Powertrain, generic (extended)

P2CC6 Generator Inverter Power Supply B Circuit Low

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P2CC6 means supply B of the generator inverter is present but below its permitted level. A weak gate driver feed is dangerous for the power stage: transistors that are not driven fully on run in a lossy partial state and heat up quickly, so the inverter typically blocks the generator. No manufacturer documents P2CC6 publicly. Ford's summary for its 2019 power-split hybrids places the related supply A code P0E10 among the generator-side gate signal faults together with P0BCE and P0BCF, which suggests the same home for supply B. Causes range from a failing internal regulator to low 12 V input during start-up or a corroded ground. CARB requires circuit monitoring for hybrid parts. Siblings: P2CC5 (open) and P2CC7 (high).

Likely causes

Internal regulator of supply B delivering too little voltage
Low 12 V input to the inverter, e.g. weak auxiliary battery
Corroded ground or connector of the inverter

Symptoms

  • Hybrid system warning light and MIL on
  • Generator limited or switched off, reduced hybrid performance

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€100–4,500
Time0.5–5 h

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

Parts involved

generator inverter bwiring harnesshybrid control module

Related codes

P2CC5P2CC7P0E10P0BCEP0BCF

References: fordservicecontent.com, law.cornell.edu, gsi.ext.gm.com.