CAT 3406E (Prefix 1MM or 2WS) Fault Code: 73 PID: SPN: 4 FMI: 11 Cylinder #4 Injector current fault

The Engine Control Module (ECM) detects one of the following items after attempting to operate the injector:

A low current condition (open circuit) exists in the wiring for the cylinder injector solenoid.
A high current condition (short circuit) exists in the injector solenoid.

Probable Causes:

1) ECM Connection/Harness
2) Cylinder injector failure
3) Injector solenoid failure
4) Harness from ECM to valve cover connector
5) ECM failure
6) Injector harness under valve cover

CAT 3406E (Prefix 1MM or 2WS) Fault Code: 73 PID: SPN: 3 FMI: 11 Rectángulo: esquinas redondeadas 1

CAT 3406E (Prefix 1MM or 2WS) Fault Code: 72 PID: SPN: 2 FMI: 11 Cylinder #2 Injector current fault

CAT 3406E (Prefix 1MM or 2WS) Fault Code: 72 PID: SPN: 1 FMI: 11 Cylinder #1 Injector current fault

CAT 3406E (Prefix 1MM or 2WS) Fault Code: 71 PID: SPN: 43 FMI: 2 Key Switch Fault

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