DTC U0293: Lost Communication with HV ECU [08/2013 - ]: Description
WARNING: This page is about a different car, the 2014 Lexus ES 300h. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is stored when the power management control ECU detects a CAN communication error inside the power management control ECU (power control section - HV control section).
HINT:
When the cable is disconnected and reconnected to the negative (-) auxiliary battery terminal, the power source mode returns to the state it was in before the cable was disconnected.
| DTC Code | DTC Detection Condition | Trouble Area | DTC Output Confirmation Operation |
|---|---|---|---|
| U0293 | CAN communication error inside the power management control ECU (power control section - HV control section). (1-trip detection logic*) |
|
Turn the power switch on (IG) and wait 10 seconds or more. |
- *: Only detected while a malfunction is present.
VEHICLE CONDITION AND FAIL-SAFE FUNCTION WHEN MALFUNCTION DETECTED
| Vehicle Condition when Malfunction Detected | Fail-safe Function when Malfunction Detected |
|---|---|
| There is no effect on vehicle behavior. | - |