How to Do Convert OBD2 to OBD1

On-board diagnostics (OBD) monitors any problems with your vehicle. It also alerts you when the vehicle fails below performance requirements. OBD1 and OBD2 are two types of OBD systems. If you desire OBD1 over OBD2, you can convert the system back to its original self. An OBD1 jumper harness allows the on-board diagnostic system to perform like an OBD1. The process takes some time, but with a little patience you can get the job done.

Purchase an OBD1 jumper harness. Your automotive professional may have such a harness for your system. Alternatively, you can purchase one at many automotive stores. This allows you to convert your OBD2 to an OBD1 system.

Locate the OBD2 in your vehicle. It should be within three feet of the steering wheel. Examples would be under the dash, in front of the passenger seat, behind the ashtray or in or around the center console.

Locate the ICM (Ignitor) input port. Connect the yellow and green wire from the jumper harness into it.

Look for the CKP (Crank Position) input. Attach the light blue and white wires into it. Insert the yellow and black wires into the CYP (Cylinder Position) inputs.

Locate the TDC (Top Dead Sensor) input ports. Insert the green and red wires into those ports.

Plug the dark blue wire into the RPM Lead Signal input ports. Attach the black and yellow wires to the remaining RPM ports.

Instructions for the OBD-2 Scan Tool

In 1996, the U.S. auto industry shifted to a standardized diagnostic system in regard to automotive repair. Before 1996, computerized engine diagnostic systems were designed for particular car manufacturers and their specific systems. These first generation on-board diagnostic systems are now referred to as OBD-1. In the new standardized system, or OBD-2, a scan tool can retrieve “pending” and “trouble” codes to diagnose engine problems in any OBD-2 compliant vehicle. Operation of the scan tool is fairly simple. Although the system is standardized, there are slight variations by scanner brand and users should always consult the tool’s manual.

Consult your manual for precise operational steps before proceeding. Button configurations are different by brand of scanner, and their programming and operational systems are all different. While you are consulting your manual, locate the generic OBD-2 code descriptions. Most manuals will have them, usually towards the back and in an appendix. Familiarize yourself with the scanner’s read-out icons, paying special attention to how the scanner will differentiate between trouble codes and pending codes.

Sit behind a computer, open your web browser, and navigate to a webpage listing manufacturers’ supplemental OBD-2 codes. Your scanner’s manual will likely only have the generic codes universal to all vehicles, and your vehicle’s manual will not have these codes. Print out the supplemental codes. If you have a Haynes Repair Manual for your vehicle, you can skip this step.

Open the vehicle’s driver’s side door and place the scanner’s manual and the printed material into the passenger’s seat. Insert your key into your vehicle’s ignition, but leave it unturned. You will return to the key and the printed materials later.

Locate the Data Link Connection in your vehicle. This is a standard diagnostic port found in all OBD-2 compliant vehicles. It has 16 pin-receivers and is usually black or gray. The DLC’s exact location varies by make and model, but it is usually underneath the dashboard and somewhere between the left kick panel and the gas pedal. In some vehicles, it will be in a special covered compartment.

Hook up your scan tool to the DLC. This is the point where variations in scanner operations begin. Some scanners will sense the diagnostic system and turn on automatically. Others may need to be switched on by pressing a power button.

Turn the key in the vehicle’s ignition. Some scanners need only the electrical system on, while others need the engine running.

Key in a command to “read,” “scan,” or “retrieve.” Some scanners will automatically do this.

Look at the scanner’s read-out screen and differentiate between what is a pending code and what is a trouble code. When the OBD-2 system detects a malfunction, it assigns it a code but classifies it as “pending.” If the problem persists, the code becomes reclassified as “trouble” or “fault” and the vehicle’s check engine lights up. Always pay attention to the trouble codes first.

Consult the printed material and the scanner’s manual to find a description of the problems affecting your vehicle. With this information, you can decide whether you need to take the vehicle to a mechanic or if you can perform the repairs yourself.

Turn the vehicle’s engine and/or electrical system off. Switch off the scanner and remove it from the DLC.

About OBD II Automotive Scan Tools Engine Analyzers

The on-board diagnostic (OBD) system is an outgrowth of the effort to restrict harmful emissions from cars. Manufacturers adopted sophisticated electronic sensors to monitor engine efficiency, paving the way for OBD monitoring of a number of auto performance parameters. Scan tools read the signals emanating from the OBD sensors.

Background
After an initial period during which automobile manufacturers used individual diagnostic systems, a uniform standard emerged under the aegis of the Society of Automobile Engineers (SAE). OBD-II represents the second generation of these universal standards, mandated by Congress for all cars produced in 1996 and later.

Function
Though engine performance and emissions control remain the central focus of the OBD system, it has expanded to include other indications of a car’s performance. When the OBD computer registers a fault in one of the monitored components, it usually results in the Check Engine light displaying on the car’s dashboard. Mechanics use OBD scan tools to identify problem areas through readings taken by the various OBD sensors placed throughout the car and to monitor the performance of the vehicle.

