quantity control valve error is the Detroit DD Series diagnostic trouble code for quantity control valve (high side) error, and this page documents its official quantity control valve circuit troubleshooting sheet. The three-page sheet notes that the code can be set by an MCM pin 1 circuit shorted to ground or an internal short of the quantity control valve, lists an always-enabled monitor and a 25% derate with MIL and CEL.
quantity control valve error document details
| Brand | Detroit |
| Model coverage | DD Series — DD13, DD15, DD16 |
| System / group | DD Series (EPA 2007-Current) / DTCs |
| SPN | 164 |
| FMI | 0 |
| Fault | Quantity Control Valve (High Side) Error |
| Emissions / revision | All years — Copyright 2017 |
| Pages | 3 |
| File size | 0.3 MB |
| Format | |
| Language | English |
Document table of contents
- Description, causes and engine derate
- MCM pin 1 short-to-ground check
- Quantity control valve internal short test
- Valve replacement decision
- Clear code and verify at idle
Troubleshooting steps summarised
The procedure checks the valve control circuit and its connection to the Motor Control Module (MCM), inspecting the harness for shorts to ground on the MCM pin 1 circuit and testing the valve for an internal short. Where the wiring is sound, the valve is replaced, and the fault is cleared and verified at engine idle.
Applicable truck models covered
It applies across all model years of the Detroit DD Series (DD13, DD15 and DD16) that use the MCM-controlled high-side quantity control valve. For engine specifications and warranty coverage, refer to the official Demand Detroit service resources. These troubleshooting steps are cross-checked with the Detroit Diesel Diagnostic Link (DDDL) and the official Demand Detroit service resources.
Who needs this quantity control valve error guide
Technicians diagnosing a high-side valve driver fault, a pin 1 short to ground, or a shorted valve winding use this sheet before replacing the valve or the controller.
The full PDF is available in the DiagTechPro manuals library; a free account is required to download the complete step-by-step document.
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