Last Modified: 01-30-2024 6.11:8.1.0 Doc ID: RM100000001EKNT
Model Year Start: 2019 Model: RAV4 HV Prod Date Range: [11/2018 - 08/2020]
Title: HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY): P1C2E46; Motor Generator ECU(EEPROM) Calibration / Parameter Memory Failure; 2019 - 2020 MY RAV4 HV [11/2018 - 08/2020]

DTC

P1C2E46

Motor Generator ECU(EEPROM) Calibration / Parameter Memory Failure

DESCRIPTION

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

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:

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 2019 - 2020 MY RAV4 HV [11/2018 - 08/2020]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY): UTILITY

  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, perform driving pattern again.

PROCEDURE

1.

CHECK AUXILIARY BATTERY VOLTAGE

Click here 2019 MY RAV4 HV [11/2018 - 02/2019]; A25A-FXS (BATTERY / CHARGING): CHARGING SYSTEM: ON-VEHICLE INSPECTION 2019 MY RAV4 HV [02/2019 - 10/2019]; A25A-FXS (BATTERY / CHARGING): CHARGING SYSTEM: ON-VEHICLE INSPECTION 2020 MY RAV4 HV [10/2019 - 08/2020]; A25A-FXS (BATTERY / CHARGING): CHARGING SYSTEM: ON-VEHICLE INSPECTION

HINT:

If the auxiliary battery voltage inspection results are normal, perform the next step.

NEXT

2.

CLEAR DTC

(a) Clear the DTCs.

Powertrain > Motor Generator > Clear DTCs

(b) Turn the power switch off and wait for 2 minutes or more.

NEXT

3.

SIMULATION TEST

(a) Turn the power switch on (IG) and wait for 5 seconds or more.

(b) Turn the power switch off and wait for 2 minutes or more.

(c) Turn the power switch on (IG) and wait for 5 seconds or more.

(d) Check for DTCs.

Powertrain > Motor Generator > Trouble Codes

Result

Proceed to

P1C2E46 is output.

A

P1C2E46 is not output.

B

(e) Turn the power switch off.

A

REPLACE INVERTER WITH CONVERTER ASSEMBLY 2019 MY RAV4 HV [11/2018 - 02/2019]; HYBRID / BATTERY CONTROL: INVERTER WITH CONVERTER (for 2WD): REMOVAL 2019 MY RAV4 HV [02/2019 - 10/2019]; HYBRID / BATTERY CONTROL: INVERTER WITH CONVERTER (for 2WD): REMOVAL 2020 MY RAV4 HV [10/2019 - 08/2020]; HYBRID / BATTERY CONTROL: INVERTER WITH CONVERTER (for 2WD): REMOVAL

B

CHECK FOR INTERMITTENT PROBLEMS