P0C01: Drive Motor A Current High

P0C01 is the overcurrent check of drive motor A, meant to protect the inverter's IGBTs. GM sets it when any phase current exceeds 725 A on the 2011 Volt, 600 A on the 2012 two-mode trucks and in the 2016 to 2019 tables, or 396 A on eAssist; since 2016 a too negative d-axis current (about -540 to -310 A, depending on stator temperature) also counts. A fast and a slow counter catch sudden and intermittent faults; Type A, one trip. GM PIP5246 links it on Volt and ELR to a damaged motor 1 stator. Stellantis lists it on the 2018/19 Wrangler eTorque (motor generator unit) and on the 2026 Wagoneer S and Cherokee, there caused by cross-threaded three-phase cable bolts. Expect limp mode.

Symptoms

• Limp mode with warning lamp
• Reduced propulsion or engine unavailable message
• Rough running or loud noise from the motor generator

Most likely causes

• Damaged or improperly torqued three-phase cable joints (Stellantis S2608000006)
• Damaged stator winding of motor A (GM PIP5246)
• Outdated hybrid control software (Jeep TSB 08-144-23)
• Failing power switch or current measurement in the inverter

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 P0C01 means

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

Frequently asked questions

Can I keep driving with code P0C01?

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 P0C01?

The most common causes are: damaged or improperly torqued three-phase cable joints (Stellantis S2608000006); damaged stator winding of motor A (GM PIP5246); outdated hybrid control software (Jeep TSB 08-144-23).

Related codes

• P0BFFDrive Motor A Current
• P0C00Drive Motor A Current Low
• P0C04Drive Motor B Current High
• P0C05Drive Motor A Phase U-V-W Circuit/Open
• P0BFDDrive Motor A Phase U-V-W Current Sensor Correlation
• P0BE5Drive Motor A Phase U Current Sensor Circuit
• P0BE9Drive Motor A Phase V Current Sensor Circuit
• P0BEDDrive Motor A Phase W Current Sensor Circuit

Sources

• gsi.ext.gm.com: 11OBDG01 HYBRID Diagnostics
• gsi.ext.gm.com: 12OBDG06 Hybrid Diagnostics
• gsi.ext.gm.com: 13OBDG05C Hybrid Diagnostics
• gsi.ext.gm.com: 16OBDG02 Hybrid Diagnostics

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.