Last Modified: 07-31-2024 |
6.11:8.1.0 |
Doc ID: RM100000001N365 |
Model Year Start: 2021 |
Model: Corolla |
Prod Date Range: [04/2020 - 09/2022] |
Title: HYBRID / BATTERY CONTROL: HYBRID BATTERY SYSTEM (for LITHIUM-ION BATTERY with P610): P0A8196,P0A8198; Hybrid/EV Battery Cooling Fan 1 Component Internal Failure; 2021 - 2022 MY Corolla Corolla HV [04/2020 - 09/2022] |
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.
Click here
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/EV Battery Cooling Fan 1 Frequency" is excessively low or high.
(2 trip detection logic)
|
-
Wire harness or connector
-
Battery cooling blower assembly
-
Battery ECU assembly
-
No. 1 HV battery intake filter
-
No. 1 hybrid battery intake duct
|
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/EV Battery Cooling Fan 1 Frequency" is excessively low or high.
(1 trip detection logic)
|
-
Wire harness or connector
-
Battery cooling blower assembly
-
Battery ECU assembly
-
No. 1 HV battery intake filter
-
No. 1 hybrid battery intake duct
|
Comes on
|
Master Warning:
Comes on
|
Related Data List
DTC No.
|
Data List
|
P0A8196
|
-
Hybrid/EV Battery Cooling Fan 1 Drive Request
-
Hybrid/EV Battery Cooling Fan 1 Drive Status
-
Hybrid/EV Battery Cooling Fan 1 Frequency
|
P0A8198
|
The following items can be helpful when performing repairs:
Data List
-
Hybrid/EV Battery Temperature 1 to 6
-
BATT Voltage
HINT:
"Hybrid/EV 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.
MONITOR DESCRIPTION
If the battery ECU assembly detects that the speed of the battery cooling blower assembly is outside the normal operating range, it will illuminate the MIL and store a DTC.
MONITOR STRATEGY
Related DTCs
|
P0A82 (INF P0A8196): Hybrid/EV Battery Cooling Fan 1 Component Internal Failure
P0A82 (INF P0A8198): Hybrid/EV Battery Cooling Fan 1 Component or System Over Temperature
|
Required sensors/components
|
Battery cooling blower assembly
|
Frequency of operation
|
Continuous
|
Duration
|
TMC's intellectual property
|
MIL operation
|
2 driving cycle / 1 driving cycle
|
Sequence of operation
|
None
|
TYPICAL ENABLING CONDITIONS
The monitor will run whenever the following DTCs are not stored
|
TMC's intellectual property
|
Other conditions belong to TMC's intellectual property
|
-
|
TYPICAL MALFUNCTION THRESHOLDS
TMC's intellectual property
|
-
|
COMPONENT OPERATING RANGE
Battery ECU assembly
|
DTC P0A82 (INF P0A8196) is not detected
DTC P0A82 (INF P0A8198) is not detected
|
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
-
When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" 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 / HV Battery / Active Test / Control the Hybrid/EV Battery Cooling Fan.[*1]
-
Operate the battery cooling blower assembly in each fan mode, 1 through 6, for 60 seconds or more.[*2]
-
Enter the following menus: Powertrain / HV Battery / 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 or N/A, perform the normal judgment procedure again.
WIRING DIAGRAM
Refer to the wiring diagram for DTC P0A8111.
Click here
CAUTION / NOTICE / HINT
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 (HV BATTERY, HYBRID CONTROL)
|
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / HV Battery and Hybrid Control / Trouble Codes.
(d) Check for DTCs.
Powertrain > HV Battery > Trouble Codes
Powertrain > Hybrid Control > Trouble Codes
Result
|
Proceed to
|
P0A8196 or P0A8198 only is output, or DTCs except the ones in the table below are also output.
|
A
|
DTCs of hybrid battery system in the table below are output.
|
B
|
DTCs of hybrid control system in the table below are output.
|
C
|
System
|
Relevant DTC
|
Hybrid Battery System
|
P060A47
|
Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure
|
P060B49
|
Hybrid/EV Battery Energy Control Module A/D Processing Internal Electronic Failure
|
P060687
|
Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message
|
Hybrid Control System
|
P0A1F94
|
Hybrid/EV Battery Energy Control Module Unexpected Operation
|
(e) Turn the power switch off.
A
|
|
|
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 and No. 1 hybrid battery intake duct 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
|
-
|
-
|
OK:
The No. 1 HV battery intake filter, No. 1 hybrid battery intake duct 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
|
OK
|
|
|
3.
|
CHECK HARNESS AND CONNECTOR (BATTERY ECU ASSEMBLY - BATTERY COOLING BLOWER ASSEMBLY)
|
Click here
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
4.
|
CHECK HARNESS AND CONNECTOR (BATTERY ECU ASSEMBLY - BATTERY COOLING BLOWER ASSEMBLY)
|
Click here
NG |
|
REPAIR OR REPLACE HARNESS OR CONNECTOR
|
OK
|
|
|
5.
|
CHECK BATTERY ECU ASSEMBLY (GROUND SHORT CHECK)
|
(a) Remove the battery ECU assembly.
Click here
(b) Measure the resistance according to the value(s) in the table below.
Standard Resistance:
Tester Connection
|
Condition
|
Specified Condition
|
z28-12 (SI0) -z28-4 (GND)
|
Power switch off
|
10 kΩ or higher
|
z28-12 (SI0) -z28-10 (GND1)
|
Power switch off
|
10 kΩ or higher
|
|
|
*a
|
Component without harness connected
(Battery ECU Assembly)
|
|
|
(c) Install the battery ECU assembly.
OK
|
|
|
6.
|
READ VALUE USING TECHSTREAM (HYBRID/EV BATTERY COOLING FAN 1 FREQUENCY)
|
Click here
Result
|
Proceed to
|
Both of the value in the Data List (Hybrid/EV Battery Cooling Fan 1 Frequency) and the actual measured value at the battery ECU assembly connector are 0 Hz.
|
A
|
Other than above
|
B
|
A
|
|
|
7.
|
CHECK BATTERY ECU ASSEMBLY
|
Click here
8.
|
CHECK BATTERY ECU ASSEMBLY (FREQUENCY)
|
Click here
|