OBD-II · Network and communication (U)
U0293
Lost communication with hybrid/EV powertrain control module
What it means
Another module has stopped receiving messages from the hybrid or electric-drive control unit.
Symptoms
- Hybrid/EV system warning
- Car will not go into READY or drive mode
- Limp mode or loss of drive
Likely causes, most likely first
| No. | Cause |
|---|---|
| 01 | weak or flat 12V battery |
| 02 | blown fuse or relay for the hybrid control module |
| 03 | corroded connector or water ingress |
| 04 | CAN wiring fault |
| 05 | failed hybrid/EV control module |
What to check, step by step
- 01Test and charge the 12V battery first
- 02Check fuses and relays for the hybrid control module
- 03Check whether the module answers a scan tool
- 04Inspect connectors and test power, ground and CAN at the module