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CAT 3406E (Prefix 1MM or 2WS) Fault Code: 62 PID: SPN: 111 FMI: 11 Very Low Coolant Level
The Engine Control Module (ECM) detects the following conditions:
•The coolant level is very low for more than 30 seconds.
•The “Coolant Level Sensor” parameter is programmed to “Yes”.
Probable Causes:
1) Coolant level
2) Coolant level sensor/harness