U0293
Lost Communication With Hybrid/EV Powertrain Control Module
U0293 is an OBD-II diagnostic trouble code meaning: Lost Communication With Hybrid/EV Powertrain Control Module. Common causes: open or short circuit in the can bus, malfunction of the hybrid transmission control module. Estimated repair cost: $56–278.
Symptoms
- Check Engine light comes on
- The car goes into emergency mode
- Reduced engine power
- Disabling hybrid features
- Problems with charging a high-voltage battery
Causes
- Open or short circuit in the CAN bus
- Malfunction of the hybrid transmission control module
- Module power problems
- Corroded or damaged connectors
- Software error in the control unit
How to Fix
- Check the integrity of the CAN bus and wiring
- Diagnose control module power supply
- Inspect and clean all connectors
- Scan all modules for errors
- Update control unit software
- Repair only from an authorized dealer
Related codes
Error U0293 by Vehicle Brand
FAQ
What does the U0293 code mean?
U0293 is an OBD-II diagnostic trouble code that indicates: Lost Communication With Hybrid/EV Powertrain Control Module
What causes a U0293 error code?
The most common causes of U0293 include: Open or short circuit in the CAN bus; Malfunction of the hybrid transmission control module; Module power problems; Corroded or damaged connectors.
How do I fix a U0293 diagnostic trouble code?
To fix U0293: Check the integrity of the CAN bus and wiring. Diagnose control module power supply. Inspect and clean all connectors. For a complete diagnosis, use an OBD-II scanner.
Is it safe to drive with U0293?
Do not drive — repair immediately
How much does it cost to fix U0293?
The estimated repair cost for U0293 is $56–278. Actual cost depends on your vehicle, location, and labor rates.
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