PID selections 4 Use the UP DOWN scroll button to select a trigger mode and press the OK button Figure 5 21 If data from previously tested vehicle is not erased data from current test will be stored in temporary cache 5 Use the UP DOWN scroll button ...

Page 49: ... recording A message prompting to playback data shows on the screen Figure 5 27 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 1 To playback recorded data ...

Page 50: ...n to view recorded PIDs of each frame Figure 5 29 4 Use the LEFT RIGHT button to view PIDs of next or previous frames Figure 5 30 1 of 135 frame 6 DTC_CNT 0 FUELSYS1 OL FUELSYS2 N A LOAD_PCT 0 0 ETC 40 SHRTFT1 99 2 6 of 135 frame 4 DTC_CNT 0 FUELSYS1 OL FUELSYS2 N A LOAD_PCT 0 0 ETC 40 SHRTFT1 99 2 Select Memory 3 3 Location 1 Location 2 Location 3 ...

Page 51: ...a use the UP DOWN scroll button to select View Freeze Frame from Diagnostic Menu and press the OK button Figure 5 4 2 Wait a few seconds while the scan tool validates the PID MAP 3 If retrieved information covers more than one screen use the DOWN scroll button as necessary until all the data have been shown up Figure 5 31 If there is no freeze frame data available an advisory message No freeze fra...

Page 52: ...hese monitors the vehicle must be driven through a complete drive cycle with no trouble codes in memory Times for reset vary depending on vehicle Some latest vehicle models may support two types of I M Readiness tests 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 ...

Page 53: ...with One Click I M Readiness Key By simply pressing the One Click I M Readiness Key you can retrieve the I M readiness status The screen will show as below Figure 5 33 According to different readiness status the color LEDs will illuminate and different audio tones will be heard Figure 5 33 OK Indicates that a particular monitor being checked has completed its diagnostic testing INC Indicates that ...

Page 54: ...ause the yellow LED to light If a Stored Diagnostic Trouble Code is causing the Yellow LED to light it is still possible that the vehicle will be allowed to be tested for emissions and certified If a Pending Diagnostic Trouble Code is causing the Yellow LED to light it is still possible that the vehicle will be allowed to be tested for emissions and certified If the illumination of the Yellow LED ...

Page 55: ...r 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 Audio Tone Interpretation The audio tone is configured according...

Page 56: ...vehicle supports both types of tests then both types will be shown on the screen for selection Figure 5 34 4 Use the UP DOWN scroll button as necessary to view the status of the MIL light ON or OFF and the following monitors For spark ignition engines MIS Misfire Monitor FUEL Fuel System Monitor CCM Comprehensive Component Monitor EGR EGR System Monitor O2S O2 Sensors Monitor CAT Catalyst Monitor ...

Page 57: ...atment Monitor BP Boost Pressure System Monitor EGS Exhaust Gas Sensor Monitor PM PM Filter Monitor Figure 5 35 5 If the vehicle supports readiness test of This Drive Cycle a screen of the following displays Figure 5 36 6 The LEDs and audio tone corresponding to different monitor Since DTCs Cleared 1 MIL OFF MIS OK FUEL OK CCM OK CAT INC HCAT N A This Drive Cycle 1 MIL OFF MIS OK FUEL N A CCM OK C...

Page 58: ...d to fuel efficiency and vehicle emissions These tests are not on demand tests and they are done automatically when engine operating conditions are within specified limits These test results are saved in the on board computer s memory The O2 Monitor Test function allows retrieval and viewing of O2 sensor monitor test results for the most recently performed tests from the vehicle s on board compute...

Page 59: ...port the mode an advisory message will be displayed on the screen Figure 5 38 4 View test results of selected O2 sensor Figure 5 39 O2 Monitor Test 2 8 O2 Bank1 Sensor1 O2 Bank1 Sensor2 O2 Bank1 Sensor3 O2 Bank1 Sensor2 1 31 Rich Lean Threshd V Lean Rich Threshd V 70 counts 71 counts 83 84 O2 Monitor Test The selected mode is not supported ...

Page 60: ...toring tests for specific components systems The vehicle manufacturer is responsible for assigning Manufacturer Defined Test IDs and Component IDs for tests of different systems and components The advanced feature of this scan tool enables you to read the definition of an On Board Diagnostic Monitor ID NOTE The scan tool will display a Test definition only if this test definition is present in the...

Page 61: ...ll button to select a test to view and press the OK button Or use the LEFT RIGHT scroll button to view previous next screen of test items If the vehicle under test does not support the mode an advisory message will be displayed on the screen Vehicle Manufacturer 1 28 BUICK BMW CADILLAC CHRYSLER FORD GM On Board Mon Test 1 19 HO2S Monitor HO2S Monitor Catalyst Monitor EVAP Monitor EVAP Monitor EVAP...

