| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001OR2G |
| 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): P1C661F,P1CAE49,P1CB138; Drive Motor "B" Control Module Circuit Intermittent; 2020 - 2024 MY RAV4 HV [06/2020 - ] | ||
|
DTC |
P1C661F |
Drive Motor "B" Control Module Circuit Intermittent |
|
DTC |
P1CAE49 |
Drive Motor "B" Position Sensor Internal Electronic Failure |
|
DTC |
P1CB138 |
Drive Motor "B" Position Sensor REF Signal Frequency Incorrect |
DESCRIPTION
The motor generator control ECU, which is built into the inverter with converter assembly, monitors its internal operation and detects malfunctions.
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Warning Indicate |
|---|---|---|---|---|---|
|
P1C661F |
Drive Motor "B" Control Module Circuit Intermittent |
Excitation signal (REF signal) for resolver angle detection cycle malfunction detected when DTC P0C7917, P0D3319, P1C5D19, P1C5F19 or P1C5E19 is stored. (1 trip detection logic) |
|
Does not come on |
Master Warning: Does not come on |
|
P1CAE49 |
Drive Motor "B" Position Sensor Internal Electronic Failure |
Rear motor resolver angle malfunction: The difference between the resolver angle for control and estimated resolver angle exceeds the allowable limit. (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
|
P1CB138 |
Drive Motor "B" Position Sensor REF Signal Frequency Incorrect |
Rear motor resolver REF signal cycle malfunction: Excitation signal (REF signal) for resolver angle detection cycle malfunction. (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
Related Data List
|
DTC No. |
Data List |
|---|---|
|
P1CAE49 |
Rear Motor Revolution |
|
P1CB138 |
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
![2020 - 2024 MY RAV4 HV [06/2020 - ]; HYBRID / BATTERY CONTROL: REAR MOTOR GENERATOR CONTROL SYSTEM (for LITHIUM-ION BATTERY): UTILITY](/t3Portal/stylegraphics/info.gif)
- 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.*
*: Lightly wiggle the connectors and wire harnesses up and down and right and left.
- 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.
- Keep the engine running for 5 seconds or more.
- 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.
WIRING DIAGRAM
Refer to the wiring diagram for DTC P1CAC49.
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
HINT:
- If the problem symptom cannot be reproduced, performing a road test on a road on which the vehicle tends to vibrate will make it easier to reproduce the symptom.
- If the resolver is malfunctioning, the vehicle may not drive smoothly.
- When inspecting the connectors, if it is difficult to judge if a connector was disconnected, deformed or improperly secured, disconnect and reconnect the connector and then check for DTCs again. Check if the same DTC is output. If the same DTC is not output, improper connection of connectors is suspected.
- As a malfunction detection threshold may be exceeded when performing the vibration or heat connector inspections, make sure to perform the following inspection to check that the DTC was not stored due to the malfunction of a part.
PROCEDURE
|
1. |
GO TO MOTOR GENERATOR CONTROL SYSTEM |
(a) Go to Motor Generator Control System.
Click here
HINT:
For the P1C661F, P1CAE49 and P1CB138 inspection procedures, refer to the Motor Generator Control System section.
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END |
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