Types
OBD scan tools range from simple, hand-held models to expensive, console-sized scanners for professional technicians. A car owner interested in performing his own maintenance can connect a scan tool to his automobile’s dataport, usually located to the left of the steering column, to obtain a diagnostic code. Translations of the codes are widely available online.

How to Build an OBD2 Scanner

OBD2 is an upgraded version of the OBD1 connection port that links to a vehicle’s central computer. This computer contains information about your vehicle’s performance. To access the information from your car’s computer, you need to build a scanner that hooks up directly to the computer. This is done by using a OBD2 cable and a standard laptop computer.

Check your owner’s manual for the exact placement of the OBD2 port. In most cases this is in the fuse box, which is typically located right under the steering wheel.

Insert the software installation CD into the disc drive of the computer, then wait for the installation wizard to load onto the screen. Accept the end-user agreement of the program (it is provided with the OBD2 cable), then follow the prompts to install the software.

Plug the OBD2 end of the cable into the OBD2 port on your vehicle, then attach the USB port into your computer.

Launch the installed software and you are ready to begin using the computer to monitor your vehicle’s performance.

How to Reset the OBD II Codes in My Chevrolet 2001 Impala

Since 1996, all cars in the United States have used the standardized On-Board Diagnostics Series-II system. OBD-II differs from all previous systems not only in its complexity and capability, but in the fact that the programming language has been standardized so that service personnel don’t need to use a different computer system to diagnose each brand of car they work on. Clearing the codes from an OBD-II car like the Impala is a simple matter; just ensure that you fix the problem before clearing them so the check-engine light doesn’t come back.

Locate the OBD-II diagnostic port under the dashboard, beneath your steering wheel. The OBD-II diagnostic port is a trapezoidal port that strongly resembles the port on the pack of your computer where the monitor plugs in. There is a black or orange plastic plug covering the port; remove it.

Turn your car key to the “On” position, but do not start the car. Plug your code scanner into the port and give it a moment to access the codes. After displaying the code, the scanner will give you the option to clear it. Select “Yes,” unplug the scanner and replace the cover.

Clear the codes by resetting the computer. The alternative approach here is to reset the computer by depriving it of power.

Pop the hood, loosen the negative battery terminal and remove the terminal. Allow the car to sit for five minutes, then replace the terminal and tighten it. The only downside to this approach is that disconnecting the battery will clear the computer’s entire stored memory, including your clock and radio settings.

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FG Tech Galletto 2-Master V54 BDM-OBD is a famous chip tuning tool for all cars, trucks, motorcycles, Marine, BDM MPCxx, checksum. This item cannot only work as fgtech galletto 4-Master, but can also work for BDM-OBD.
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DS17 Infineon Tricore Boot Reader

DS17 Infineon Tricore Boot Reader is an updated version for BDM100, it takes direct access on processor and EPROM memory of the ECU over a dedicated port like the BDM system.
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DS17 support:EDC17/MED17/ME17/MEV17/MEVD17/PCF2.1/SD13/SD14/SD16/SID208/SID807.
DS17 Infineon Tricore Boot Reader
Commonly named as bootmode this port is the Infineon pendent to the Motorola/Freescale BDM port. In contrast to the BDM port, whose pins only have this purpose, the bootmode is done over one of the CAN busses of the processor.

Because new assembled ECUs are programmed over this port, Bosch has put it on a 14 pin pad array. It looks like the BDM port but works completely different.

To put the processor into the bootmode a modification on the printed circuit board is necessary. This modification depends on the type of the processor and so the type of the ECU. In the most simple case one pin of the processor must be connected to ground. Therefore a contact needle with a wire and a tripod is attached to the system.

The power is also supplied over the probe, but is spite to the BDM system the voltage is not manually switchable but automatically controlled by the DS17.

Click here to see DS17 Reader vehicle List

Ialtest Link Coder Reader For Freightliner Renault Hino Trucks

ialtest Link Coder Reader For Paccar Peterbilt Kenworth Freightliner Sterling Westernstar International Mack Renault Hino Trucks.It is a good detector, he had read fault codes, sensor data measurement, calibration features ECU.
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MST-100P 8 in 1 Handheld Motorcycle Scanner

MST-100P 8 in 1 Handheld Motorcycle Scanner with 3.2 inch TFT display, support 8 Motorcycle and more, is high cost-effective scanner.
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MST-100P Features:
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3. Support modles: SYM, KYMCO,YAMAHA,PGO,SUZUKI and Hartford, AEON,Honda( more motor brands will be add in future).
Function:
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3. Read DTCs
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Original Mercedes Benz NEC PRO57 Key Programmer

Original Mercedes Benz NEC PRO57 is the most powerful Benz key programmer in the world that support NEC. No need disassemble, support read EIS data via IR, support add smart keys. Many more functions is included only in NEC PRO57.
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8. Keyless go Key Programming