Diagnostic article Generic OBD-II
P2093: A bank 2 intake cam driver that remains high when commanded on
Understand P2093’s on-state short-to-power logic and its distinction from camshaft position performance.
Read before applying this article
Documented application
2025 GM 25OBDG07A Part 2 monitor tables only; model, engine and transmission applicability are not established by the unresolved application-matrix filename join.
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.
P2093 concerns the bank 2 intake camshaft actuator's electrical driver in this GM calibration. The monitor is looking for a high output voltage during the driver's on state, a response it classifies as a short-to-power fault.
Why command state is essential
A low-side driver is expected to change the circuit's electrical condition when activated. The diagnostic therefore judges the voltage together with the command, not as an isolated “high voltage” reading. The source lists a one-second failure period for this assessment.
The enable conditions span the page boundary: ignition must be on, the ECU must be in its drive state and the documented voltage and basic eligibility conditions must be satisfied. Referenced inhibition rules also apply. Observing a code after an inhibited interval does not show that the monitor ran continuously during that interval.
Keep an electrical fault separate from a timing error
This code does not directly demonstrate that the camshaft moved too far, too slowly or in the wrong direction. It addresses the actuator control circuit's response. Cam-angle behavior may be useful additional evidence, but it is not the criterion shown in this row.
Retain the actuator identity, commanded state and electrical diagnostic category. Then use the actual engine's circuit information to determine where an unwanted power connection could arise. The source does not isolate the wiring, solenoid or ECU as the failed part, and its bank/actuator designation should not be converted into a guessed physical location.
Source and scope
2025 GM 25OBDG07A Part 2 monitor tables only; model, engine and transmission applicability are not established by the unresolved application-matrix filename join. These are documented monitor criteria, not a universal repair procedure. GM PDF, physical page 743 · GM PDF, physical page 744.
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
A Camshaft Position Actuator Control Circuit High Bank 2
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