U0598 code meaning
Invalid Data Received From AC/DC Converter Control Module B
What U0598 means
A second AC/DC converter exists where makers raise AC charging power by fitting two charger units; the F-150 Lightning, for instance, can be ordered with two 40-amp charger units that together reach 19.2 kW. Patents show how the pair is run: Porsche's US10029578B2 has one charger lead and the other follow via a communication line only, and Hyundai's US10270273B2 uses a master controller with slave controllers per power module. U0598 means the second unit keeps reporting but its data are rejected, so the vehicle typically falls back to the first charger and charges more slowly. No manufacturer documents U0598 publicly. The lost-communication counterpart in current code lists is U0297.
U0598 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyHard
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0598
- AC charging only at roughly half power
- Charging system warning
Common causes of U0598
- PossibleSecond charger unit faulty or overheated
- PossibleSoftware of the charger pair not matched after a replacement
- Less likelyCommunication line between the chargers damaged
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Ac dc converter module b
What each part of U0598 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 98 | The exact fault in that area. |
What to do next
- Note U0598 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 U0598
What does U0598 mean?
U0598 means "Invalid Data Received From AC/DC Converter Control Module B". A second AC/DC converter exists where makers raise AC charging power by fitting two charger units; the F-150 Lightning, for instance, can be ordered with two 40-amp charger units that together reach 19.2 kW. It is a generic code, so it means the same on every make.
Is it safe to drive with U0598?
U0598 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0598 fail an emissions test?
U0598 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U0598 to fix?
Difficulty: hard. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will U0598 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.