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
CAT 3406E (Prefix 1MM or 2WS) Fault Code: 42 PID: SPN: 22 FMI: 11 Primary to Secondary Engine Speed Signal Calibration
CAT 3406E (Prefix 1MM or 2WS) Fault Code: 41 PID: SPN: 84 FMI: 0 Vehicle Overspeed Warning
CAT 3406E (Prefix 1MM or 2WS) Fault Code: 38 PID: SPN: 105 FMI: 4 Intake Manifold Air Temperature voltage low
CAT 3406E (Prefix 1MM or 2WS) Fault Code: 38 PID: SPN: 105 FMI: 3 Intake Manifold Air Temperature voltage high
CAT 3406E (Prefix 1MM or 2WS) Fault Code: 36 PID: SPN: 84 FMI: 10 Vehicle Speed signal rate of change
CAT 3406E (Prefix 1MM or 2WS) Fault Code: 36 PID: SPN: 84 FMI: 8 Vehicle Speed signal out of range
