Powertrain, generic · Hybrid propulsion

P0ABD Hybrid/EV Battery Pack Voltage Sense A Circuit High

Check engine lightOn
EmissionsRelevant
Drive cycleNot required
Limp modePossible

The counterpart to P0ABC: the pack voltage reading is above the highest value the battery could physically reach, which suggests an open reference, a failed divider or a damaged input rather than real overcharging. GM's 2016 and 2019 hybrid tables set P0ABD above 392 V, again with 8 failed samples out of 10 at 25 ms intervals and Type A, so the MIL comes on immediately. For the smaller pack in its 2013 table the limit is 190.1 V, with 7 of 10 samples and Type B. Range and plausibility problems are reported by P0ABB, the low limit by P0ABC. The vehicle typically limits or blocks electric operation until the fault is cleared.

Likely causes

Open ground or reference side of the sense circuit
Voltage divider component failed in the battery controller
Battery controller measurement input defective

Symptoms

  • Hybrid system or check engine warning on
  • Electric drive limited or unavailable

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€150–2,000
Time1–5 h

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

Parts involved

hv battery pack voltage sense awiring harnessbms

Related codes

P0ABCP0ABBP0ABAP0ABEP0AF8

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