OBD-II trouble code
U0411: Invalid Data Received From Drive Motor Control Module
A module is receiving messages from the drive motor control module, but the data inside them is implausible or out of range. Found on hybrids and EVs, where this module runs the traction motor. The connection is alive — the content is wrong. High-voltage system: professional diagnosis.
Quick facts
- System
- Network
- Category
- Network Communication
- Severity
- Medium severity
- Drivable
- Usually safe to drive short-term
- Repair cost range
- $100 – $1,500
- DIY difficulty
- Shop recommended
What does U0411 mean?
On hybrid and electric vehicles, the drive motor control module (often the motor inverter or motor control unit) commands the high-voltage traction motor — converting DC from the battery into the precisely controlled AC that turns the wheels, and managing regenerative braking on the way back. It reports motor speed, torque, temperature, and inverter status to the hybrid or vehicle control unit over the network. U0411 sets when a receiving module is still hearing from the drive motor control module, but the data in its messages is invalid: a value is out of range, implausible, or contradicts what other modules see. The link is alive; the content can't be trusted — which is the key difference from a lost-communication code like U0110, where the module has gone completely silent.
Because the fault is bad data rather than a dead connection, the causes lean toward whatever makes the module report wrong information. A failing motor input — a resolver or position sensor, a motor temperature sensor, or an inverter current sensor — can push the module into broadcasting values other modules reject. Low 12-volt system voltage is a classic trigger, since the module's control logic gets unreliable as its supply sags, even though the high-voltage side is separate. The module's software can be at fault if it's outdated, corrupted, or was never programmed after a replacement, and electrical noise or damaged bus wiring can corrupt otherwise-good messages. Because this is a high-voltage system, diagnosis and any repair belong with a qualified hybrid/EV technician.
Symptoms follow which data is invalid. The vehicle may reduce power, limit or disable regenerative braking, refuse to enter EV mode, or drop into a limp-home mode; a hybrid may lean more on its gasoline engine to compensate. Warning lights for the hybrid system or a master warning are common. The vehicle is often still driveable in a reduced state, but U0411 is frequently a secondary code — read the full list, because a companion motor, inverter, or battery code often names the real root cause.
Common causes
- Failing motor resolver/position sensor or temperature sensor feeding the module bad data
- Inverter current sensor fault producing implausible values
- Low 12-volt system voltage or a weak auxiliary battery
- Outdated, corrupted, or mismatched drive motor control module software
- Module or inverter replaced without proper programming
- Electrical noise or damaged bus wiring corrupting messages in transit
- Drive motor control module or inverter internal fault
- Overheating of the motor/inverter cooling circuit skewing reported values
Symptoms
- Reduced power or limp-home mode
- Regenerative braking limited or disabled
- Vehicle refusing to enter or hold EV mode (hybrids)
- Hybrid system or master warning light illuminated
- Hybrid leaning more heavily on its gasoline engine
- Companion motor, inverter, or battery codes stored alongside U0411
- Vehicle often still driveable in a reduced state
Diagnostic steps
- 1.Read ALL stored codes first — U0411 is often secondary to a motor, inverter, or high-voltage battery code that names the bad signal.
- 2.Check the 12-volt battery and charging system; low auxiliary voltage is a common cause of implausible module data even on high-voltage vehicles.
- 3.Use a capable scan tool to review motor speed, torque, temperature, and inverter data for out-of-range values.
- 4.Inspect the module's low-voltage connectors and bus wiring for corrosion or damage (leave high-voltage service to qualified technicians).
- 5.Verify the motor control module and inverter have the correct, current calibration, especially after any replacement.
- 6.Address any companion codes before condemning the module; the underlying fault often clears U0411.
Repair cost
$100 – $1,500
Cost varies with the fault and is wider than most invalid-data codes because high-voltage hardware is expensive. A software reflash runs $100-$300, and correcting a weak 12-volt battery or charging fault $150-$600. A motor position/temperature or inverter current sensor typically runs $250-$700 with diagnosis. Drive motor control module or inverter replacement with programming is the high end — often $900-$1,500 or more on some platforms — and should only follow thorough diagnosis at a qualified hybrid/EV shop, since U0411 is frequently a secondary code.
Estimate your repair
Run the numbers for your vehicle
Open the Repair Cost Estimator with module communication / can bus diagnosis preselected. Adjust labor rate and vehicle category to fit your situation.
DIY vs shop
Leave this one to a qualified shop. It typically involves emissions-critical components, refrigerant handling, or other work that requires manufacturer-grade tooling, training, or certification. DIY attempts often produce a more expensive problem than the original code.