Obdaryn

P0BF6Drive Motor B Phase V Current Sensor Circuit Range/Performance

  • Generic OBD-II code · Powertrain
  • Turns on the check-engine light
  • Matters for the ITP
  • Can trigger limp mode
How the car detects it
P0BF6 is the performance check of the phase V current sensor in the motor B inverter, implemented by GM as a zero offset test. The offset is learned at every start with no current through the motor and must stay within 30 A on the 2011 Volt (Type A, P0BEB/P0BEC not active, as printed in the table) and in the 2016 tables (Type A, 0.1 s), within 30 A on the 2012 and 2013 two-mode trucks (Type B, two trips) and within 35 A in a 2019 table (Type A, 0.4 s). A shifted zero would skew torque control and the phase current balance. Jeep names P0BF6 as Drive Motor B Inverter Phase V Current Sensor Circuit Range/Performance on the 2020 Renegade and Compass 1.3 PHEV (EMEA), fixed by reflashing the hybrid control processors.
What you may notice
  • Malfunction indicator lamp
  • Turtle (limp home) light and Service 4WD light (Jeep)
  • Reduced electric drive power
Likely causes
  • LikelyHybrid control processor software (Jeep bulletin 08-056-21/08-057-21)
  • PossibleZero point of the motor B phase V current sensor drifted past the limit
  • PossibleFaulty current sensing electronics in the power inverter module
Inspection (ITP)
Matters for the ITP. While the check-engine light is on, the car fails the emissions check.
Repair
Workshop only · Usually a job for a workshop.Typical cost: €100 – €4,000

Explanation from obdex (CC0), exactly as the app shows it. Guidance only; confirm with a workshop.