U0292Lost Communication With Drive Motor Control Module B
- Generic OBD-II code · Network
- Turns on the check-engine light
- Matters for the ITP
- Can trigger limp mode
- Needs a drive cycle to confirm a fix
- How the car detects it
- Electric and hybrid vehicles with a motor on each axle usually give the inverter of the second motor the address drive motor control module B. U0292 means the coordinating controller no longer receives its messages. Audi documents this for the 2019 e-tron quattro: bulletin 2055804 finds U029200 in the electric drive control unit J841 or the engine control unit J623, while the car refuses to become ready, limits the selectable positions and shows various warnings; the low-voltage harness of the rear motor chafes because of its routing, sometimes blowing fuses SJ7 or SD5. Mitsubishi's 2023 Outlander PHEV lists U0292-00 as lost communication with power drive unit B, the rear unit. Expect warnings, loss of drive on that axle or no ready state.
- What you may notice
- Vehicle does not become ready to drive
- Drive system warnings, restricted gear selection
- Only one axle driven, reduced power
- Likely causes
- LikelyLow-voltage harness of the second drive unit chafed
- PossibleBlown supply fuse of module B
- PossibleConnector at the inverter of module B loose or corroded
- RareInverter or control module B internally failed
- Inspection (ITP)
- Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
- Repair
- Hard · Usually a job for a workshop.Typical cost: €100 – €4,000
- Related codes
Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.