Home

OBD Link Connector User Manual Rev 14

1. 24V Present Blink Fast AE Tool Ltd www aetool com b If there is a negative voltage present in any Manufacturer Designated Pins the corresponding LED will light steady The Caution Voltage present LED will illuminate Pins 1 3 8 9 11 12 13 Volt Present Illuminate Ah 12V Present Blink Slow A 24V Present Blink Fast ha c If there is 24V present below 23 8V or above 29 2V in any Manufacturer Designated Pins the LED will blink fast The Caution Voltage present LED will illuminate Pins 1 3 8 9 11 12 13 Volt Present Illuminate 4 12V Present Blink Slow 4 24V Present Blink Fast 4 OBD2 Assigned Protocol Pins Blue Color Socket e Inthe event when there is a presence of voltage detected at OBD2 Designated Protocol Pins the respective LED in the socket will blink in different ways with corresponding alarm beeps AE Tool Ltd a If there is 12V present below 11 8V or above 15 2V the respective LED will blink slowly at interval of 1 sec between each blink with a short beep alarm for 5 sec The Caution Voltage present LED will illuminate Pins 2 6 7 1014 15 Volt Present Illuminate 4 Cy 5sec 12V Present Blink Slow 4m Ssec 24V Present Blink Fast A K 5sec If there is a negative voltage present the corresponding LED will light steady with a long beep alarm for 5 sec The Caution Voltage present LED will illuminate Pins 2
2. 2V for 24V system while doing programming or coding This feature will minimize any error while performing EPROM re flashing lt 14 8V gf 30sec gt 15 2V lt 23 8V af 30sec lt 29 2V l 30sec AE Tool Ltd www aetool com 3 DETECT COMMUNICATION PROTOCOL To monitor data stream and protocol being used when connecting the scan tool to the car OBD ports via OBD Link connector OLC LEDs Activities OBD Link Connector LEDs allows you to keep taps on power and ground It identifies the protocol used in the vehicle 1 RED LEDs Pin 16 automatically turn on as soon as you plugged into DLC RED LEDs turn dim when Low battery voltage refer to Voltmeter and alarm will beep below 11 8V for 12V system and 23 8V for 24V system Wiring to DLC pin 16 is faulty Grounds circuits have resistance issues 2 GREEN LEDs Pins 4 Chassis and 5 Signal automatically turn on as soon as you plugged into DLC Ground LED Pin 5 is connected to battery voltage via ECU Therefore a ground supply on pin 4 will not affect LED 5 A dim single green LED will indicate a circuit problem with the corresponding circuit In remote case where if there is reverse polarity the Green LED will turn into RED colour When this happens check the vehicle DLC connector for wrong polarity Rectify first and test again 3 BLUE LEDs Pins 2 6 7 10 14 and 15 LEDs should flash when serial data voltage pulses are present in the data line Blue
3. LEDs is assigned on pins 2 6 7 10 14 and 15 to indicate communication with scan tool or interface and for communication protocol identification It will turn on depend on your vehicle model For some vehicle model one or multiple blue LEDs will turn on as soon as the OBD Link Connector is connected and you start the ignition The brightness of the LEDs depends on the nature of the signal it s pursuing This OBD Link Connector can identify immediately the protocol used The better way to identify the protocol in use is to set up the scan tool or interface in to LIVE DATA This will lead in a constant data stream between the scan tool and the vehicle and then you can locate the LEDs that are flashing 4 YELLOW LEDs Pins 1 3 8 9 11 12 and 13 it should flash when your vehicle manufacturer use either one on the pins for any function they prefer Pin Assignments Pin SAE Designation 1 Discretionary 2 Bus Line of SAE J1850 PWM VPW 3 Discretionary 4 Chassis Ground 5 Signal Ground 6 CAN High of SAE J2284 ISO 15765 4 7 K Line ISO 9141 2 and ISO 14230 4 8 Discretionary 9 Discretionary 10 Bus Line of SAE J1850 PWM 11 Discretionary 12 Discretionary 13 Discretionary 14 CAN Low of SAE J2284 ISO 15765 4 15 L Line ISO 9141 2 and ISO 14230 4 16 Unswitched Vehicle Battery Positive AE Tool Ltd www aetool com Pins listed as Discretionary indicate that the vehicle manufacturers ma