Page 62: ... from On Board Mon Test menu and press the OK button 7 View test data on screen Figure 5 44 On Board Mon Test 1 31 O2 Mon B1S1 O2 Mon B1S2 O2 Mon B1S3 O2 Mon B1S4 O2 Mon B2S1 O2 Mon B2S2 HO2S11 Voltage amplitu 1 36 ID 11 MOD 10 TEST volts 400 MIN volts 1E1 MAX volts STS OK On Board Mon Test The selected mode is not supported Press any key to con ...

Page 63: ...he 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 have different criteria and methods for stopping the test once it has been started Before starting the Component Test refer to the vehicle service manual for instructions to stop the test EVAP monitor Phase 0 Initial tank ...

Page 64: ... 47 3 If the test has been initiated by the vehicle a confirmation message will be displayed on the screen Figure 5 48 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 an advisory message is displayed on the screen Component Test Evap Leak Test Component Test Command Sent Press any key to con ...

Page 65: ...ce 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 Figure 5 4 2 An advisory message comes up to remind you Wait a few seconds or press any key to continue Figure 5 50 3 Wait a few seconds while the scan tool reads vehicle information Component Test The selected mode is not supported Press any ke...

Page 66: ...nu use the UP DOWN scroll button to select an available item to view and press the OK button Figure 5 52 5 View retrieved vehicle information on screen Figure 5 53 6 Press the ESC button to return to previous menu Vehicle Info 3 3 Vehicle ID Number Calibration ID Cal Verf Number Cal Verf Number CVN1 BB BA A0 78 Vehicle Info Reading info Please Wait ...

Page 67: ...dules in the vehicle 1 Use the UP DOWN scroll button to select Modules Present from Diagnostic Menu and press OK button Figure 5 4 2 View modules present with their IDs and communication protocols Figure 5 54 3 Press the ESC button to return to previous menu Modules Present ID Protocol _________________________ 00 ISO 9141 2 ...

Page 68: ...d But how will you know when it is ready With this scan tool you don t have to drive around endlessly and continuously coming back to the repair shop for retest if all required tests by the ECU are completed And you could also do a quick check of the vehicle to determine if it is ready to receive an emission test without the hassle of connecting your vehicle to the analyzer or having to use a comp...

Page 69: ...time and improving technician productivity Use the UP DOWN scroll button and LEFT RIGHT scroll button to select Ready Test from Main Screen Figure 6 1 and press the OK button Figure 6 1 As post repair diagnostic tool This function can be used after the vehicle has done any emission related repairs to confirm that the repair has been performed successfully After repairs some drive cycles are requir...

Page 70: ... and the repair work is unsuccessful As pre check diagnostic tool Prior to having a vehicle inspected for compliance to a state emissions test you could use this function to check the readiness status first by yourself 1 While the scan tool connected to the vehicle select Ready Test from Main Screen Drive the car till the scan tool notifies you safely with color LEDs and audible tone if your vehic...

Page 71: ...Times for reset vary depending on vehicle Please refer to your vehicle s service manual for drive cycle information NOTE In this function only ESC button is available The other buttons are disabled to prevent misoperation 6 3 LED and Tone Interpretation Select Ready Test from the Main Screen and the screen shows as below including applicable monitors status MIL state Ignition type DTCs stored one ...

Page 72: ...umber of Monitors supported by the vehicle which have run and performed their self diagnostic testing is in the allowed limit 2 RED LED Your vehicle is Not Ready Indicates that the number of Monitors supported by the vehicle which have run and performed their self diagnostic testing is out of the allowed limit Audio Tone Interpretation The audio tone could be configured according to the I M Readin...

Page 73: ...ton to select Circuit Test from Main Menu in the scan tool and press the OK button Figure 3 1 The default mode is AUTO 7 1 AUTO While the tool in this mode contact the probes to a circuit According to different circuit situations the tool will select the corresponding functions independently Circuit situation Function Circuit powered by DC mains Reads off DC voltage Circuit powered by AC mains Rea...

Page 74: ... volt Figure 7 2 NOTE If the voltage is less than 3Volt the result will display with a resolution of 0 01volt 7 4 Continuity While the tool in this mode contact the probes to a circuit then the tool will check the continuity of this circuit NOTE If the resistance of circuit is less than 50 ohm the scan tool would display actual value and a beep would be heard ...

Page 75: ...e scan tool would display 0L as below Figure 7 4 7 5 Diodes While the tool in this mode contact the probes to a diode in the correct polarity red to the positive terminal and black to the negative terminal then the LCD display will read forward voltage drop of this diode ...

Page 76: ...een these two probes Current range of this mode is 0 20A Figure 7 6 NOTE If the current being tested is greater than 20A it may blow the fuse inside the tool 7 7 Current While the tool in this mode contact the probes to a circuit then the LCD display will read the current between these two probes Current range of this mode is 0 200mA ...

Page 77: ...75 Figure 7 7 NOTE If the current tested is within 200mA it is more precise to use the 200mA test mode to perform the test ...

Page 78: ...within specifications you can generally conclude that the starting system is functioning properly But if the starter does not crank cranks too slowly or the volts reading is not within specifications further testing will be required To get more accurate results this scan tool incorporates a temperature compensation feature to aid in tests Before performing the STARTER TEST the starting system shou...

