Cummins M11 sensor supply — Fault Code 352 (+5 VDC, S232, FMI 4)

This Cummins M11 sensor supply reference covers Fault Code 352 (PID S232, SPN 620, FMI 4, SRT 00-607) on the CELECT Plus engine, where all sensors share one +5 VDC source in the ECM. It is a one-page yellow-lamp summary.

Official document details

Document table of contents

• Circuit description
• Component location
• Shop talk diagnostic notes
• Troubleshooting step and ECM decision

Cummins M11 sensor supply checks

All of the sensors are powered by the same +5 VDC source in the ECM, and that supply circuit runs through the sensor harness. Shop talk tells the technician that if the problem is in the +5 VDC supply, the pressure sensors should be unplugged one at a time until the fault goes inactive, then the suspect circuit or sensor is investigated. Importantly, the document states that if Fault Code 352 is present without multiple sensor fault codes, the ECM has failed. The single troubleshooting step reads the active codes and checks whether related sensor codes 123, 141, 145, 154, 213, 222, and 422 are also active to decide between a multiple-fault path and ECM replacement.

Applicable truck models

Coverage is the Cummins M11 CELECT Plus (1995-98) shared sensor supply. Confirm ECM replacement criteria on the official Cummins website.

Who needs this M11 sensor supply manual

Technicians facing several sensor codes at once, or a lone Code 352, on M11 CELECT Plus trucks use this to decide between a supply fault and a failed ECM.

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Applies to these truck models

This is the manufacturer document shared across 2 model families. It applies to:

• Cummins DTCs
• Cummins M11 CELECT Plus (1995-98)

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