- Open or short circuit in the rear motor coils
- Rear motor (MGR) internal malfunction (iron particles or damage from foreign objects)
| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001OR28 |
| Model Year Start: 2020 | Model: RAV4 HV | Prod Date Range: [06/2020 - ] |
| Title: HYBRID / BATTERY CONTROL: REAR MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY): P0A799E,P1C5E19; Drive Motor "B" Inverter Stuck On; 2020 - 2024 MY RAV4 HV [06/2020 - ] | ||
|
DTC |
P0A799E |
Drive Motor "B" Inverter Stuck On |
|
DTC |
P1C5E19 |
Drive Motor "B" Inverter Circuit Current Above Threshold |
DTC SUMMARY
MALFUNCTION DESCRIPTION
This DTC indicates that a large current flowed through the rear motor inverter. The cause of this malfunction may be one of the following:
|
Area |
Main Malfunction Description |
|---|---|
|
Rear traction motor with transaxle assembly |
|
|
Resolver |
Open or short circuit in the rear motor resolver |
Rear motor inverter |
|
|
Inverter cooling system |
|
DESCRIPTION
For a description of the inverter.
Click here
![2020 - 2024 MY RAV4 HV [06/2020 - ]; HYBRID / BATTERY CONTROL: MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY): P0D2D16,P0D2D17,P0D2D1F; Drive Motor "A" Inverter Voltage Sensor(VH) Circuit Voltage Below Threshold+](/t3Portal/stylegraphics/info.gif)
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Warning Indicate |
|---|---|---|---|---|---|
|
P0A799E |
Drive Motor "B" Inverter Stuck On |
Rear motor inverter fail signal detected (circuit malfunction) (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
|
P1C5E19 |
Drive Motor "B" Inverter Circuit Current Above Threshold |
Rear motor inverter fail signal detected: A malfunction is detected in any of the rear motor components (rear motor inverter, rear motor, motor generator control ECU, etc.) (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
Related Data List
|
DTC No. |
Data List |
|---|---|
|
P0A799E P1C5E19 |
Emergency Shutdown Signal |
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
- Connect the Techstream to the DLC3.
- Turn the ignition switch to ON and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the ignition switch off and wait for 2 minutes or more.
- Turn the ignition switch to ON and turn the Techstream on.
- With ignition switch ON and wait for 5 seconds or more.
-
Turn the ignition switch to ON (READY) and wait for 5 seconds or more.
HINT:
Check that there are no abnormalities (abnormal sounds, coolant leaks, etc.).
-
With the vehicle stopped, begin moving with the accelerator opening angle between 20% to 50% and a speed of approximately 10 km/h (6 mph), then stop the vehicle and repeat the same procedure several times.
HINT:
While doing this, check that the "Rear Motor Torque" value does not remain at 0 N*m continuously, but rather changes to indicate that the rear motor is operating.
(Unless rear motor torque is restricted due to DTC output, the rear motor torque will not remain at 0 N*m continuously.)
- Enter the following menus: Powertrain / Rear Motor Generator / Utility / All Readiness.
-
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.
WIRING DIAGRAM
Refer to the wiring diagram for the Generator Resolver Circuit.
Click here
Refer to the wiring diagram for the Motor Resolver Circuit.
Click here
Refer to the wiring diagram for the Rear Motor Resolver Circuit.
Click here
Refer to the wiring diagram for the Generator High-voltage Circuit.
Click here
Refer to the wiring diagram for the Motor High-voltage Circuit.
Click here
Refer to the wiring diagram for the Rear Motor High-voltage Circuit.
Click here
Refer to the wiring diagram for the Inverter Low-voltage Circuit.
Click here
Refer to the wiring diagram for the Cooling System.
Click here
CAUTION / NOTICE / HINT
CAUTION:
-
Before the following operations are conducted, take precautions to prevent electric shock by turning the ignition switch off, wearing insulated gloves, and removing the service plug grip from HV battery.
- Inspecting the high-voltage system
- Disconnecting the low voltage connector of the inverter with converter assembly
- Disconnecting the low voltage connector of the HV battery
-
To prevent electric shock, make sure to remove the service plug grip to cut off the high voltage circuit before servicing the vehicle.
-
After removing the service plug grip from the HV battery, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
-
After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work.
Click here
HINT:
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.
*a
Without waiting for 10 minutes
NOTICE:
-
After turning the ignition switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work.
Click here
- After troubleshooting and repairing all output DTCs, be sure to replace the inverter with converter assembly. (The inverter with converter assembly may have been broken or damaged due to overheating.)
PROCEDURE
|
1. |
GO TO MOTOR GENERATOR CONTROL SYSTEM |
(a) Go to Motor Generator Control System.
Click here
HINT:
For the P0A799E and P1C5E19 inspection procedures, refer to the Motor Generator Control System section.
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END |
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