1 obd ii system tester '$# vehicle service information . . 2 safety precautions . . . . . . . . . . 3 section 1:welcome to the obd ii system tester . . . . . . 4 1-1 overview . . . . . . . . . . . . . . . . . . . . . 4 1-2 the obd ii system tester . . . . . . . . 4 1-3 diagnostic connector and locat...
2 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 parts stores or your local public library. For others, you need to write for availability and pricing, specifying th...
3 safety precautions general safety guidelines to follow when working on vehicles t o prevent accidents that could result in serious injury and/or damage to your vehicle or test equipment, carefully follow these safety rules and test procedures at all times when working on vehicles: always wear ap...
4 section 1: welcome to the obd ii system tester 1-1 overview obd ii (on-board diagnostic, second generation) systems are designed to meet or exceed a set of standards and regulations designed to improve air quality. The environmental protection agency (epa), in conjunction with california air resea...
5 1-4 operating the obd ii system tester powering-up connect the obd ii system tester to the dlc. This connection will provide power for the obd ii system tester. The dlc contains power even when the ignition is turned off. Connection to the battery is not necessary. When the obd ii system tester po...
6 display the obd ii system tester has a 4 line x 20 character liquid crystal display (lcd) for easy viewing. This helps make the obd ii system tester more user friendly by offering a large viewing area to display most help and instructional messages. This puts more information on the display to r...
7 occasionally, you may be asked a question by the obd ii system tester. These will always be yes or no questions, and are answered in almost the same way you make choices in a function menu. In these screens, brackets will automatically appear next to the default response. If you wish to accept the...
8 section 2: diagnosing with the tester 2-1 preliminary checks before using the obd ii system tester on your vehicle, it is a good idea to perform a complete visual inspection. You can find the cause of many driveability problems by just looking, thereby saving yourself a lot of time. Check the foll...
9 after you select obdii functions from the main menu the obd ii system tester will automatically link to the pcm and check the obd ii readiness monitors. Obd ii readiness monitors are strategies designed to test the operation of emission related systems or components. The pcm may perform special te...
10 when the tester has finished reading the dtcs, one of two possible screens is displayed. If there are no dtcs stored in the vehicles on-board computer, a system pass screen is displayed. If there are dtcs stored in the vehicles on- board computer, then the obd ii system tester displays the nu...
11 note: if you get an operating error message, make sure the dlc adapter cable is securely attached, and the ignition key is on, then try again. If the problem remains, refer to section 4: on-line help and trouble-shooting tips. If any of these tests indicate a fault, the dtcs will be displayed in ...
13 after selecting view freeze data, the obd ii system tester establishes a communication link to the vehicles pcm. All pids supported by the vehicle are displayed. Use the up and down arrow keys to scroll through all se- lected data parameters. When done, press the back key to return to the obd ii...
14 the obd ii system tester initializes by establishing the time intervals and then recording the first five frames of data. When done, the system tester is ready to record data. To cancel this function, press the back key to return to the obd ii function menu. If manual trigger was selected, then t...
15 if a recording does not exist in the obd ii system testers memory, then the message no recording present, please make record- ing first will display. The record data function must be performed in order to play back the data. Press the back key to return to the obd ii obd ii function menu and s...
16 o2 monitor test note: this is not an on-demand test. The o2 sensors are not tested when this menu selection is made. The o2 sensors were tested at an earlier time when engine operating conditions were correct. Obd ii regulations require the vehicle to monitor and test the oxygen sensors. The o2 m...
17 non-continuous tests the purpose of this function is to obtain test results for emission-related powertrain components and systems that are not continuously tested. Certain tests are run only once per drive cycle when the vehicle is within proper operating conditions. This function reports the te...
18 on-board systems the purpose of this function is to allow the obd ii system tester to control the operation of vehicle component, test or system. Certain manufacturers do not allow obd ii system testers to control vehicle systems. A screen informing you that the vehicle does not support on boards...
19 a message will state whether the on-board readiness tests are complete or not all supported on-board tests are complete. Press the down arrow key to view the monitor list with their status. Use the vehicle service manuals for detailed information on required emissions-related monitors and thei...
20 section 3: diagnostic trouble code lookup code lookup is a built-in obd ii generic diagnostic trouble code (dtc) database. The database does not include manufacturer specific dtc definitions, only generic. To look up code definitions, select code lookup from either the main menu or the obd ii fun...
21 _ lookup the codes definition press the enter key to display the codes definition. When done, press the back key to return to the code lookup menu. _ scrolling the code definitions once a code definition screen is displayed, you may use the up/down arrow keys to scroll through the library of co...
23 4. One or more modules drops the communication link: when the obd ii system tester initially links to the vehicle, it builds a list of all obd ii compliant computer modules. If in the course scanning the vehicle, a module drops the link, a message will display. Answering yes will continue operati...
24 the tool self-test menu will display. Two tests can be selected, the display test and the keyboard test. Use the up/down arrow keys to move the cursor to option of your choice, then press the enter key. Display test after you have selected display test as your choice, a screen detailing the test ...
25 appendix a: vehicle computer basics basics of computer-controlled vehicles this section explains the engine computer control system, the types of sensors and how the computer controls engine fuel delivery, idle speed and timing. Additional information may be found in technical support books at yo...
