HYBRID / BATTERY CONTROL: REAR MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY): P0BF112,...,P0BF91F; Drive Motor "B" Phase U Current Sensor Circuit Short to Battery; 2020 - 2024 MY RAV4 HV [06/2020

DTC SUMMARY

MALFUNCTION DESCRIPTION

These DTCs indicate that the current sensor value is abnormal. The cause of this malfunction may be one of the following:

Inverter internal malfunction

Inverter with converter assembly internal circuit malfunction

Inverter low-voltage circuit malfunction

The connectors are not connected properly

DESCRIPTION

The motor generator control ECU (MG ECU), which is built into the inverter with converter assembly, monitors the rear motor inverter current sensor. These DTCs indicate the malfunction of current sensors and do not indicate a malfunction of the high-voltage system.

DTC No.

Detection Item

DTC Detection Condition

Trouble Area

MIL

Warning Indicate

P0BF112

Drive Motor "B" Phase U Current Sensor Circuit Short to Battery

Malfunction in rear motor inverter current sensor (phase U main sensor) (Short to +B)

(1 trip detection logic)

Wire harness or connector
Inverter with converter assembly

Comes on

Master Warning:

Comes on

P0BF114

Drive Motor "B" Phase U Current Sensor Circuit Short to Ground or Open

Malfunction in rear motor inverter current sensor (phase U main sensor) (Open or short to ground)

(1 trip detection logic)

Wire harness or connector
Inverter with converter assembly

Comes on

Master Warning:

Comes on

P0BF11F

Drive Motor "B" Phase U Current Sensor Circuit Intermittent

Short to +B, open or short to ground detected in rear motor inverter current sensor (phase U main sensor) when DTC P0C7917, P0D3319, P1C5D19, P1C5F19 or P1C5E19 is stored.

(1 trip detection logic)

Wire harness or connector
Inverter with converter assembly

Does not come on

Master Warning:

Does not come on

P0BF512

Drive Motor "B" Phase V Current Sensor Circuit Short to Battery

Malfunction in rear motor inverter current sensor (phase V main sensor) (Short to +B)

(1 trip detection logic)

Wire harness or connector
Inverter with converter assembly

Comes on

Master Warning:

Comes on

P0BF514

Drive Motor "B" Phase V Current Sensor Circuit Short to Ground or Open

Malfunction in rear motor inverter current sensor (phase V main sensor) (Open or short to ground)

(1 trip detection logic)

Wire harness or connector
Inverter with converter assembly

Comes on

Master Warning:

Comes on

P0BF51F

Drive Motor "B" Phase V Current Sensor Circuit Intermittent

Short to +B, open or short to ground detected in rear motor inverter current sensor (phase V main sensor) when DTC P0C7917, P0D3319, P1C5D19, P1C5F19 or P1C5E19 is stored.

(1 trip detection logic)

Wire harness or connector
Inverter with converter assembly

Does not come on

Master Warning:

Does not come on

P0BF912

Drive Motor "B" Phase W Current Sensor Circuit Short to Battery

Malfunction in rear motor inverter current sensor (phase W main sensor) (Short to +B)

(1 trip detection logic)

Wire harness or connector
Inverter with converter assembly

Comes on

Master Warning:

Comes on

P0BF914

Drive Motor "B" Phase W Current Sensor Circuit Short to Ground or Open

Malfunction in rear motor inverter current sensor (phase W main sensor) (Open or short to ground)

(1 trip detection logic)

Wire harness or connector
Inverter with converter assembly

Comes on

Master Warning:

Comes on

P0BF91F

Drive Motor "B" Phase W Current Sensor Circuit Intermittent

Short to +B, open or short to ground detected in rear motor inverter current sensor (phase W main sensor) when DTC P0C7917, P0D3319, P1C5D19, P1C5F19 or P1C5E19 is stored.

(1 trip detection logic)

Wire harness or connector
Inverter with converter assembly

Does not come on

Master Warning:

Does not come on

CONFIRMATION DRIVING PATTERN

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.

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.
Depress the accelerator pedal of the vehicle with the engine stopped and the shift lever in P to start the engine.
Drive the vehicle forward with the shift lever in D for 5 m (16 ft.) or more.
Drive the vehicle backward with the shift lever in R for 5 m (16 ft.) or more.
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.

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

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.

PROCEDURE

For the P0BF112, P0BF114, P0BF11F, P0BF512, P0BF514, P0BF51F, P0BF912, P0BF914 and P0BF91F inspection procedures, refer to the Motor Generator Control System section.