Body, generic

B012E DC/AC Converter A High Voltage Power Outlet Control Module "C"

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

B012E concerns outlet control module C. GM's name for the part is accessory AC and DC power control module: in program N222385490, 2023 Silverado and Sierra 1500 built from September 2022 without a working inverter, because of the chip shortage, received this module, a fuse and BCM reprogramming, with separate inverters for 110 V (RPO KI4) and 230 V (KI5). Ford's patent US11043801B2 describes the control side: relays switching each socket, run timers and power limits, all managed by the DCACA controller. Whether module C is a third unit or another function is not published, and no manufacturer documents B012E. Typical causes are supply, ground, network faults or missing configuration after replacement.

Likely causes

Module C or BCM not configured or programmed after installation or replacement
Fuse, supply or ground of module C faulty
Module C internally defective

Symptoms

  • Power outlets in cab and bed inoperative
  • Outlet functions missing from the display menu
  • Module handles 120/240 V AC from a high-voltage source; work only with the system de-energised

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€100–2,500
Time0.5–3 h

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

Parts involved

hv outlet module cbody control module

Related codes

B012CB012DB0127

References: static.nhtsa.gov, patents.google.com.