P0C19: Drive Motor A Torque Delivered Performance

P0C19 is a plausibility check: the torque that motor A actually delivers, calculated by the motor control processor, does not follow the slewed torque command. GM sets it when the difference exceeds 123 Nm for 0.1875 s within 0.2 s on the 2016 and 2018 tables, Type A, one trip; eAssist uses 36 Nm as Type B, two trips. The 2012 two-mode trucks check whether the sum of the three phase currents exceeds 110 A for 200 ms. Stellantis lists P0C19 on the Jeep Wrangler 4xe and the Wagoneer PHEV with P1B03, a resolver rationality fault, and cures it by reflashing the power inverter module. The electric drive shuts down and the engine takes over.

Symptoms

• Malfunction indicator lamp
• Electric drive shuts off and the engine takes over
• Engine stop-start no longer works or a service hybrid system warning appears

Most likely causes

• Outdated power inverter module software (Stellantis 08-059-25, 08-231-24)
• Implausible rotor position signal from the motor A resolver or its wiring
• Faulty phase current sensing distorting the calculated torque
• Internal fault of the inverter power stage or motor winding

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. Compare the reading with other engine data while varying the engine speed.
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 P0C19 means

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

Frequently asked questions

Can I keep driving with code P0C19?

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 P0C19?

The most common causes are: outdated power inverter module software (Stellantis 08-059-25, 08-231-24); implausible rotor position signal from the motor A resolver or its wiring; faulty phase current sensing distorting the calculated torque.

Related codes

• P0C1ADrive Motor B Torque Delivered Performance
• P0A1BDrive Motor A Control Module Performance
• P0A78Drive Motor A Inverter Performance
• P0A3FDrive Motor A Position Sensor Circuit
• P0BE6Drive Motor A Phase U Current Sensor Circuit Range/Performance

Sources

• gsi.ext.gm.com: 12OBDG06 Hybrid Diagnostics
• gsi.ext.gm.com: 13OBDG05C Hybrid Diagnostics
• gsi.ext.gm.com: 16OBDG01 Hybrid Diagnostics
• static.nhtsa.gov: MC 11015532 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.