P0CA6: Hybrid/EV Battery Charging Current High

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.

Symptoms

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

Most 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

What to check, in order

Start with the simplest. You can tick off each step.

1. Read the codes with a hybrid-compatible scanner and write down the freeze frame data
2. Check the sensor's ground and make sure the signal wire is not receiving voltage from another circuit.
3. Make sure the battery cooling air intake is clean
4. Check the 12 V auxiliary battery, which can also trigger warnings
5. Leave any high-voltage measurements to a specialized repair shop

Good to know

• It can trigger limp mode.
• It affects emissions.

What each character of P0CA6 means

• P: Powertrain: engine and transmission
• 0: Generic code: same on every make
• C: Subsystem depends on the code range
• A6: Specific fault in that system

Frequently asked questions

Can I keep driving with code P0CA6?

If the car still runs, drive as little as possible and go to a specialized repair shop. Do not touch the orange cables: they carry high voltage.

What causes code P0CA6?

The most common causes are: 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.

Related codes

• P0CA7Hybrid/EV Battery Discharging Current High
• P0CA4Hybrid/EV Battery Charging Voltage High
• P0ABFHybrid/EV Battery Pack Current Sensor A Circuit
• P0AC0Hybrid/EV Battery Pack Current Sensor A Circuit Range/Performance
• P0D2ABattery Charger Input Current Too High

Sources

• mitsubishitechinfo.com: M15492909A000100USA
• mitsubishitechinfo.com: M154929090001500USA
• static.nhtsa.gov: MC 10244410 9999
• static.nhtsa.gov: MC 11014364 0001

Values and procedures vary by manufacturer. If it affects brakes, steering, fuel or high voltage, see a professional. Updated: 2026-11-04. How we build these pages.