Niko Posted March 7, 2022 Report Share Posted March 7, 2022 Since November, our C-Max Energi has been experiencing sporadic errors and the following is displayed when reading out the error codes: P0AA6 Raw code: 0AA6 ECU: 7EC Status: Steht aus OBDII: Hybrid battery voltage system - isolation fault There must be an insulation fault somewhere in the HV system. Ford Germany no longer does service for this car (too less sold), so now I have to look for the fault myself. Can anyone help me with the following questions: Does anyone know this fault? Where could be most likely the insulation fault? Plug connectors, modules, or HV-battery. Where can I get a circuit diagram? It is strange that the error only occurs when the battery is charged. As long as one drives only in the hybrid mode the error does not occur. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.