Auto zone will read the codes for free.
The present code will have to cleared or erased using a OBD-II code scanner. If the problem hasn't been fixed though then the light will come back on. You can buy one of the scanners from any auto parts store now. Some of them are less than a 100 bucks. Good luck.
P0203, injector number three circuit malfunction.
Trouble code P0340 means:Camshaft position sensor circuit malfunction
Trouble code P0340 means:Camshaft position sensor circuit malfunction
radio is overheating. go buy a new one
Idle speed on a 2000 Dodge Dakota is computer controlled and is not adjustable. If the speed is incorrect there is a mechanical or sensor malfunction.
the problem is in your high beam switch. there is a short in it and it needs to be replaced
The airbag computer has detected a malfunction. This is not a DIY repair. Take it to a professional.
That is an indicator to upshift with a manual transmission.
Trouble code P0720 means:Output speed sensor circuit malfunction
Trouble code P0443 means:Evaporative emission control systempurge control valve circuit malfunction
Trouble code P0161 means:O2 sensor heater circuit malfunction (Bank 2 Sensor 2)