Network, generic

U0589 Invalid Data Received From DC/AC Converter Control Module A

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

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.

Likely causes

Converter or receiving module software out of date (Ford DCACA reprogramming)
Body control module configured for an outlet option the vehicle does or does not have
Converter internally faulty or overheated

Symptoms

  • Power outlets dead or switching off under load
  • Message that the onboard power system needs service

Repair estimate

DifficultyMediumWorkshop job
Parts and labour€80–1,500
Time0.3–2.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

dc ac converter module a

Related codes

U0288U058AP0364

References: static.nhtsa.gov, static.nhtsa.gov.