FMI 7 CAT Fault Code

High Aftercooler Temperature Derate

Cause :

The battery supplies electricity to the TCM even when the ignition switch is off. This power allows the TCM to store data such as DTC history and freeze frame data.Engine started, engine running, and the PCM detected a high voltage present at the PCM for 3 minutes after the engine started. The Starter Relay Control Circuit High Voltage test monitors the voltage signal that is sent from the ignition switch.

FMI-892
FMI-48
FMI-2076
FMI-1123
FMI-55
FMI-423
FMI-2160
FMI-517
FMI-867
FMI-1121

Don't forget ! When a fault code pops up, CAT's Uptime Center is automatically notified via an cellular link, and it alerts the truck's owner by prearranged methods, usually email or phone calls.

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