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A check engine light can indicate a broad spectrum of problems with your 2004 Lexus LS430. In some cases you need to pull over immediately to prevent damage while in others you merely need to tighten you gas cap next time you stop in order to reset the service engine soon light. The video above shows how to locate the on board diagnostics (OBD) plug on your 2004 LS430, how to read the trouble codes and how to reset or clear the check engine light using a scanner on your LS430.
Intermittent Check Engine Light: If the check engine light on your 2004 LS430 is intermittent, try to take note of the conditions when this happens. For example, does it happen when you accelerating, driving on the highway or does it appear at low speeds? This will help your mechanic evaluate the issue. Steady Check Engine Light: If your check engine light is on every time you operate your LS430, you need to have it checked as soon as possible, especially if you notice performance problems or unusual noises. Flashing Check Engine Light: If your check engine light is flashing, stop driving your LS430 and have it towed to your nearest mechanic - you probably have a very serious problem with your car and you risk ruining your engine by driving it. If you are unsure about what your diagnostic trouble codes mean; have your LS430 diagnosed by a professional automotive technician.
Don't be the guy with your third brake light burnt out2004 Lexus LS430 4.3L V8
Do you ever get into your friend's car and notice a bad smell? A dirty cabin air filter could be the culprit2004 Lexus LS430 4.3L V8
If your brake fluid is a little low, learn how to add some here. Ignoring a low level leads to big problems2004 Lexus LS430 4.3L V8
Coolant hoses wear out over time and need to be replaced - check 'em early and often2004 Lexus LS430 4.3L V8
Leaking coolant is usually a sign that your water pump needs to be replaced. This video shows you how to quickly plug it2004 Lexus LS430 4.3L V8
Don't send mixed signals - if your turn signal doesn't blink, or blinks rapidly, you likely have a burnt out bulb2004 Lexus LS430 4.3L V8