4. and the Alternator 6 As Power Backup for ECU Keep Alive Memory KAM chip while replacing car batter Connect the OBDII cable with battery clips to OLC Turn ignition key to OFF position and connect the tool to the car DLC Attach the battery clip to an external battery not the battery from the same car If the external battery voltage is above 12V the battery volt indicator LED on the Data saver cable will light up Now it is ready to proceed for replacing the car battery After job done remove the battery clips from the external battery unplug OLC from the car To Car DLC Battery Volt Indicator LED The data saver cable comes with surge voltage protection short circuit and polarity protection AE Tool Ltd www aetool com 7 AS DC POWER SOURCE FOR OTHER DEVICES While connected to the DLC you can tap 12V or 24V depending on the power input at the DLC connector red banana socket pin 16 and Chassis Ground at black banana socket pin 4 to power other DC loads This voltage will also be displayed on its digital display SPECIFICATIONS Operating range Maximum Load Overload Protection Monitoring Voltages stop after 30 seconds Volt Displays Banana Sockets Protocols Detected Operating temperature Permitted Humidity OBD cable length Reverse Polarity protection Battery used on Lamp AE Tool Ltd To Car ECU 7 0 30 0VDC Input Up to 5 0 Amps Output Yes PTC Fuse Self heal
5. engine Recharge battery or replace battery AE Tool Ltd www aetool com gt 1 1 2 Pins LED Testing of the 16 pins individually will also begin immediately with the following conditions e To detect any voltage present on Car Manufacturer designated pins No 1 3 8 9 11 12 amp 13 yellow colour socket and OBD2 assigned protocol pins 2 6 7 10 14 15 blue colour socket other than pins 4 Chassis 5 Signal for grounding black colour socket and pin 16 red colour socket which is positive supply 12V or 24V Car Manufacturer Designated Pins ORD Link No 1 3 8 9 11 12 13 oe o 2 Connectors b vo e e OBDII Designated i TD ENR Protocol Pins CONNECION No 2 6 7 10 14 15 Pin 5 Signal Ground Pin 4 Chassis Ground ezz A 2 D e bd ee Connector Pin 16 Power eee e e When there is a presence of voltage positive or negative detected at a particular pin or other pins on the Manufacturer designated ones the LED at the socket will blink in different ways Depending on the voltage detected 1 1 3 Manufacturer Designated Pins Yellow Color Socket a Ifthere is 12V present below 11 8V or above 15 2V in any Manufacturer Designated pins the respective LED will blink slowly at interval of 1 sec between each blink The Caution Voltage present LED will illuminate Pins 1 3 8 9 11 127 13 Volt Present Illuminate TN 12V Present Blink Slow d
6. test With the OLC still attached to the vehicle DLC switch the ignition key to ON position then press Restart button on the OLC once Restart button The test starts immediately with the testing of all the 14 pins other than pin 4 chassis ground and pin 16 positive Voltage supply At the same time it will detect the type of communication protocol PWM VPW ISO 9141 2 ISO 14230 4 CAN H and CAN L that the ECU is using and the blue LEDs will blink indicating the protocol currently being used AE Tool Ltd www aetool com If any voltage present on vehicle Manufacturer designated pins No 1 3 8 9 11 12 amp 13 yellow colour socket other than OBD2 assigned protocol pins 2 6 7 10 14 15 blue colour socket and 5 Signal ground the corresponding LED will light in the following manners e lf there is 12V present the LED will blink slowly at interval of 1 sec between each blink The Caution Voltage present LED will illuminate Volt Present Illuminate T Y 12V Present X Blink Slow gh 24V Present Blink Fast 4h e If there is 24V present the LED will blink fast The Caution Voltage present LED will illuminate Pins 1 3 8 9 11 12 13 Volt Present illuminate A 12V Present Blink Slow 4 24V Present X Blink Fast 4 In situation where there is 12V or 24V present at the pin the voltage was either supplied direct short or through a resistor Its resistance value is normally not more
7. 6 7 10 14 15 OC Illuminate 4 MQ Ssec 12V Present Blink Slow I 5sec 24V Present Blink Fast 4 1 5sec www aetool com c If there is 24V present below 23 8V or above 29 2V the LED will blink fast with a loud beep for 5 sec The Caution Voltage present LED will illuminate Pins 2 6 7 1014 15 Volt Present Illuminate 4 lt 9 5sec 12V Present Blink Slow amp I 5sec 24V Present Blink Fast 4 1 5sec If any of the above situations is encountered do not plug in your Scan tool yet Please check and compare the OBD2 circuit connection with vehicle Repair Manual for the reason of the shorting This is because under normal circumstances when the ignition key is OFF the ECU is also in the OFF state and there will be no communication signals or voltage output to the rest of the pins except pin 4 which is chassis ground and pin 16 the positive power output supplied from the battery direct e With very remote chance unless the connections has been tampered when OLC encounters that there is a reversed polarity occurred the green LEDs at pin 4 Chassis and pin 5 Signal ground will light up and turns into red colour PE Normal In this situation do not plug in the Scan tool Check the source of the problem at the vehicle DLC and rectify it first before testing again gt 1 2 Test with ignition key in ON position If the first test did not indicate any problem then proceed with the second
