This Detroit SPN 3464 EPA07 troubleshooting sheet documents fault code SPN 3464/FMI 14, Intake Air Throttle Control Electrical Fault, on Detroit DD Series engines. It verifies the fault after clearing codes and disconnecting the MCM 120-pin connector with a diesel diagnostic tool. The sheet is a concise electrical check for the intake throttle valve.
Official document details
| Brand | Detroit |
|---|---|
| Model coverage | DD Series diesel engines (DD13, DD15, DD16), EPA 2007 and newer |
| System / Group | DD Series (EPA 2007-Current) / DTCs |
| Fault code | SPN 3464 / FMI 14 |
| Emission tier | EPA07 |
| Publication no. | Detroit Power Service Literature (via TruckFaultCodes.com, © 2017) |
| Pages | 2 |
| File size | 0.2 MB |
| Format | |
| Language | English |
Detroit SPN 3464 EPA07 table of contents
- Fault code identification: SPN 3464, FMI 14
- Steps 1-2: clear all codes and turn the ignition off
- Steps 3-4: disconnect the MCM 120-pin connector, key on
- Step 5: confirm whether SPN 3464/FMI 14 is still active
- Escalation to the Detroit Customer Support Center
- Intake air throttle control coverage
Applicable truck models
This EPA07-tier procedure applies to Detroit DD Series diesel engines and targets the intake air throttle control circuit through the MCM 120-pin connector. An active code after clearing points to a control-side fault. See Detroit’s official service literature portal for the authoritative Detroit repair procedures.
Who needs this Detroit SPN 3464 EPA07 manual
Technicians diagnosing an intake air throttle electrical fault on an EPA07 engine will use this sheet to confirm the code before further wiring work. It suits workshop owners verifying whether Detroit escalation is required.
The full PDF is available in the DiagTechPro manuals library — a free account is required to download. It is offered for reference alongside your Detroit diesel diagnostic tool. DiagTechPro catalogues Detroit fault-code documents so technicians can locate the exact SPN and FMI they are chasing without paging through a full engine service manual. Each entry lists the page count, file size and emission tier up front, and links to the closely related codes shown below so a diagnosis can move quickly from one fault to the next.
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