mssljackson

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Question Asked: My speedometer stopped working and the tpms light is on are they related?
May 14, 2011, 06:46 AM
I have checked the tire pressure and the tpms light will not go off. Also, the check engine light is on. Are these things related? What type if speedometer system does my car have?
Problem Reported: Speedometer Not Working and/or Code P0722 Stored in PCM
January 10, 2011, 12:43 PM

The speedometer may stop functioning with code P0722 stored in the powertrain control module (PCM). This may be caused by a worn speedometer gear due to coolant contamination of the transmission fluid. If contamination is found the radiator is most likely at fault. The transmission should also be thoroughly inspected and repaired or replaced as required.

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