Damaged or chafed phase cable between the inverter and the motor, causing a short to ground or to another phase; Loose or corroded terminal at the motor or inverter phase connection, creating high resistance and current imbalance; Internal fault in the drive motor 'A' stator windings, such as a shorted turn or insulation breakdown; Failed current sensor or signal circuit inside the inverter that misreports phase current; Faulty inverter power module or gate driver affecting one phase output; Coolant contamination or overheating of the inverter or motor that alters current characteristics

DTC codes / P2Cxx · Hybrid propulsion / P2C69

P2C69Drive Motor "A" Phase X Current

Q: What does code P2C69 mean?

Drive Motor "A" Phase X Current. P2C69 indicates that the inverter controller for drive motor 'A' has detected an abnormal current level on one specific electrical phase (Phase X) of the three-phase motor circuit. The computer compares commanded current to measured feedback and sets this code when the phase current deviates outside the expected range, pointing to a problem in the motor windings, phase cabling, or inverter output stage.

P2C69 indicates that the inverter controller for drive motor 'A' has detected an abnormal current level on one specific electrical phase (Phase X) of the three-phase motor circuit. The computer compares commanded current to measured feedback and sets this code when the phase current deviates outside the expected range, pointing to a problem in the motor windings, phase cabling, or inverter output stage.

SystemPowertrain

Code typeGeneric (all makes)

SeverityHigh

Fix difficultyProfessional

AreaHybrid propulsion

Symptoms you may notice

Illumination of the hybrid or electric vehicle warning light, often with a reduced power message
The vehicle may enter a fail-safe mode that limits motor torque or prevents further acceleration
Intermittent shuddering or hesitation during acceleration as the inverter limits current to protect the motor
A sudden loss of propulsion or inability to restart after the code sets, depending on the safety strategy
Often no symptoms besides the warning light if the fault is stored but not currently active

Common causes, most likely first

Damaged or chafed phase cable between the inverter and the motor, causing a short to ground or to another phase
Loose or corroded terminal at the motor or inverter phase connection, creating high resistance and current imbalance
Internal fault in the drive motor 'A' stator windings, such as a shorted turn or insulation breakdown
Failed current sensor or signal circuit inside the inverter that misreports phase current
Faulty inverter power module or gate driver affecting one phase output
Coolant contamination or overheating of the inverter or motor that alters current characteristics

How to diagnose and fix it

Retrieve all stored and pending codes with a scan tool capable of reading hybrid/EV-specific modules, then record freeze-frame data
Visually inspect the phase cables and connectors between the inverter and motor for chafing, corrosion, or loose fasteners
Perform a insulation resistance test on each phase cable and motor winding using a megohmmeter rated for the system voltage
Check the motor winding resistance across phases with a precision milliohmmeter and compare to specifications
Verify the inverter current sensor signal with an oscilloscope or manufacturer-specific diagnostic software while commanding a known load
If the inverter is suspect, follow the manufacturer's guided diagnostic procedure for the power module and current sensor circuit
After repair, clear codes and perform a road test with a scan tool monitoring phase current values to confirm the fault does not return

Phase current faults that fool good technicians

A loose phase cable terminal often produces a current imbalance only under high load, so a static resistance check can pass while the code still sets during a test drive.
The code can be set by a failing 12-volt auxiliary battery causing low-voltage glitches in the inverter controller, so always check system voltage and grounds before condemning the motor.
Phase X is a placeholder in the generic definition; the actual phase (A, B, or C) is identified only by the manufacturer's enhanced diagnostic data, so do not assume a physical layout without that information.
Coolant leaks into the inverter housing can cause intermittent phase current faults that disappear after the unit dries out, leading to a misdiagnosis of a motor winding problem.
A motor that passes a static insulation test can still have an intermittent short that only appears when the windings are hot, so a cold test alone is not conclusive.

Can I keep driving with P2C69?

Do not continue driving with an active P2C69 code because the vehicle may enter a reduced-power or shutdown mode without warning. Have the vehicle towed to a qualified hybrid/EV service facility for diagnosis, and avoid any attempt to clear the code and resume normal driving.

Tools that help

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Guidance is general and written for all OBD-II vehicles. Exact tests and values vary by model, so confirm the fault before replacing parts.