9620 Global OBD II Scan Tool
Table of Contents Vehicle Service Information ......3 Safety Precautions .....................4 Section 1: Vehicle Computer Systems ------------- 5 1.1 Introduction ..................................... 5 1.1.1 What The Computer Controls . 5 1.1.2 What Has Not Changed .......... 5 1.1.3 Computer Control System ...... 5 1.2 Data Link Connector and Location . 6 1.3 OBD II Scan Tool Hookup ................ 6 1.3.1 Keyboard ................................. 7 1.3.2 Display .....................................
Vehicle Service Information The following is a list of publishers who have manuals containing electronic engine control diagnostic information. Some manuals may be available at auto part stores or local public libraries. For others, write for availability and pricing, specifying the make, model and year of vehicle.
Safety Precautions General Safety Guidelines to Follow When Working on Vehicles To prevent accidents that could result in serious injury and/or damage to vehicle or test equipment, carefully follow these safety rules and test procedures at all times when working on vehicles: Always wear approved eye protection. Always operate the vehicle in a well-ventilated area.
Section 1: Vehicle Computer Systems 1.1 Introduction This section describes the engine computer control system, types of sensors and how the computer controls engine fuel delivery, idle speed and timing. Additional information may be found in the technical support books at your local library or auto parts store. The more known about the computer system, the easier the problem can be diagnosed.
1.2 Data Link Connector and Location The scan tool communicates with the vehicle PCM via a data link connector (DLC) also referred to as a J1962 connector. The term J1962 is taken from physical and electrical specification number assigned by SAE (Society of Automotive Engineers). A standardized DLC means all compliant vehicles will use the same DLC with the generic link information available on the same pins regardless of vehicle make or model.
1.3.1 Keyboard The scan tool software was designed for ease of use in navigating through operational menus. Simply follow instructions that match keyboard symbols. Keyboard Functions The scan tool uses 8 keys to navigate through the software-user interface: ENTER Used to select or answer a software request. HELP Used to request help when the (|) symbol is displayed in the lower right hand corner of the display. BACK Used to move one screen back in scan tool flow.
At the bottom of the list, there is now only an UP arrow symbol (]) visible in the last column indicating the last function in the list has been reached. To return to previous screens, press the UP arrow key. The UP/DOWN arrow keys work the same way when scrolling through text such as the Help screen. The Scan Tool may ask a question which requires a response from user. These will always be YES or NO questions, and are answered with cursor and Arrow keys.
1.4.3 Displaying Tool Information From Tool Setup menu, select Tool Information and press ENTER. Use UP/DOWN arrow keys to view information. Record information in case the need to contact customer service arises. Setup Tool For 1) English/Metric 2)Display Contrast `3)Tool Information 1.4.4 Tool Information: `Serial No: 1360447] SW ID: 86E3H[ HW Ver: 1 Program Mode Used to update scan tools software. Instructions will be provided with updates. 1.
Section 2: Diagnosing with the Scan Tool 2.1 Preliminary Checks Before using scan tool, perform a complete visual inspection. Many driveability problems are found by visual inspection, saving time. Check the following items before proceeding with scan tool testing: 1. Has vehicle been serviced recently? Sometimes things get connected in the wrong place, or not at all. 2. Dont take shortcuts.
After pressing ENTER from HELP Screen, the Main Menu displays. Select Vehicle Diagnosis and press ENTER. MAIN MENU `1) Vehicle Diagnosis 2)Tool Setup 3)Tool Self Test The scan tool asks to erase data from previous test. Use LEFT/RIGHT arrow keys to select a response and press ENTER. Erase Data From Previous Vehicle Test? YES A message displays Turn Key Off For 10 Seconds, Then Turn Key On and Then Press ENTER. Turn Key Off For 10 Seconds Then Turn Key On Then Press ENTER | [ 2.
will be followed by n/a. A monitor that has been completed is followed by ok. If not On-Board Readiness Tests Are Complete. Use [ To View Test completed, inc will be displayed. Use the UP/ DOWN arrow keys to scroll through the list. NOTE: In addition to displaying the state of the monitor since the last time DTCs were cleared, some vehicles will display the state of the monitors for this drive cycle.
Select Pending Codes and press ENTER key. The scan tool displays codes or a message stating SYSTEM PASS NO FAULT DETECTED. Press DOWN arrow key to view DTCs or press BACK key to return to OBDII Function List. System Pass: No Faults Detected. Press BACK Key For Function List Codes Found: 2 Use [ To View Codes Write Down Codes For Reference.. The codes display in same format as Read Codes. The DTC number and computer module that stored it display on first line. Use UP/Down arrow keys to view codes.
