U0293 on Mercedes-Benz
Lost Communication With Hybrid Powertrain Control Module
U0293 on Mercedes-Benz vehicles indicates lost communication with hybrid powertrain control module. Au7o has documented this code across 1 Mercedes-Benz model — most commonly on EQS. 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.
Common Causes of U0293
- •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
U0293 on Mercedes-Benz by Model
Mercedes-Benz EQS(1 issue)
- Electric Drivetrain Software Fault Causing Sudden Loss of Propulsion (NHTSA 23V405000)2022-2023
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.
Looking for U0293 on a different make?
View U0293 across all makes →Frequently Asked Questions
What does U0293 mean on 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 specifically, this code is documented across 1 model.
What causes U0293 on Mercedes-Benz vehicles?▼
Common causes on Mercedes-Benz: 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. Specific causes vary by model and year — see the per-model sections below.
How much does it cost to fix U0293 on a Mercedes-Benz?▼
Repair costs vary widely depending on the root cause and specific Mercedes-Benz model.
Which Mercedes-Benz models have U0293 documented?▼
Au7o has documented U0293 on 1 Mercedes-Benz model: EQS.