Tips on how to Read Pontiac Montana Service Engine Soon Codes 1The Pontiac Montana is equipped with an OBD-II bus that is study by plugging in an OBD-II scanner auto diagnostic. The tool is out there at automobile parts stores or from automobile parts departments. Affordable units price much less than $50 and can display the code or codes which might be causing your Service Engine Soon light to come on. A lot more high-priced units are programmed with explanations of the codes, but if the unit you use doesn't have this function, you may look up the codes on line.
2The OBD-II port is positioned straight underneath the dash of your Montana on the driver's side. It is a female connection, consisting of 16 pin holes enclosed in tough plastic. Plug the OBD-II scanner cable together with the 16-pin male attachment in to the OBD-II port. (Some OBD-II scanners will not be GM-specific and will demand the use of an adapter, generally integrated with your scanner.) The scanner's connector and also the port are each "keyed" so that you cannot connect them backwards.3Turn on your OBD-II scanner, then turn your Montana's ignition to "on," but do not start the car.4
The OBD-II scanner will have a button or a display prompt that asks you if you want to study diagnostic trouble codes. This exact procedure varies from OBD-II scanner to OBD-II scanner.5After a brief period of time (generally no additional than 10 seconds), the OBD-II scanner will display the result or results. It will include numbers or a combination of letters and numbers, for example, "P0440." If there is additional than one DTC, your scanner will prompt you with "See next code?" or a similar message. Write down the DTC or DTCs that the scanner displays.6Look up the DTC explanation using an online list of all GM diagnostic codes. (See resources.) Then Car Diagnostic Tools, call your mechanic and tell them the DTC explanation. They should be able to tell you when the DTC is major (you should immediately bring your vehicle in for service) or if it truly is minor (it is possible to wait until a more convenient time to bring your vehicle in for service).
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