SPN 3510 GHG14 fault is documented in this Detroit DD Series fault code reference PDF, which covers the Low Supply Voltage condition on Detroit engines. The 3-page document lists the fault description, the step-by-step troubleshooting sequence and the connector measurements a technician uses to confirm the repair.
Official document details
| Brand | Detroit |
|---|---|
| Model coverage | Detroit DD Series (EPA 2007-Current) GHG14 engines using the CPC4 |
| System / group | DD Series (EPA 2007-Current) / DTCs |
| Diagnostic code | FMI 4 / SPN 3510 |
| Year / revision | Source dated 2017 |
| Pages | 3 |
| File size | 0.3 MB |
| Format | |
| Language | English |
Document table of contents
- Fault code identification: SPN 3510, FMI 4
- Low supply voltage description
- Accelerator pedal and CPC4 disconnection
- Harness resistance measurements
- Short circuit isolation to ground
- Accelerator pedal replacement
Applicable truck models and engines
This fault code applies to Detroit DD Series (EPA 2007-Current) GHG14 engines using the CPC4, and the DiagTechPro library also files it under the Series 60 (DDEC VI, EPA 2007) DTC set. The diagnostic references the Common Powertrain Controller (CPC4) used on these Detroit powertrains. See the manufacturer’s Detroit official website for current engine specifications and dealer support.
SPN 3510 GHG14 fault troubleshooting overview
With the ignition off, the technician disconnects the Accelerator Pedal (AP) connector and the CPC4 number 1 connector and measures resistance between pins C and B to find a short between wires 8 and 4. The CPC4 number 3 and number 4 connectors are then disconnected and resistance is measured between pins E and F, and from pins C and D to ground, to isolate shorts in the pedal wiring. When all readings clear the thresholds, the manual directs replacing the accelerator pedal.
Who needs this SPN 3510 GHG14 fault manual
Detroit-certified technicians, independent truck repair shops and fleet maintenance teams will use this reference to follow the factory diagnostic sequence with a diesel diagnostic tool before replacing any control module or sensor.
The full PDF is available in the DiagTechPro manuals library; a free account is required to download it, alongside the related Detroit Power Service Literature.
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