Cummins M11 code 352 is the Cummins troubleshooting document for the Sensor Supply Circuit fault (PID S232, SPN 620, FMI 4, SRT 00-607). All of the sensors are powered by the same +5 VDC source in the ECM, and the idle validation switch and cab switches share the +5 VDC switch common supply covered by this procedure. It sets a yellow warning lamp and lists the exact conditions, causes, and step-by-step checks a technician follows.
Official document details
| Brand | Cummins |
|---|---|
| Model coverage | Cummins M11 CELECT electronic engines built 1990 to 1994 |
| System / Group | M11 CELECT (1990-94) |
| Fault identifiers | PID S232, SPN 620, FMI 4, SRT 00-607 |
| Warning lamp | Yellow |
| Pages | 2 |
| Format | |
| Language | English |
Document table of contents
- Circuit description
- Component location
- Shop Talk
- Step-by-step troubleshooting steps
- Fault code clearing and verification
Trucks covered by Cummins M11 code 352
This procedure applies to Cummins M11 CELECT electronic engines built 1990 to 1994. The procedure carries the Cummins fault identifiers PID S232, SPN 620, FMI 4, SRT 00-607 for reference and repair-time tracking. It is set by a fault in the shared +5 VDC sensor supply, or an internal ECM failure when no other sensor faults are present, and typical effects include loss of the common sensor supply, which can set multiple sensor fault codes at once. For engine specifications and dealer support, see the official Cummins website.
Who needs this Cummins M11 code 352 manual
Heavy-truck technicians, fleet maintenance teams, and workshop owners diagnosing this fault use it to confirm the code before replacing parts. During diagnosis pressure sensors are unplugged one at a time until the fault goes inactive to isolate the offending circuit, and code 352 alone points to a failed ECM. The step-by-step tree starts by reading active and inactive codes with the diagnostic tool, then inspects the harness and connector pins for bent, corroded, pushed-back, or expanded pins, flushing them with electronic contact cleaner Part Number 3824510 before any component is condemned. Test leads run around the bulkhead are used to isolate a faulty OEM harness, and the code is rechecked and cleared once the repair passes.
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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 (1990-94)
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