DTC Detection Logic
WARNING: This page is about a different car, the 2012 Infiniti M35h. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
- If DTC P31AC is displayed with DTC UXXXX, first perform the trouble diagnosis for DTC UXXXX. Refer to
"DTC INDEX ".
- If DTC P31AC is displayed with DTC P0A1D, first perform the trouble diagnosis for DTC P0A1. Refer to
"DTC LOGIC ".
| DTC No. |
Trouble diagnosis name (Trouble diagnosis content) |
DTC detecting condition |
Possible cause |
| P31AC |
COMMUNICATION ERROR (Lost communication with ADAS control unit) |
When HPCM is not transmitting or receiving CAN communication signal with ADAS control unit. |
ADAS control unit |