DTC Set Conditions
WARNING: This page is about a different car, the 2005 Dodge Stratus and 2005 Chrysler Sebring. However, it is still accessible from the selected car via links, so may be relevant.
If the crankshaft position sensor does not detect an output pulse for more than 5 seconds while driving more than 25 km/h (16 mph), it is judged that there is an open circuit in the crankshaft position sensor and DTC 21 is set.