CAT 3406E (Prefix 5DS or 1LW) Fault Code: 64 PID: 105 SPN: FMI: 0 High Intake Manifold Air Temperature Warning

Posted by PerDiezel Solutions on January 13, 2026

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

CAT 3406E (Prefix 5DS or 1LW) Fault Code: 62 PID: 111 SPN: FMI: 11 Very Low Coolant Level

CAT 3406E (Prefix 5DS or 1LW) Fault Code: 62 PID: 111 SPN: FMI: 1 Low Coolant Level Warning

CAT 3406E (Prefix 5DS or 1LW) Fault Code: 61 PID: 110 SPN: FMI: 11 Very High Coolant Temperature

CAT 3406E (Prefix 5DS or 1LW) Fault Code: 61 PID: 110 SPN: FMI: 0 High Coolant Temperature Warning

CAT 3406E (Prefix 5DS or 1LW) Fault Code: 59 PID: 252 SPN: FMI: 11 Engine Software Incorrect

CAT 3406E (Prefix 5DS or 1LW) Fault Code: 58 PID: 249 SPN: FMI: 11 J1922 Data Link Fault

WARNING!