Page 79: ...onnecting to DLC with OBDII connector B Connecting to battery with probes Follow the steps to complete the test 1 Perform PRETEST 2 Turn off all of the vehicle s electrical accessories 3 Connect the tool to vehicle s DLC with OBDII connector or contact the scan tool probes to the battery red to the positive terminal black to the negative terminal 4 Turn on the scan tool and wait for Main Screen to...

Page 80: ... Starter System Decisions and Recommendations Decision Action CRANKING NORMAL The starter voltage is normal and the starting system is OK Figure 8 3 CRANKING ABNORMAL The vehicle can t start and there is a problem with the starting system Check the battery connection wiring and starter Figure 8 4 CRANKING LOW The starter voltage is low and you d better check the starter system before a problem hap...

Page 81: ... and the battery is discharged Fully charge the battery and retest the starter system Figure 8 6 NO START If you didn t start engine to continue the test the scan tool wait for two minutes and abort the test Figure 8 7 Figure 8 3 Figure 8 4 Figure 8 5 Figure 8 6 ...

Page 82: ...gine Figure 8 8 9 Follow the steps above to do the test again If the scan tool doesn t connect to vehicle or battery it will display a message as below Check that OBDII connector is securely connected to the DLC or battery contact is clean and well connected then continue the test procedure Figure 8 9 ...

Page 83: ...arting the test inspect the alternator drive belt A belt that is glazed or worn or lacks the proper tension will prevent the engine from achieving the RPM levels needed for the test CHARGING SYSTEM TEST PROCEDURE There are two ways to do this test A Connecting to DLC with OBDII connector B Connecting to battery with probes Follow the steps to complete the test 1 Turn off all of the vehicle s elect...

Page 84: ...Follow the instructions to hold the engine rpm and turn on high beams and blower motor Then press OK button 7 The scan tool starts to record the charging voltage with loads on There may be four test results Table 2 Charging System Decisions and Recommendations Decision Action NORMAL The charging system is showing normal output No problem detected Figure 8 12 ...

Page 85: ...e connection is loose or heavily corroded clean or replace the cable and retest HIGH OUTPUT There is a problem with the charging system The voltage output from the alternator to the battery exceeds the normal limits of a functioning regulator Figure 8 14 Check to ensure there are no loose connections and that the ground connection is normal If the connection is OK check the regulator NOTE Most alt...

Page 86: ...damage which is shown by an excessive amount of AC ripple current supplied to the battery Figure 8 15 Make sure the alternator mounting is sturdy and that the belts are in good shape and functioning properly If the mounting and belts are good check the alternator Figure 8 12 Figure 8 13 Figure 8 14 Figure 8 15 ...

Page 87: ...not connect the battery test cable to a voltage source greater than 30V TEST PROCEDURE Follow the steps to complete the test 1 Make sure all vehicle electrical loads are off and the ignition is in the OFF position 2 Connect the scan tool to the battery terminals with battery test cable red to positive terminal black to negative terminal Rock each clamp back and forth to make a good connection 3 Tu...

Page 88: ... The tool will display a list of battery types for selection Figure 9 3 Select the right type of battery and press OK button to continue Figure 9 3 6 Select the battery s capacity rating standard The standard and the rating units required in step 7 are printed on the battery label If the information is unreadable please contact the battery manufacturer ...

Page 89: ...ss OK button to continue Then the screen shows as Figure 9 5 Press the UP DOWN scroll button to increase or decrease rating units by 20 units and then press OK button to confirm Figure 9 5 8 The scan tool will start the test and there may be three test results ...

Page 90: ...vice Figure 9 5 CHARGE BATTERY Fully charge the battery and retest Failure to fully charge the battery before testing may cause false readings If charge battery appears again after you fully charge the battery replace the battery Figure 9 6 BAD BATTERY Replace the battery and retest Figure 9 7 Figure 9 6 Figure 9 7 Figure 9 8 ...

Page 91: ...tall Maxi Link II applications through the included CD or download the applications from our website www autel com or our distributors site 2 Connect the scanner to computer with the USB cable supplied 3 Run Maxi Link II Tool Kit in your computer Figure 10 1 4 Use the UP DOWN scroll button to select Print Data from Main Menu in the scan tool and press the OK button Figure 3 1 5 Use the UP DOWN scr...

Page 92: ...nt the data in the textbox by selecting the icons on the upper right of window Print data Delete data Copy data Edit data NOTE Data stored in a language different from current system settings of the scan tool will not be printable Please adjust language settings before printing A reminder would pop up under such circumstances Print Data 1 9 Stored Codes Pending Codes Live Data Freeze Frame I M Rea...

Page 93: ...uct was altered or repaired by anyone other than the Manufacturer s Service Center 3 Autel shall not be liable for any incidental or consequential damages arising from the use misuse or mounting of the scan tool Some states do not allow limitations on how long an implied warranty lasts so the above limitations may not apply to you 4 All information in this manual is based on the latest information...

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Summary of Contents for AL539

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Autel AL539, Manual, Page: 62 / 93

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Summary of Contents for AL539

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