Fault Code U0284
Code meaning, symptoms, possible causes, part number, and estimated cost.
U0284
Lost Communication with Hybrid Powertrain Control Module
This code indicates a critical loss of communication between the main control unit and the Hybrid Powertrain Control Module. This fault will prevent the entire powertrain system or parts of it from operating, causing the vehicle not to start or drive properly.
Part Details
Part Name
Hybrid Powertrain Control Module
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪3000 - ₪10000
Engine Location
Engine bay/Near high-voltage battery
Symptoms
- Vehicle not starting
- Loss of engine power
- Hybrid warning light illuminated
- Vehicle enters 'limp home mode'
Possible Causes
- 1Internal failure of the Hybrid Powertrain Control Module
- 2Faulty wiring or short circuit in the communication system (CAN)
- 3Loose or corroded connector
- 4Hybrid battery failure
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