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Cummins 4612 Engine Intake Manifold Pressure System Monitor - Condition Exists

CUMMINS-4612 Severity Moderate

What this code means

Cummins fault code 4612 (SPN 5321 / FMI 11) refers to: Engine Intake Manifold Pressure System Monitor - Condition Exists. It is logged by the engine control module (ECM) on Cummins-powered vehicles and read over the J1939 diagnostic network.

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Frequently asked questions

01 What does Cummins fault code 4612 mean?

Cummins fault code 4612 (SPN 5321 / FMI 11) indicates engine intake manifold pressure system monitor - condition exists.

02 Is Cummins code 4612 serious?

Cummins 4612 is generally treated as a moderate-severity fault. Have the engine and its wiring inspected, and confirm the reading with a J1939 diagnostic scan before clearing the code.