Entire Data List Select Entire Data List to display all PIDs supported by vehicle under test. Custom Data List To display only certain PIDs, select Custom Data List. The ability to display certain PIDs helps in diagnosing a specific driveability symptom or system. Select Data To View Entire Data List `Custom Data List View Data Setup If choosing to view a Custom Data List, the scan View Instructions tool asks if help is needed to view the For Creating Custom instructions.
2.3.6 View Freeze Data When an emission-related fault occurs, certain vehicle conditions are recorded by the on-board computer. This information is referred to as a Freeze Frame data. The information is a snapshot of operating conditions at time of a fault. This data can be overwritten by faults with a higher priority. NOTE: If codes were erased, then freeze frame data may not be stored in vehicle memory. Select View Freeze Data from the OBDII Function List and press ENTER.
The following O2 sensor tests are available: Rich to Lean sensor threshold voltage Lean to Rich sensor threshold voltage Low sensor voltage for switch time High sensor voltage for switch time Rich to Lean sensor switch time Lean to Rich sensor switch time Minimum sensor voltage test cycle Maximum sensor voltage test cycle Time between sensor transitions Select O2 Monitor Test from OBDII Function List and press ENTER.
Applicable tests are displayed . Select a test and press ENTER. Requested test results are displayed on Scan Tool Diag Mon Data Avail $01 $05 $10 NON-CAN VEHICLES [ ~ Diag Mon Data Avail O2 Sensor B1S1 Catalyst B1 EVAP (0.090) [ ~ CAN VEHICLES On Non-CAN vehicles Scan Tool displays: On the 1st line is where the test data (test ID) came from. On the 2nd line is the test heading. On the 3rd and 4th line is the test measurement (MEAS), specification value (SPEC) and status (STS).
If a recording currently exists in memory, a message prompting to erase data is displayed. Note: Make sure to review old recorded data before erasing Cannot Record. Old Recording Filled Up Memory. Erase Old? NO Scan tool retrieves a list of supported PIDs. After list is generated, scan tool prompts to select type of data to view. Refer to View Data described earlier in this section to setup Entire or Custom Data Lists. On next screen, select a method to trigger a Pick Trigger Method recording.
Scan tool displays VIN, Calibration ID, and CVNs if supported by vehicle. In example screens, MOD $10 returned data. Use UP/DOWN arrow keys to scroll . CVNs are shown as a hexadecimal number. VIN # 1 MOD $10 1F1FS11P0S2100001 [ Press BACK or ENTER to return to OBDII Function List. 2.3.12 Modules Present OBD II information may be provided by a single | module or many separate modules.
The scan tool informs if a recording does not exist. Otherwise, scan tool plays back Entire Data List or Custom Data List, depending on how data was recorded. The screen is composed of three lines of data and one line for the frame number and timestamp (in seconds). Negative frames and timestamps indicate data recorded before the trigger event. Positive frames and timestamps indicate data recorded after the trigger event. Use UP/DOWN arrow keys to scroll through the recorded PID data of each frame.
Next, select the parity and press ENTER. Finally, select the printer speed, FAST or SLOW, and press ENTER. Select Parity `None (Default) Odd Even Printer `Fast (Default) Slow Now that the printer settings are changed, it is time to verify the settings. Press the ENTER key to print the ASCII character set. The ASCII Character Set Will Be Printed Once Press ENTER To Cont. Follow the instructions displayed on the screens. Make Sure Printer Is Turned On, Online & Connected To Tool. Press ENTER To Cont.
Section 3: Diagnostic Trouble Codes (DTC) 3.1 DTC Format Diagnostic Trouble Codes (DTCs) consist of a five-digit alphanumeric code. The DTC format and types are shown below. When the on-board computer recognizes and identifies a problem, a DTC for that fault is stored in memory. These codes are intended to help you determine the root cause of a problem. P0 1 0 1 Bx - Body Cx - Chassis Px - Powertrain Ux - Network Comm.
3.2 Code Lookup Code Lookup is used to look up definitions of Diagnostic Trouble Codes (DTCs) stored in the scan tool. The scan tool does not require power from the vehicle to perform this function. Internal battery power can be used. To look up DTC definitions, select Code Lookup OBDII Function List | from the OBDII Function List and press ENTER. 13)Review Data 14)Print Data `15)Code Lookup NOTE: ] When entering codes, only one character can be changed at a time.
3.3 Diagnostic Trouble Code Ranges Within each general category, the Diagnostic Trouble Codes are assigned to specific ranges that cover certain vehicle systems. When displaying manufacturer-specific (or non-global), the assigned Diagnostic Trouble Codes displays the definition.
Section 4: Help and Troubleshooting Tips 4.1 How to Use Help The tester contains Help for specific screens, Operating Error. | functions, and error messages. Help is available Check Connections! when Help symbol (|) appears in upper rightTry Again? hand corner of display. No To enter Help, press HELP key. Help screens are in CAPITAL LETTERS to remind viewing Help screens, not screens associated with a function.
