B012E

Code

Generic B — Body

DC/AC Converter A High Voltage Power Outlet Control Module “C”

Brand: Generic

Type: B — Body

Views: UK: 21 EN: 39 RU: 30

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Page language: EN

Causes

Blown fuse or tripped circuit breaker for DC/AC converter outlet circuit
Open or shorted wiring in the outlet control harness
Corroded, loose, or damaged connector at the converter/control module or outlet
Faulty DC/AC converter control module (internal electronics)
Failed relay or contactor in the HV outlet circuit
Low 12V battery or poor ground affecting control electronics

Symptoms

High-voltage AC power outlet(s) will not enable or supply AC power
Instrument cluster or infotainment may show a message or indicator for the outlet/AC inverter
DTC stored and possibly other related electrical codes
Intermittent operation or loss of outlet functionality
Possible reduced vehicle functions if related to main inverter control

What to check

OBD-II scan: read DTC(s), freeze frame data and pending codes; clear and see if code returns
Visual inspection of wiring, connectors and outlet for heat damage, corrosion or pin loss
Check related fuses and relays for continuity and correct installation
Verify 12V supply and ground at the converter control module connector with key ON and engine OFF
Inspect for water intrusion or foreign material at the outlet and connector
Check for related communication trouble codes (CAN/LIN) to rule out bus issues

Signal parameters

Control supply voltage (low-voltage side): ~11–14.5 V (vehicle battery voltage) at module power pin with ignition ON
Ground continuity: typically
Control/enable signal: 0–5 V logic or PWM enable on control wire (vehicle-dependent) when outlet is requested
AC outlet output voltage when enabled: vehicle-dependent ~110–240 VAC (check vehicle spec) measured at outlet terminals
Communication: CAN/LIN messages present on bus when system active (use diagnostic tool to view)

Diagnostic algorithm

Retrieve and record all DTCs, freeze frame and live data. Note whether code is current or intermittent.
Perform a visual inspection of the outlet, inverter/converter area and harness for damage, contamination or loose connectors.
Verify fuses and relays related to the DC/AC converter and HV outlet; replace any blown fuses and retest.
With appropriate safety measures, check low-voltage power: measure battery voltage at the module power pin with ignition ON. Confirm proper ground continuity at module ground pin.
Check for the presence of the control/enable signal when outlet is commanded on (use a meter or scope). If no enable signal, trace back to the switch/relay or control module.
Inspect connector pins for corrosion or bending; repair or re-pin as needed and retest.
If wiring and supply/ground are good but no proper function, swap or bench-test the relay/contactor if service information allows.
If communication errors are present, diagnose CAN/LIN bus (terminations, voltage levels, wiring, other modules).
If all wiring, fuses, relays and bus are verified good, follow vehicle-specific procedures for module reprogramming or replacement. Replace the control module only after confirming module failure.
After repairs, clear codes and perform functional tests (command outlet on/off, verify AC output voltage and monitor for reoccurrence).

Likely causes

Blown fuse or failed relay for the HV outlet circuit
Damaged or disconnected wiring/connector at the outlet or module
Poor ground or low 12V supply to the control module
Faulty control module internal electronics

Fault status

⚠️ Status

DC/AC Converter A High Voltage Power Outlet Control Module “C” fault detected. Check power/ground, wiring, fuses/relays and the control module for proper operation.

🟡 Repair difficulty: Medium

⏱️ Diagnostic time: 1.0-2.5 hours