CAT 3406E (Prefix 1MM or 2WS) Fault Code: 13 PID: SPN: 174 FMI: 3 Fuel Temperature voltage high
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
![download Hitachi Construction Machinery MPDr Ver 3.7.0.0 [10.2020] Diagnostic Software](https://www.ecuforcetruck.com/wp-content/uploads/2023/05/MPDR-3.7.00-300x300.png)
