Diagnostic article Generic OBD-II
P217E: Group H low supply points to the energized high-side circuit
Learn how GM P217E evaluates injector output 8 and why a ground-directed electrical result is separate from cylinder contribution.
Read before applying this article
Documented application
2025 GM 06B documented monitor only. Vehicle, engine and controller calibration applicability must be established separately; no model fitment is inferred from the file.
The code alone does not identify a failed part or establish that a vehicle is safe to drive. Confirm the vehicle, reporting module and applicable service procedure.
P217E identifies a low supply-circuit condition for injector group H. The cited GM monitor calls the relevant channel injector 8 high-side driver and assesses its voltage feedback while it is powered on. The result concerns the electrical path, not a direct measurement of how much that cylinder contributes to engine output.
Establish the on-state monitoring opportunity
A low signal while the driver is intentionally off is not the documented failure comparison. The controller uses calibrated voltage thresholds for the energized output to classify a connection toward ground. The table does not provide a universal external probe voltage or locate the physical short.
Battery voltage must be at least 11 V and the specified P062B failure states absent. Ten failed observations within twenty samples at a 100-millisecond task rate confirm the condition, with one-trip reporting.
Keep the correct output and controller state together
Preserve the command and feedback for the output named injector 8, together with supply and the wider injector-control fault status. A satisfactory neighboring channel cannot verify this path, and an inhibited assessment should not be counted as a successful pass.
Group H is the generic label; its physical cylinder and connector mapping must come from the actual system information. The monitor cannot decide whether the defect is in wiring, the connected load or the controller, or justify a fuel-pressure repair. Those conclusions require the matching diagnostic procedure.
Source and applicability
2025 GM 06B documented monitor only. Vehicle, engine and controller calibration applicability must be established separately; no model fitment is inferred from the file. GM PDF, physical page 446.
Article source documents
Source checks describe how the text was prepared; they do not certify a diagnosis or confirm compatibility with every vehicle using this code.
Original code reference
Dictionary definition
Fuel Injector Group H Supply Voltage Circuit Low
This definition retains its original catalog scope. The article above is limited to its explicitly documented application.
Reference scope
Generic OBD-II definition.
A manufacturer label does not establish the model, year, engine or module to which a diagnosis applies. Read the safety and diagnostic limits.
Definition source
- DTC Database: pinned community code definitions
Source checked · MIT