Jan. 19, 2012
-- No matter the type of OBD scanner you are using, the process of erasing and clearing diagnostic codes on a truck is very simple. So you don't need a professional OBD diagnostic computer to clear ABS or OBD codes. Whether you are trying to clear OBD codes or ABS brake service light codes, the process is essentially the same. All three OBD code scanners connect to the same data link connection port and this diagnostic computer connector is usually located under the truck's instrument panel and steering column. Nulling out the code takes only several minutes.
You'll Need Diagnostic scanner for this job.
Connect the diagnostic scanner to the data link connection under the steering wheel. This connect is usually made of hard black plastic, and it features 16 pin receptors. Each "slot" is dedicated to a different purpose. The location of your truck's data link connection and purpose of each receptor may defer by make and model. You can look up how to connect your specific truck online.
Power the scanner on and put your key in the truck's ignition and power it on. If simply powering on the electrical system does not establish a connection with the diagnostic system, launch the truck's engine.
Wait for the error code to display on the screen. This would take several seconds.
Find out and press the "Clear" button. On some scanners, it might be marked "Erase" or some other similar button. Look up the manual specific to your hardware for exact instructions. This will erase the trouble code from the specific diagnostic system you have. Unless you have an expensive diagnostic computer, one type of scanner cannot wipe the codes from another system. An ABS scanner, for instance, cannot erase OBD trouble codes. Power the truck off and unhook the diagnostic scanner.
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