This code indicates that the powertrain control module has detected a signal from the DC/AC converter control module that is outside the expected range or operating parameters. It typically appears in hybrid or electric vehicles where a DC-to-AC converter manages power flow between high-voltage systems and AC-driven components. The code means the converter's control circuit is reporting a value that does not match what the PCM expects under current operating conditions.
The converter itself may have internal component degradation or failure causing output signals to fall outside expected range. This is the most common root cause for range/performance codes on converter control circuits.
Corroded, chafed, or loose wiring and connectors between the converter control module and the PCM can cause voltage drops or signal distortion that triggers a range/performance fault.
A weak ground at the converter module or PCM reference ground can shift signal voltages outside the expected range, causing a false range/performance code.
The dedicated converter control module (separate from the main PCM) may have failed internally, producing out-of-range signals. This is less common than wiring or converter hardware faults.
In rare cases, a software calibration mismatch or corrupted update in the PCM or hybrid controller may misinterpret valid converter signals as out of range. This should only be considered after all hardware and wiring checks are complete.
It depends on severity. The vehicle may enter a reduced-power or limp mode. If drivability is normal, short trips may be okay, but the system should be diagnosed promptly to avoid potential damage to high-voltage components.
No. Replacing the PCM is rarely the correct fix for this code. The far more likely causes are the DC/AC converter itself, wiring problems, or ground issues. The PCM should be considered only after all other possibilities are thoroughly ruled out.
Yes. A DC/AC converter control circuit code is associated with vehicles that have high-voltage hybrid or electric drive systems. Conventional gasoline-only vehicles do not typically use this type of converter control architecture.
Possibly. A weak auxiliary 12V battery can cause voltage instability in control circuits, which may produce false range/performance codes. Checking 12V system health is a reasonable early diagnostic step, especially in hybrids where the 12V battery supports module operation.