Toyota Avalon Service & Repair Manual: Motor Generator ECU(EEPROM) Calibration / Parameter Memory Failure (P1C2E46)

Toyota Avalon Service & Repair Manual / Engine / Hybrid / Battery Control / Motor Generator Control System / Motor Generator ECU(EEPROM) Calibration / Parameter Memory Failure (P1C2E46)

DESCRIPTION

The motor generator control ECU monitors its internal operation and will store this DTC if it detects a malfunction in its EEPROM.

Comes on

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P1C2E46

Motor Generator ECU(EEPROM) Calibration / Parameter Memory Failure

ECU internal malfunction

(EEPROM error)

(2 trip detection logic)

Inverter with converter assembly

Does not come on

Master Warning Light:

Comes on

CONFIRMATION DRIVING PATTERN

HINT:

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 Techstream to the DLC3.
  2. Turn the power switch on (IG) and turn the Techstream 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 Techstream on.
  6. With power switch on (IG) and wait for 5 seconds or more.
  7. Turn the power switch off and wait for 2 minutes or more.
  8. Turn the power switch on (IG) and wait for 5 seconds or more.
  9. Enter the following menus: Powertrain / Motor Generator / Utility / All Readiness.
  10. Check the DTC judgment result.

    HINT:

    • 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.

REPLACE INVERTER WITH CONVERTER ASSEMBLY

Click here

NEXT

COMPLETED

    Generator Execution Torque Performance (P0E7100)

    Hybrid Generator Circuit Current Out of Range (P1CA51D)

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