8. Operating Manual OBD Link Connector A 1 5m Cable OBDILINK Connector 16 Suitable for 12V Cars amp 24V Trucks OBD Link Connector OLC provides the following functions when it is plugged into the car or truck Diagnostic Link Connector DLC port 1 TEST OBD2 PORT BEFORE PLUG IN SCANTOOL It performs tests on all the 16 pins of OBD2 port for abnormality caused by shorting reverse polarity etc to avoid damage to your scan tool prior plugged in 2 MONITOR VOLTAGE DURING REFLASH PROGRAMMING To monitor the OBD2 port power output in order to function properly during ECU programming adaptation or flashing 3 DETECT COMMUNICATION PROTOCOL To detect which type of communication protocol the ECU is using whether PWM J1850 VPW J1850 ISO 9141 2 DIS ISO 14230 4 or Can bus J 2284 4 AS BREAK OUT BOX To provide easy access to any of the 16 pins from the OBD2 DLC port for gathering of signal pulses when diagnosing with an oscilloscope for data logging when used with a Y cable easy activation of blink codes adjustment of idling rom etc 5 CHECK ALTERNATOR CONDITION To have a quick Alternator charging check during idling and high RPM conditions 6 As Power Backup for ECU Keep Alive Memory KAM chip while replacing car battery For the last 10 to 15 years car ECUs were designed to have Keep Alive Memory KAM chip that allows it to maintain normal vehicle performances by compensating for sensors and parts wears Th
9. e for Reset Adaptation or codes activation AE Tool Ltd www aetool com Some Typical Applications VW To protect the Scan tool such as aftermarket radios on VW s GM Transmitter Programming on some GMs Honda Set the ECM in SCS mode with your scan tool connected Lexus Help diagnose electronics systems Sirius GPS on pin 6 and 14 Bosch Troubleshoot Bosch controllers that short to ground Proton needs to short pin 1 to ground in order to access into OBD2 functions Toyota Avanza the base RPM can only be achieved by shorting pin 4 and 12 5 CHECK ALTERNATOR CONDITION With ignition key in OFF position plug OLC into the car DLC without connecting the scan tool Switch key to ON position and the volt LED will display the battery voltage Start the engine observe the voltage display while the engine is idling It should be above 12 6 Volts for 12V system or 25 2V for 24V system If not check for loose drive belt Then rev engine up to 3 000rpm and observe the change in voltage If the voltage is above 15 2 Volts for 12V battery or 29 2V for 24V battery the alarm will beep indicating that the charging voltage is too high In this case the regulator may be faulty and it needs to be checked Then switch ON all electrical loads rev engine to 2 000rpm and observe the changes in voltage at the tool The voltage should above 13 6 Volts for 12V system and 27 6V for 24V system If the voltage is below check for loose drive belt
10. ing Beeper ON below 11 8V between 15 2 to 24V higher than 28V Beeper 3 Digits LEDs Resolution 0 1V 16 outputs x 4 0mm diameter with LED lamp indications PWM J1850 VPW J1850 ISO 9141 2 DIS ISO 14230 4 Canbus J 2284 0 Deg C 50 Deg C 32 Deg F 122 Deg F Less than 70 1 5 meter Yes LED on pin 4 amp 5 turns Red 3V Lithium Battery Model CR1220 www aetool com
11. is KAM chip needs power to store all the Data gathered and it will lost if power is disconnected Therefore it is essential to provide power to the ECU while replacing the car battery 7 AS DC POWER SOURCE FOR OTHER DEVICES As Power source for other DC loads up to 5 Amps DC output at pin 4 Ground and pin16 Socket AE Tool Ltd www aetool com HOW TO USE 1 TEST OBD2 PORT BEFORE PLUG IN SCANTOOL Test is carried out with ignition key is OFF ON and engine running 1 1 Test without Ignition Key Connect the OLC to the OBD2 port on vehicle The testing of the DLC port starts automatically as soon as OLC is plugged into it This test is to check the condition of all pins before the ignition key is switched ON gt 1 1 1 Volt Meter LED As soon as it powers up the voltmeter will display voltage input Notice the alarm beeps on the following condition For 12V system The alarm Beeping will trigger ON one at a time for 30 sec when the voltage falls below 11 8V For 24V system The alarm Beeping will trigger ON twice at a time for 30 sec when the voltage falls below 23 8V Below REKI M 30sec Below FEJ A 30sec Alarm Beeps When the battery falls below 11 8V for 12V system or 23 8V for 24V system the alarm will come on In this case you may need to start the engine to run for some time to charge the battery or replace with a new battery and then test again 12V System lt 11 8 V 24V System Start
