Don't just look for DTC's, check Monitor status. This is a fundamental that *%#*Do It Yourselfers do not understand. Ideally what you want to see is all monitors list out as 'OK' (complete) or N/A (not applicable) and no DTC's (diagnostic trouble codes). When checking for DTC's also check monitor status. Just Clearing the DTC's will not typically work because when the monitor 'runs' (tests the system or a component) again it will find the same problem again and set the same DTC again. Call in a professional to FIX the problem. This really is the best course of action.
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