Powertrain, generic · Hybrid propulsion

P0BE6 Drive Motor A Phase U Current Sensor Circuit Range/Performance

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

GM uses P0BE6 as the offset check of the phase U current sensor in the motor A inverter. At every start, while no current flows, the controller learns the sensor's zero offset; if it exceeds 30 A (2011 Volt and 2016 tables, Type A; 2012 two-mode trucks, Type B) or 35 A (2019 table, Type A), the code sets. In GM's BAS Plus (eAssist) table a fault of this sensor makes current control switch to an alternate mode that does not use the current sensors. Jeep lists P0BE6 with the other phase current codes on the 2020 Renegade and Compass 1.3 PHEV for Europe, with the turtle and Service 4WD lights, and fixes it by reprogramming the hybrid control processors.

Likely causes

Hybrid control processor software (Jeep bulletin 08-056-21/08-057-21)
Zero offset of the phase U current sensor drifted beyond the limit
Faulty sensing electronics in the power inverter module

Symptoms

  • Malfunction indicator lamp
  • Turtle (limp home) light and Service 4WD light (Jeep)
  • Reduced electric drive power

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 a phase u current sensorwiring harnesshybrid control module

Related codes

P0BE5P0BE7P0BE8P0BEAP0BEEP0BFDP0BF2

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