CAT 3406E (Prefix 5DS or 1LW) Fault Code: 42 PID: 22 SPN: FMI: 13 Engine Speed Signal Calibration Not Performed
The Engine Control Module (ECM) detects the following conditions:
•A timing calibration has never been performed on a new ECM or the timing is off by more than three degrees.
Probable Causes:
1) Speed/timing sensor not calibrated properly (Need CAT software to do this)
2) Speed/timing sensor failure
3) Speed/timing sensor harness failure
![DOOSAN DMS-5 3.1.3 [2023.11] diagnostic software](https://www.ecuforcetruck.com/wp-content/uploads/2023/11/1-300x300.png)
