CAT 3406E (Prefix 1MM or 2WS) Fault Code: 64 PID: SPN: 105 FMI: 0 High Intake Manifold Air Temperature Warning
The ECM detects the following conditions:
•The intake manifold air temperature is greater than 90 °C (194.0 °F) for more than four seconds.
•The engine has been running for at least 30 seconds.
•The engine coolant temperature is above 99 °C (210.0 °F).
Probable Causes
1) Coolant level low
2) Debris/low air flow through charge air cooler
3) Heavy load on engine + high ambient air temperature
![JOHN DEERE PARTS ADVISOR & HITACHI 2.24.2 [2023.07] - ECUFORCETRUCK EPC](https://www.ecuforcetruck.com/wp-content/uploads/2023/09/1-300x300.png)
