U0293 on Mercedes-Benz: How to Diagnose & Fix
Lost Communication With Hybrid Powertrain Control Module
1 Mercedes-Benz model · 1 documented issue · 1 critical
U0293 on Mercedes-Benz by model: symptoms, diagnosis and fix
NHTSA recall 23V405 covers certain 2022-2023 EQS 450, EQS 580 and AMG EQS vehicles. A development-process deviation could make the electric-drivetrain fault-management software respond improperly to a detected fault at a specific electric-drive plug connector, deactivate the drivetrain and cause loss of propulsion. Multiple warning messages appear when the event occurs.
Common Symptoms
- VIN recall eligibility checked
- drivetrain warnings documented
- loss-of-propulsion event handled as a safety concern
How to Fix
Check the VIN for NHTSA recall 23V405 / Mercedes campaign 2023060009 and have an authorized Mercedes-Benz dealer install the free electric-drivetrain software update if open. If propulsion is lost or drivetrain warnings appear, move to a safe location when possible and arrange qualified diagnosis. Do not buy an electric drive unit, connector or control module from this page; recall eligibility and the remedy are VIN-specific.
Sources for this issue (1)
U0293 code reference
General diagnostic-code context. The code alone does not confirm a cause for your vehicle; use the applicable issue card and its sources.
Frequently asked questions
What does U0293 mean on a Mercedes-Benz?
U0293 stands for "Lost Communication With Hybrid Powertrain Control Module." A controller is no longer receiving the periodic data-bus messages expected from the Hybrid (HEV/EV) Powertrain Control Module, the supervisory controller coordinating engine, motor(s), and high-voltage battery. Set after a calibrated timeout, it indicates lost communication with that module. On Mercedes-Benz it is documented across 1 model: EQS.
What are the most common causes of U0293?
The most common causes of U0293 are: Power/ground or HV-control supply loss to the hybrid powertrain module, Open/shorted bus wiring, Corroded/loose connectors, Failed hybrid powertrain control module, Network/gateway fault. The specific cause varies by vehicle.
How much does it cost to fix U0293 on a Mercedes-Benz?
Repair costs vary widely with the root cause and Mercedes-Benz model; each issue on this page carries its own estimate where one is published.
Looking for U0293 on a different make?
View U0293 across all makes →Content compiled with AI assistance using NHTSA complaints, TSBs, and owner reports. May contain errors. Always verify with your vehicle's service manual.