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Q: Dsc malfunction, engine service soon, and engine malfunction reduced power.

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After stepping at the gas engine service soon came on the screen. Also the car started shivering. And engine malfunction reduced power showed up and when I hit 40mph the Dsc malfunction comes on and the car does go only 15 to 10 mph.
My car has an automatic transmission.

A: The most common cause for the DSC coming on...

The most common cause for the DSC coming on is a speed sensor at one of the wheels not working properly. The Check Engine Light comes on anytime a critical system is having a problem. The reduced speed is due to the engine control module that has not seen a major failure of a critical function and going into failure mode. You need to have the Check Engine scanned for codes and diagnosed. Once the scan is done and code is retrieved, then a pinpoint test for the code(s) will locate the cause of this problem.

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