DTC U0327 Software Incompatibility with Vehicle Security Control Module: Description
WARNING: This page is about a different car, the 2009 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
The main body ECU will store this DTC when no signals can be received from the certification ECU while the CAN MS main bus is normal.
DTC DETECTION CONDITION AND TROUBLE AREA
| DTC No. | DTC Detection Condition | Trouble Area |
|---|---|---|
| U0327 | No communication from certification ECU continues |
|