MOTOR GENERATOR CONTROL SYSTEM, Diagnostic DTC:P0C3811, P0C3815, P0C3D11, P0C3D15

DTC Code DTC Name
P0C3811 DC/DC Converter Temperature Sensor "A" Circuit Short to Ground
P0C3815 DC/DC Converter Temperature Sensor "A" Circuit Short to Battery or Open
P0C3D11 DC/DC Converter Temperature Sensor "B" Circuit Short to Ground
P0C3D15 DC/DC Converter Temperature Sensor "B" Circuit Short to Battery or Open

DESCRIPTION

The motor generator control ECU (MG ECU) located in the inverter with converter assembly detects the temperature of the boost converter using the temperature sensor built into the boost converter. The motor generator control ECU (MG ECU) detects malfunctions in the boost converter temperature sensor and its wiring.

DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P0C3811 DC/DC Converter Temperature Sensor "A" Circuit Short to Ground

Short to ground detected in boost converter temperature sensor (upper) signal circuit

(1 trip detection logic)

 Inverter with converter assembly Comes on

Master Warning Light:

Comes on
P0C3815 DC/DC Converter Temperature Sensor "A" Circuit Short to Battery or Open

Open or short to +B detected in boost converter temperature sensor (upper) signal circuit

(1 trip detection logic)

 Inverter with converter assembly Comes on

Master Warning Light:

Comes on
P0C3D11 DC/DC Converter Temperature Sensor "B" Circuit Short to Ground

Short to ground detected in boost converter temperature sensor (lower) signal circuit

(1 trip detection logic)

 Inverter with converter assembly Comes on

Master Warning Light:

Comes on
P0C3D15 DC/DC Converter Temperature Sensor "B" Circuit Short to Battery or Open

Open or short to +B detected in boost converter temperature sensor (lower) signal circuit

(1 trip detection logic)

 Inverter with converter assembly Comes on

Master Warning Light:

Comes on
Related Data List
DTC No. Data List
P0C3811 Boosting Converter Temperature (Upper)
P0C3815
P0C3D11 Boosting Converter Temperature 1 (Lower)
P0C3D15

CONFIRMATION DRIVING PATTERN

Tech Tips

After repair has been completed, clear the DTC and then check that the vehicle has returned to normal by performing the following All Readiness check procedure.

Click here


  1. Connect the GTS to the DLC3.

  2. Turn the power switch on (IG) and turn the GTS on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the power switch off and wait for 2 minutes or more.

  5. Turn the power switch on (IG) and turn the GTS on.

  6. With power switch on (IG) and wait for 5 seconds or more.

  7. Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.

  8. Check the DTC judgment result.

    Tech Tips


    • If the judgment result shows NORMAL, the system is normal.

    • If the judgment result shows ABNORMAL, the system has a malfunction.

    • If the judgment result shows INCOMPLETE or N/A, perform driving pattern again.

PROCEDURE


  1. REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS

    Click here

    Result
    Proceed to
    NEXT

    NEXT

    COMPLETED