Last Modified: 05-08-2025 6.11:8.1.0 Doc ID: RM100000001EKKT
Model Year Start: 2019 Model: RAV4 HV Prod Date Range: [11/2018 - 08/2020]
Title: HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY): P0A1B49; Drive Motor "A" Control Module Internal Electronic Failure; 2019 - 2020 MY RAV4 HV [11/2018 - 08/2020]

DTC

P0A1B49

Drive Motor "A" Control Module Internal Electronic Failure

DESCRIPTION

The motor generator control ECU (MG ECU), which is built into the inverter with converter assembly, monitors its internal operation and will store DTCs if the system is malfunctioning.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P0A1B49

Drive Motor "A" Control Module Internal Electronic Failure

MG ECU internal malfunction:

Calculation check error

(1 trip detection logic)

Inverter with converter assembly

Comes 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: HYBRID 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. Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
  8. 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.

REPLACE INVERTER WITH CONVERTER ASSEMBLY

Click here 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

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