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CAT 3406E (Prefix 5DS or 1LW) Fault Code: 13 PID: 174 SPN: FMI: 4 Fuel Temperature voltage low

The Engine Control Module (ECM) detects the following conditions:

•The signal voltage from the fuel temperature sensor is less than 0.2 VDC for more than eight seconds.

Probable Causes:

1) ECM Connection/Harness
2) If code 232-3 or 232-4 (5 Volt Supply voltage codes) are active, troubleshoot those instead
3) Temperature sensor failure
4) Temperature sensor harness
5) ECM Failure