Powertrain, generic · Hybrid propulsion

P0BFE Drive Motor B Phase U-V-W Current Sensor Correlation

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

P0BFE applies the phase balance test to drive motor B: the controller adds the U, V and W current readings, which should cancel out, and sets the code when the absolute sum stays above a limit. GM uses 156 A on the 2011 Volt and 110 A on the 2012 and 2013 two-mode trucks (Type A, one trip, main relay closed) and 110 A for 0.0032 of 0.0038 s in the 2016 and 2019 tables (Type A). It catches a sensor that reads wrong while each signal alone stays in range, unlike the per-phase codes P0BF2 to P0BFC. GM's single-motor eAssist has no such code. Jeep lists P0BFE on the 2020 Renegade and Compass 1.3 PHEV (EMEA) with the turtle and Service 4WD lights; reprogramming the hybrid processors is the fix.

Likely causes

Hybrid control processor software (Jeep bulletin 08-056-21/08-057-21)
One motor B phase current sensor reading wrong but still within its own limits
Faulty current sensing electronics in the power inverter module

Symptoms

  • Malfunction indicator lamp and hybrid warning
  • Turtle (limp home) light and Service 4WD light (Jeep)
  • Reduced power from drive motor B

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€100–4,000
Time0.5–6 h

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

Parts involved

drive motor b phase u current sensordrive motor b phase v current sensordrive motor b phase w current sensor

Related codes

P0BFDP0BF2P0BF6P0BFAP0BF3P0BFBP0C04P0C08

References: gsi.ext.gm.com, gsi.ext.gm.com, gsi.ext.gm.com, gsi.ext.gm.com.