U0589 code meaning
Invalid Data Received From DC/AC Converter Control Module A
What U0589 means
A DC/AC converter turns the vehicle's DC supply into household-style AC for power outlets in the cabin or truck bed. Ford calls the 7.2 kW Pro Power Onboard unit of the 2021 F-150 PowerBoost direct current/alternating converter module A (DCACA) and fixed a service message there by reprogramming the PCM and the DCACA. GM's PIT6527 for the 2026 Colorado and Canyon shows that the body control module watches the converter of the 120 V outlet at the rear of the centre console; there U0288, lost communication, was set falsely on trucks without that outlet. U0589 is the case where the converter does talk but its data, for example output status, load or temperature, are rejected as implausible. A maker's text for U0589 itself is not available. Outlets may switch off.
U0589 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.3 to 2.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0589
- Power outlets dead or switching off under load
- Message that the onboard power system needs service
Common causes of U0589
- Most likelyConverter or receiving module software out of date (Ford DCACA reprogramming)
- PossibleBody control module configured for an outlet option the vehicle does or does not have
- PossibleConverter internally faulty or overheated
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Dc ac converter module a
What each part of U0589 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 89 | The exact fault in that area. |
What to do next
- Note U0589 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 U0589
What does U0589 mean?
U0589 means "Invalid Data Received From DC/AC Converter Control Module A". A DC/AC converter turns the vehicle's DC supply into household-style AC for power outlets in the cabin or truck bed. It is a generic code, so it means the same on every make.
Is it safe to drive with U0589?
U0589 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0589 fail an emissions test?
U0589 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 U0589 to fix?
Difficulty: medium. A typical repair takes 0.3 to 2.5 hours of work. This is a job for a workshop.
Will U0589 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.