Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
Circuit/System Verification
- Vehicle in Service Mode.
- Verify that DTC U1104 is not set.
- If DTC U1104 is set
Refer to Diagnostic Trouble Code (DTC) List - Vehicle .
- Go to next step: If DTC U1104 is not set
- If DTC U1104 is set
- Verify no other Hybrid/Electric Vehicle battery-related DTCs are set.
- If any hybrid/EV battery-related DTCs are set
- Go to next step: If no hybrid/EV battery-related DTCs are set
- Vehicle OFF. Ensure the charge cord is not connected to the vehicle.
- Verify the vehicle charge indicator is OFF.
- If the vehicle charge indicator is not OFF
Refer to DTC U1104 .
- Go to next step: If the vehicle charge indicator is OFF
- If the vehicle charge indicator is not OFF
- Connect the charge cord.
- Verify the vehicle charge indicator is operating properly.
- If the vehicle charge indicator is pulsing red
Refer to Plug-In Charging Malfunction (DC Charging) (K2O/K28) , or Plug-In Charging Malfunction (AC Charging) (K2O/K28) , or Plug-In Charging Malfunction (DC Charging) (K2W) , or Plug-In Charging Malfunction (AC Charging) (K2W)
- If the vehicle charge indicator is not operating properly
- Vehicle ON.
- Verify the Charge Cord Connected message is displayed in the instrument panel/message center.
- If the Charge Cord Connected message is displayed, refer to Circuit/System Testing.
- Go to next step: If the Charge Cord Connected message is NOT displayed
- Refer to Plug-In Charging Malfunction (DC Charging) (K2O/K28) , or Plug-In Charging Malfunction (AC Charging) (K2O/K28) , or Plug-In Charging Malfunction (DC Charging) (K2W) , or Plug-In Charging Malfunction (AC Charging) (K2W) .
NOTE:Vehicle must be ON and not in Service Mode for message operation.
- Go to next step: If the vehicle charge indicator is operating properly
- If the vehicle charge indicator is pulsing red
- All OK.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.