U0420-Invalid Data Received From Power Steering Control Module
WARNING: This page is about a different car, the 2019 Jeep Compass. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
Treat this DTC as an INMPLAUSIBLE DATA DTC when performing the COMMUNICATION DIAGNOSTIC PROCEDURE.
Perform the COMMUNICATION DIAGNOSTIC PROCEDURE. Refer to COMMUNICATION DIAGNOSTIC PROCEDURE .