- Hybrid Battery Cooling Fan 1 Drive Request
- Hybrid Battery Cooling Fan 1 Drive Status
- Hybrid Battery Cooling Fan 1 Frequency
| Last Modified: 01-30-2024 | 6.11:8.1.0 | Doc ID: RM100000001EKM2 |
| 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): P0A8196,P0A8198; Hybrid/EV Battery Cooling Fan 1 Component Internal Failure; 2019 - 2020 MY RAV4 HV [11/2018 - 08/2020] | ||
|
DTC |
P0A8196 |
Hybrid/EV Battery Cooling Fan 1 Component Internal Failure |
|
DTC |
P0A8198 |
Hybrid/EV Battery Cooling Fan 1 Component or System Over Temperature |
DESCRIPTION
Refer to the description for DTC P0A8111.
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![2019 - 2020 MY RAV4 HV [11/2018 - 06/2020]; HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM (for 2WD with NICKEL METAL HYDRIDE BATTERY): P0A8111,P0A814B; Hybrid/EV Battery Cooling Fan 1 Circuit Short to Ground+](/t3Portal/stylegraphics/info.gif)
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Warning Indicate |
|---|---|---|---|---|---|
|
P0A8196 |
Hybrid/EV Battery Cooling Fan 1 Component Internal Failure |
The battery cooling blower assembly is malfunctioning and the actual speed is not within the specified range of the target speed calculated by the ECU.* *: This DTC is not stored when "Hybrid Battery Cooling Fan 1 Frequency" is excessively low or high. (2 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
|
P0A8198 |
Hybrid/EV Battery Cooling Fan 1 Component or System Over Temperature |
The HV battery temperature is high and the battery cooling blower assembly is malfunctioning and the actual speed is not within the specified range of the target speed calculated by the ECU.* *: This DTC is not stored when "Hybrid Battery Cooling Fan 1 Frequency" is excessively low or high. (1 trip detection logic) |
|
Comes on |
Master Warning: Comes on |
Related Data List
|
DTC No. |
Data List |
|---|---|
|
P0A8196 |
|
|
P0A8198 |
The following items can be helpful when performing repairs:
Data List
- Hybrid Battery Temperature 1 to 3
- BATT Voltage
HINT:
"Hybrid Battery Cooling Fan 1 Frequency" is detected when the battery cooling blower assembly is operating and its value changes in proportion to the battery cooling blower assembly rotation speed.
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 power switch on (IG) and turn the Techstream on.
- Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
- Turn the power switch off and wait for 2 minutes or more.
- Turn the power switch on (READY) and turn the Techstream on.
- Enter the following menus: Powertrain / Hybrid Control / Active Test / Control the Hybrid Battery Cooling Fan.
-
Operate the battery cooling blower assembly in each fan mode, 1 through 6, for 60 seconds or more.
HINT:
Operation of the battery cooling blower assembly can be confirmed by checking if air is sucked into the air intake port of the intake duct.
- Enter the following menus: Powertrain / Hybrid Control / 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 P0A8111.
Click here
CAUTION / NOTICE / HINT
CAUTION:
-
Before the following operations are conducted, take precautions to prevent electric shock by turning the power 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 power 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
PROCEDURE
|
1. |
CHECK DTC OUTPUT (HYBRID CONTROL) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
(d) Check for DTCs.
Powertrain > Hybrid Control > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
P0AFC00 or P0AFC96 is not output. |
A |
|
P0AFC00 or P0AFC96 is output. |
B |
(e) Turn the power switch off.
| B |
|
GO TO DTC CHART (HYBRID CONTROL SYSTEM)
|
|
|
2. |
CHECK DUCT AND BLOWER |
CAUTION:
Be sure to wear insulated gloves.
(a) Check that the service plug grip is not installed.
NOTICE:
After removing the service plug grip, do not turn the power switch on (READY), unless instructed by the repair manual because this may cause a malfunction.
(b) Remove the rear seat cushion leg sub-assembly.
Click here
(c) Check that the No. 1 HV battery intake filter, battery cooling blower assembly, No. 1 hybrid battery intake duct and No. 1 hybrid battery intake duct LH are not disconnected, damaged, or clogged with foreign matter.
|
*1 |
No. 1 HV Battery Intake Filter |
*2 |
Battery Cooling Blower Assembly |
|
*3 |
No. 1 Hybrid Battery Intake Duct |
*4 |
No. 1 Hybrid Battery Intake Duct LH |
OK:
The No. 1 HV battery intake filter, No. 1 hybrid battery intake duct, No. 1 hybrid battery intake duct LH and battery cooling blower assembly blower are not disconnected, damaged, or clogged with foreign matter.
(d) Install the rear seat cushion leg sub-assembly.
| NG |
|
CORRECT THE PROBLEM |
|
|
3. |
CHECK HARNESS AND CONNECTOR (BATTERY VOLTAGE SENSOR - BATTERY COOLING BLOWER ASSEMBLY) |
Click here
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
4. |
CHECK HARNESS AND CONNECTOR (HYBRID VEHICLE CONTROL ECU ASSEMBLY - BATTERY COOLING BLOWER ASSEMBLY) |
Click here
| NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR |
|
|
5. |
CHECK HYBRID VEHICLE CONTROL ECU ASSEMBLY (GROUND SHORT CHECK) |
(a) Remove the hybrid vehicle control ECU assembly.
Click here
(b) Measure the resistance according to the value(s) in the table below.
|
*a |
Component without harness connected (Hybrid Vehicle Control ECU Assembly) |
- |
- |
Standard Resistance:
|
Tester Connection |
Condition |
Specified Condition |
|---|---|---|
|
A31-38 (SI0) - A31-12 (E01) |
Power switch off |
10 kΩ or higher |
|
A31-38 (SI0) - A31-11 (E02) |
Power switch off |
10 kΩ or higher |
(c) Install the hybrid vehicle control ECU assembly.
| NG |
|
REPLACE HYBRID VEHICLE CONTROL ECU ASSEMBLY
|
|
|
6. |
READ VALUE USING TECHSTREAM (COOLING FAN FREQUENCY) |
Click here
|
Result |
Proceed to |
|---|---|
|
Both of the values in the Data List (Hybrid Battery Cooling Fan 1 Frequency) and the actual measured value at the battery voltage sensor connector are 0 Hz. |
A |
|
Other than above |
B |
| B |
|
|
|
7. |
CHECK BATTERY VOLTAGE SENSOR |
Click here
| OK |
|
| NG |
|
REPLACE BATTERY VOLTAGE SENSOR
|
|
8. |
CHECK BATTERY VOLTAGE SENSOR (FREQUENCY) |
Click here
| OK |
|
| NG |
|
REPLACE BATTERY VOLTAGE SENSOR
|
|
|