12. than 20Q However when a voltage OV is supplied from the other end of the Scan tool to this pin a current bigger than 0 6A will flow This indication serves as a warning when using Scan tool without current limiter built in because this voltage may damage it when plugged in In many cases Vehicle Manufacturers do provide some pins on the OBD2 Diagnostic Link Connector DLC at the vehicle for RPM signals or Sensors signals used for testing or adjustment These signals are usually found on any of the Manufacturer designated pins No 1 3 8 9 11 12 amp 13 on the DLC Therefore such signals will be detected and indicated as Caution Voltage Present In other words you can still plug in and use your scan tool but with risk in case where the Scan tool has no protection It is also important to note that the presence of voltage in one of the pins maybe one of the reasons why sometimes communication failed between Scan tool and ECU because of the presence of the 12V or 24V shorting However almost all Scan tools nowadays come with protective current circuit and this indication should not be accepted as danger but served as a warning gt 1 3 Test with Engine running When the second test has completed proceed with the third and final test With the OLC still attached to the vehicle DLC start and keep the engine running Press the Restart button on the OLC The test starts and it will repeat as in the second test but this time it
13. will test for over 15V or 29V presence while the engine is running AE Tool Ltd www aetool com If the voltage is higher than 15 2V for 12V system or 29 2V for 24V system the alarm will also come on In this situation the problem was caused by the regulator which had failed to regulate and cut OFF after reaching the preset charging voltage limit normally set below 15V Also if over 15 2V for 12V system or 29 2V for 24V system was detected at the input or any of the vehicle Manufacturer designated pins No 1 3 8 11 12 amp 13 yellow colour socket other than OBD2 assigned protocol pins 2 6 7 10 14 15 blue colour socket the LED will blink at a very fast pace The Caution Volt present LED stays ON In this case do not plug and test with the Scan tool while engine running as this high voltage input may damage it Check the charging volts to determine whether the regulator is functioning properly Under normal conditions when after all the testing of the vehicle DLC port has been done where there are no abnormal activities the green OK LED will light up This indicates everything is OK and it is ready for Scan tool to be plugged in SH OOK iota Volt oltage rive Present 2 MONITOR VOLTAGE DURING REFLASH PROGRAMMING It has voltage monitoring feature with Volts display which will give an alarm warning when the voltage falls below 11 8V or higher than 15 2V for 12 V System or below 23 8V or higher than 29
14. y used them for specified purpose Check with the manufacturer s specifications for these connections For voltage and current limits refer to SAE J1962 ISO 15031 3 3 Test tool must not draw more than 1 5 amps through the pin number 5 Signal ground Helpful Tips When activating some ABS and diagnostics wires to recover flash code you can use pin 4 If red power and green grounds LEDs turned dim or flickering when you plugged a scan tool supplied via DLC it indicate a problem with your vehicle wiring that causes the voltage to drop 4 AS BREAK OUT BOX Scan tool k o Vehicle This OBD Link Connector OLC is a pass through breakout box for the OBDII DLC diagnostic link connector It can be connected to your OBD II compatible tools such as scan tools code readers monitor readers or data loggers Any tool that uses a standard test lead or probe that use 4mm banana plugs including those with safety heaths can be plugged to OLC s 16 pins sockets these include lab scopes multi meter logic probes test lights etc to read the voltage resistance frequency pulse width or duty cycle Pin 16 sockets is protected by a self recovery fuse rated at 5 amps Jumper cable and Blink Code cables are standard accessory Jumper cable for direct pin to pin or stacking connection while scanning or perform special functions and tests Blink Code Cable Jumper Cable Blink Code Cable N O Normally Open contact switch cabl

OBD Link Connector User Manual Rev 14

Contents

Download Pdf Manuals

Related Search

Related Contents