Powertrain, generic · Hybrid propulsion

P0CA6 Hybrid/EV Battery Charging Current High

Check engine lightOn
EmissionsRelevant
Drive cycleRequired
Limp modePossible

P0CA6 flags a current into the traction battery that exceeds what the control system expects. Mitsubishi's Outlander PHEV (2018 and 2022) stores it in the PHEV-ECU when, in charging mode, the measured battery current stays above the calculated charger output request for 5 s; suspects are the BMU, the onboard charger/DC-DC converter and the PHEV-ECU, and the repair is confirmed with drive cycle pattern 7. Stellantis sees the code in the battery pack control module (BPCM): a 2023 STAR case for the Wrangler 4xe points to BPCM software, and bulletin 08-025-25 for the 2025 Dodge Charger EV brings charging-related changes against false P0CA6 entries, there combined with P167B and no Drive Ready. P0CA7 is the discharging counterpart.

Likely causes

Battery control module software (Stellantis S2308000117, 08-025-25)
Onboard charger or DC-DC converter delivering more current than requested
Pack current sensor or battery management unit reading wrongly
Fault in the hybrid/PHEV control unit

Symptoms

  • Check-engine lamp, often found after charging
  • Charging interrupted or not possible
  • Vehicle not entering ready mode on some EVs

Repair estimate

DifficultyShop_onlyWorkshop job
Parts and labour€0–2,500
Time0.5–4 h

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

Parts involved

hv batterybms

Related codes

P0CA7P0CA4P0ABFP0AC0P0D2A

References: mitsubishitechinfo.com, mitsubishitechinfo.com, static.nhtsa.gov, static.nhtsa.gov.