Powertrain, generic · Hybrid propulsion

P0BEA Drive Motor A Phase V Current Sensor Circuit Range/Performance

Check engine lightOn

EmissionsRelevant

Drive cycleNot required

Limp modePossible

P0BEA is the performance check of the phase V current sensor in the motor A inverter. GM implements it as an offset test: with no current flowing at start-up, the learned zero point must stay within 30 A (2011 Volt, 2016 tables, Type A; 2012 two-mode trucks, Type B, with P0BEB/P0BEC not active) or 35 A (2019 table, Type A, after a 0.4 s delay). A sensor whose zero has drifted would distort torque control and the phase current balance. Jeep names P0BEA among the phase current codes of the 2020 Renegade and Compass 1.3 PHEV for EMEA markets, together with the turtle and Service 4WD lights; the remedy is a software update of the hybrid control processor and power inverter.

Likely causes

Hybrid control processor software (Jeep bulletin 08-056-21/08-057-21)

Zero offset of the phase V 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 v current sensorwiring harnesshybrid control module

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