VOLVO SID807 & SID807EVO

PLEASE MESSAGE FIRST! BEFORE!! PRESSING BUY NOW THIS COMBINATION OF ECM & CEM ARE VERY COMPLEX AND REQUIRE A SPEICAL WAY OF SYNCHRONIZATION WHICH SOME COMBINATIONS DO NOT WORK PLEASE PROVIDE THE CAR MAKE AND MODEL. AND WHAT MAY HAVE HAPPENED LEADING UP TO THE FAILURE. , FAILURE TO DO SO LEADS TO DELAYS!

These modules can lose sync from voltage drops IE. Dead or dying battery...
or sometimes happens when the battery is disconnected.

Some of the common symptoms are:
Car not starting due to loss of communication with the CEM unit (central electronic module)
and a message appearing saying *IMMOBILISER TRY START AGAIN*

POSSIBLE FAULT CODES
C326 Communication control module
C326 Communication control unit Permanent