U0293 code meaning
Lost Communication With Hybrid/EV Powertrain Control Module
Network system Generic code U02xx codes Check engine light
What U0293 means
The hybrid or EV powertrain control module coordinates engine, motors and high-voltage battery, so many controllers depend on its frames. Ford's 2019 hybrid OBD summary has the battery module set U0293 when HPCM messages are missing for 1 or 5 s, and the brake module set it because wheel torque data are lost; the 2014 list marks it with MIL. GM uses it in several units: the 2016 Volt VICM reacts after 500 ms as Type B, the 2018 L8B engine module after 0.5 s as Type A. Jeep cured it on the 2021 Wrangler 4xe with a TCM flash, Toyota found U029387 on the 2019–2020 RAV4 Hybrid in frost because the IGCT relay failed to power the HV ECU. Ford SSMs name connector grease and gateway software. Often the car will not start or drive.
U0293 at a glance
- Check engine lightYes, usually on
- Emissions testCan fail
- Limp modePossible
- Repair difficultyHard
- Typical labor0.3 to 6 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0293
- Check engine lamp or hybrid system warning
- Vehicle does not become ready or will not start
- Stop safely now message, loss of power
Common causes of U0293
- Most likelySupply relay or fuse of the hybrid powertrain module (e.g. IGCT relay in frost)
- Most likelySoftware in the hybrid module, gateway or receiving module
- PossibleConnector fault, including grease applied to module connectors
- PossibleCAN wiring to the hybrid module damaged
- Less likelyHybrid/EV powertrain control module internally failed
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Hev ev powertrain moduleVehicle bus wiring
What each part of U0293 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 93 | The exact fault in that area. |
What to do next
- Note U0293 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U0293
What does U0293 mean?
U0293 means "Lost Communication With Hybrid/EV Powertrain Control Module". The hybrid or EV powertrain control module coordinates engine, motors and high-voltage battery, so many controllers depend on its frames. It is a generic code, so it means the same on every make.
Is it safe to drive with U0293?
Drive gently and only to a workshop. With U0293 the car can go into limp mode (reduced power) to protect itself.
Will U0293 fail an emissions test?
Yes, it can. U0293 is emissions-related, so most inspection programs fail a car while it is stored or while the check engine light is on.
How hard is U0293 to fix?
Difficulty: hard. A typical repair takes 0.3 to 6 hours of work. This is a job for a workshop.
Will U0293 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.