4.2.3 One or more modules drops the communication link: When the OBD II System Tester initially links to Module ($41) Has | the vehicle, it builds a list of all OBD II compliant Stopped Responding. computer modules. If in the course of scanning the vehicle, a module drops the link, a message Continue Without It? (YES) NO will display. Answering YES will continue operation without the lost module. Answering NO will try to restore the communication links to get all modules back to an active status. 4.2.
4.3.3 Memory Test Perform the Memory Test if the scan tool has trouble displaying code definitions or performing functions that use internal memory. Select Memory Test from the Tool Self-Test menu and press the ENTER key. The test begins immediately and displays a message Memory Test followed by periods as internal memory is tested. When done, a message displays indicating whether the test passed or failed. Press ENTER to return to the Tool Self-Test menu.
Appendix A: Global OBD II PID List & Definitions All parameter identification data (PID) listed was verified on actual vehicles to guarantee accuracy. Definitions used to describe all PIDs were obtained from reliable sources and are accurate at time of printing. It is possible that some newer vehicles may contain different data different from that listed. In these cases, refer to an applicable vehicle service manual.
CLR DST (0km-65,535km) or (0- 40,722miles) Distance Since Cleared Diagnostic Codes is distance since diagnostic trouble codes were erased. CLR TIM (0 - 65535 min or 1092.25 hours) Time Since Cleared Diagnostic Code is time since diagnostic trouble codes were erased. CMD EQ RATxy (0 - 1.99) Commanded Equivalence Ratio is the ratio of the air/fuel mixture. NOTE: The CMD EQ RAT will read 1.
IAT TEMP (-40 - 215°C) or (-40 - 419°F) Intake Air Temperature is a measure of intake air temperature to determine correct air/ fuel ratios and spark timing operations. IGN ADV (-64 - 63.5°) Ignition Timing Advance for cylinder is a signal of how much spark advance to add to base engine timing (expressed in crankshaft degrees). LT FL FTRM (-100 - 99.22%) Long Term Fuel Trim Bank is the fuel mixture adjustment in a range with midpoint being 0.
REL TPS (0 - 100%) Relative Throttle Position is relative throttle position at normal position. SECOND AIR (AIR_STAT: UPS, DNS or OFF) Commanded Secondary Air Status is on newer vehicles and actuators to control pollution control. UPS - UP STREAM module is demanding that secondary air be added at exhaust manifolds DNS - DOWN STREAM module is demanding secondary air be added at catalytic converter OFF - Module is demanding no secondary air to be added. ST FTRMxy (-100 - 99.
Appendix B:Glossary & Definitions A/C: Air Conditioning. A/F: Air/Fuel ratio. The proportion of air and fuel delivered to the cylinder for combustion. For example, an A/F ratio of 14:1 denotes 14 times as much air as fuel in the mixture. A typical ideal A/F ratio is 14.7:1. AC Clutch Relay: The PCM uses this relay to energize the A/C clutch, turning the A/C system on or off. AC Pressure Sensor: Measures air conditioning refrigerant pressure and sends a voltage signal to the PCM.
CKP REF: Crankshaft Position Reference. Closed Loop (CL): A feedback system that uses the O2 Sensor(s) to monitor the results of combustion. Based on the signal(s) from the O2 sensor(s), the PCM modifies the air/fuel mixture to maintain optimum performance with lowest emissions. In closed loop mode, the PCM can fine tune control of a system to achieve an exact result. CO: Carbon Monoxide Continuous Memory Codes: See Pending Codes. CPS: Crankshaft Position Sensor. Sends a frequency signal to the PCM.
EPA: Environmental Protection Agency. ESC: Electronic Spark Control. An ignition system function that warns the PCM when knock is detected. The PCM will then retard spark timing to eliminate the knocking condition. EST: Electronic Spark Timing. An ignition system that allows the PCM to control spark advance timing.
LT: Long Term fuel trim. M/T: Manual transmission or manual transaxle. MAF: Mass Air Flow Sensor. Measures the amount and density of air entering the engine and sends a frequency or voltage signal to the PCM. The PCM uses this signal in its fuel delivery calculations. MAP: Manifold Absolute Pressure Sensor. Measures intake manifold vacuum or pressure and sends a frequency or voltage signal (depending on sensor type) to the PCM.
Solenoid: A device consisting of an electrical coil which when energized, produces a magnetic field in a plunger, which is pulled to a central position. A solenoid may be used as an actuator in a valve or switch. SFI or SEFI: Sequential Fuel Injection or Sequential Electronic Fuel Injection. A fuel injection system that uses one or more injectors for each cylinder. The injectors are mounted in the intake manifold and are fired individually. ST: Short Term fuel trim. TBI: Throttle Body Injection.