26 the network of sensors has the job of converting information the computer needs into electrical signals the computer can understand. Signals running from sensors to the pcm are referred to as inputs. sensors monitor the key parameters shown in the table. Note: not all engines use every sensor l...
27 open and closed loop modes: open or closed loop operation refers to the way the computer is deciding how much fuel to add to the air entering the engine. During cold start and other low temperature situations, the computer operates in open loop mode. This means that it is relying on a set of inte...
28 about diagnostic trouble codes (dtcs) where do they come from and what are they for? Engine computers can find problems the computer systems in todays vehicles do more than control engine operations they can help you find problems, too! Special testing abilities are permanently programmed into ...
29 kal makes it easy to fix computer-controlled vehicles using the kal obd ii system tester to obtain trouble codes is fast and easy. Trouble codes give you valuable knowledge - whether you go for professional service or do it yourself. Now that you know what trouble codes are and where they come fr...
30 poorly running engine, no malfunction indicator lamp most likely, this condition is not due to computer system failures, but reading codes can still be useful as part of a basic troubleshooting procedure. Check wiring and bulb for check engine light failures. Refer to vehicle service manual f...
31 appendix b: data parameter list & definitions all data parameters or parameter identification data (pid) listed in appendix b were verified on actual vehicles to guarantee their accuracy. Definitions used to describe all pids were obtained from reliable sources and are accurate at the time of pri...
32 coolant (°f) (engine coolant temperature - pcm input) coolant (°c) display: numeric temperature value: -40 to 419 (°f) or -40 to 215 (°c). This is a measure of the engines coolant temperature. A voltage signal is sent to the pcm from a sensor that is in contact with the coolant. The voltage sign...
33 iat temp (°c) (intake air temperature - pcm input) iat temp (°f) display: numeric temperature value: -40 to 419 (°f) or -40 to 215 (°c) this is a measure of intake air temperature to determine correct air/fuel ratios and spark timing operations. The voltage from a thermistor in the intake manifol...
34 map (hg) (manifold absolute pressure - pcm input) map (kpa) display: numeric inches of mercury (hg) or kilopascals (kpa) the manifold absolute pressure sensor converts intake manifold vacuum or pressure to an electric signal and sends it to the pcm. The pcm converts this signal into a numerical...
35 secondary air (secondary air system status - pcm output) display: upstr, dnstr, atmsp the secondary air injection system on newer vehicles is controlled by the pcm. The pcm use actuators to control this pollution control system. Secondary air can be added the exhaust system near the exhaust manif...
36 a/c: air conditioning. A/f: air/fuel ratio. This refers to the proportion of air and fuel delivered to the cylinder for com- bustion. For example, if you have 14 times more air than fuel (by weight) then the a/f ratio is 14:1 (read as fourteen to one). The ideal operating a/f ratio in an automo...
37 ckp ref: crankshaft reference. Ckp: crankshaft position sensor. Closed loop (c/l): this is when a control system performs an action (expecting a certain result), then checks the results and corrects its actions (if necessary) until the desired results are achieved. Example: fuel delivery. The pcm...
38 diagnostictrouble codes: diagnostic trouble codes (dtc) indicate a malfunction flagged by a vehicle com- puter. The computer will display a corre- sponding code based on a lookup table in the program of the on-board computer. Most systems have the ability to store codes in memory, which are commo...
39 egr: exhaust gas recirculation. The egr sys- tem recirculates exhaust gases back into the intake manifold to reduce nox emis- sions. The egr valve controls the flow of exhaust gases back into the intake mani- fold. Some egr valves are operated with a vacuum signal while others are electrically co...
40 hall effect sensor: this sensor is a three wire-type of sensor containing electronic circuitry. Two wires supply power and ground, while a third wire carries the sensor signal back to the pcm. The sensor consists of a perma- nent magnet and a small module con- taining a transistorized hall effect...
41 maf: mass air flow sensor. This sensor mea- sures the amount of air entering the engine using a wire or film heated to a specific tem- perature. Incoming air cools the wire. The maf sensor sends a frequency or voltage signal (depending on sensor type) to the pcm based on the voltage required to m...
42 delivered (the pcm assumes everything in the fuel system is performing properly). In open loop operation, the pcm does not check the actual amount of fuel delivered. Thus, a faulty fuel injector or incorrect fuel pressure can change the amount of fuel delivered and the pcm would not know it. In g...
43 pcm uses sensors to measure such things as throttle position, coolant temperature, engine speed, incoming air mass and tem- perature, etc. Sfi or sefi: sequential fuel injection or sequential elec- tronic fuel injection. A fuel injection system that uses one or more injectors for each cyl- inder....
44 vin: vehicle identification number. This is the factory-assigned vehicle serial number. This number is stamped on a number of locations throughout the vehicle, but the most prominent location is on top of the dashboard on the drivers side, vis- ible from outside the vehicle. The vin includes inf...
45 notes.
46 notes.
47 notes.
48 three (3) year limited warranty actron manufacturing company (actron) warrants to the original purchaser that this product will be free from defects in materials and workmanship for a period of three (3) years from the date of original purchase. Any unit that fails within this period will be re...
