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U0293 fault code: what it means

U0293: Lost communication with the hybrid powertrain control module. Hybrid system may shut down.

Network (communication between modules) · Costly if missed

Usual causes, most likely first

  1. hybrid ECU power or fuse fault
  2. CAN wiring fault
  3. weak 12 V battery

U0293 by make

BYD

BYD (SAE code): lost communication with hybrid/EV powertrain control module.

Usual causes: control module power; CAN wiring; 12V battery

GWM

GWM hybrid/EV: lost communication with hybrid/EV powertrain control module.

Usual causes: control module power; CAN wiring; 12V battery

Haval

Haval hybrid: lost communication with hybrid/EV powertrain control module.

Usual causes: control module power; CAN wiring; 12V battery

Hyundai

Lost communication with the hybrid/EV powertrain control unit (VCU/HCU).

Usual causes: HCU/VCU power/earth; CAN wiring; 12V battery low

Kia

Lost communication with the hybrid/EV powertrain control unit (VCU/HCU).

Usual causes: HCU/VCU power/earth; CAN wiring; 12V battery low

LDV

LDV EV: lost communication with hybrid/EV powertrain control module.

Usual causes: control module power; CAN wiring; 12V battery

Lexus

Engine ECU lost communication with the hybrid control ECU on a Lexus hybrid. Engine may stop or not start.

Usual causes: weak 12 V battery or poor earth; CAN wiring or connector fault; HV ECU power or fuse fault

MG

MG EV/PHEV: lost communication with hybrid/EV powertrain control module.

Usual causes: control module power; CAN wiring; 12V battery

Toyota

Engine ECU has lost communication with the hybrid control ECU. Engine may stop or not start and the Check Hybrid System light comes on.

Usual causes: weak 12 V battery or poor earth; CAN wiring or connector fault; HV ECU power or fuse fault

What the repair usually costs

Not sure what U0293 means on your car? Ask Credov.

Before you clear it

Write the code down or photograph the scanner first. A code that comes straight back after clearing points to a fault that is still there. A car whose codes were cleared just before you arrived may be hiding one: the scanner's readiness monitors show "not ready" for a while after codes are cleared.

Researched by Credov from manufacturer and workshop sources. A fault code points to where a fault may be; a workshop confirms it with a diagnosis. Browse all fault codes.