U0411
Invalid Data Received From Drive Motor Control Module A
Communication network (hybrid/EV drive motor)
Generic OBD-II
High
What it means
U0411 sets when a control module reads data from the drive motor control module — the inverter/controller for a hybrid or EV traction motor — that is missing or implausible. Because this module runs electric propulsion, bad data can force the vehicle into limp mode or prevent it from moving.
High
Can I keep driving? Risky — on a hybrid or EV this can limit or disable electric propulsion, so the vehicle may enter limp mode or not move; have it checked before driving.
Common symptoms
What you'll notice
- Check-engine or hybrid/EV system warning light on
- Reduced propulsion, limp mode, or the vehicle won't move
- "Service powertrain" or similar warning message
- Hesitation or loss of drive under load
- Related communication codes stored in other modules
Common causes
Most likely first
- Faulty drive motor control (inverter) module or its power/ground supplyLikely
- Corroded, loose, or damaged connectors and data-bus (CAN) wiringCommon
- Low or unstable 12V battery and charging-system voltageCommon
- Software incompatibility after a module was replaced or updatedLess often
- An underlying drive-motor or inverter fault reported by the moduleLess often
How to diagnose & fix
Work through it in order
- Scan every module and record all stored codes and freeze-frame data before clearing.
- Check 12V battery and charging voltage — weak or noisy voltage often triggers bus data errors.
- Inspect the connectors and low-voltage wiring to the drive motor control module and along the data bus.
- If a module was recently replaced or flashed, confirm the software is correct and compatible.
- Follow the manufacturer's pinpoint tests for the drive motor module; high-voltage work should be left to qualified technicians.
FAQ
Quick answers
Is it safe to drive with U0411?+
Not really — this can limit or cut electric propulsion and leave you in limp mode or stranded. Have it checked before driving.
Can I just clear U0411?+
You can, but if the drive motor module or its data link is still faulty the code returns and propulsion may be limited again. High-voltage systems should be diagnosed by a qualified technician.
Related codes
Often seen with U0411
Read & clear U0411 yourself
Scan your car, confirm the code, and clear it once it's fixed — with OBD DashX on your phone.
✓ Verified name — SAE J2012 / ISO 15031-6Guidance reviewed by OBD DashX