Fault Code U0298
Code meaning, symptoms, possible causes, part number, and estimated cost.
U0298
Lost Communication With DC/DC Converter Control Module 'A'
Code U0298 indicates a loss of communication with the DC/DC Converter Control Module 'A'. This converter is responsible for converting the high voltage of the hybrid/electric battery to a lower voltage (12V) to power the vehicle's regular systems and charge the 12V battery. Loss of communication can affect 12V battery charging and the operation of many electrical systems in the vehicle.
Part Details
Part Name
DC/DC Converter Control Module
Reference P/N (OEM)
N/A
General part number for this fault code — not necessarily for your specific vehicle
Estimated Cost
₪700 - ₪2800
Engine Location
In the engine compartment or near the hybrid battery
Symptoms
- Check Engine Light on
- 12V battery not charging or draining
- Malfunctions in various electrical systems of the vehicle
- Vehicle will not start
Possible Causes
- 1Faulty DC/DC Converter Control Module
- 2Wiring or loose connection issues in the CAN Bus network to the module
- 3Blown fuse supplying power to the module
- 4Corrosion in connectors
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