CAN Message T_ANS Invalid (FFh)

DTC P1884
CAN Message T_ANS invalid (FFh).

Possible causes:
- Air intake temperature measurement fault present in engine management ECM.

Air intake temperature measurement fault present in engine management ECM.
CHECK THE FOLLOWING:
- Read ECM fault codes and diagnose any faults likely to cause problems with air intake temperature measurement.
POSSIBLE FAULTS
- Fault codes set in engine management ECM.