| Last Modified: 05-13-2024 | 6.11:8.1.0 | Doc ID: RM1000000026PYZ |
| Model Year Start: 2023 | Model: Corolla HV | Prod Date Range: [09/2022 - ] |
| Title: HYBRID / BATTERY CONTROL: HYBRID BATTERY SYSTEM (for LITHIUM-ION BATTERY with PA10): P0A9B2A,...,P306A62; Hybrid/EV Battery Temperature Sensor "A" Signal Stuck In Range; 2023 - 2025 MY Corolla HV [09/2022 - ] | ||
|
DTC |
P0A9B2A |
Hybrid/EV Battery Temperature Sensor "A" Signal Stuck In Range |
|
DTC |
P0AC52A |
Hybrid/EV Battery Temperature Sensor "B" Signal Stuck In Range |
|
DTC |
P0ACA2A |
Hybrid/EV Battery Temperature Sensor "C" Signal Stuck In Range |
|
DTC |
P0AE82A |
Hybrid/EV Battery Temperature Sensor "D" Signal Stuck In Range |
|
DTC |
P0BC22A |
Hybrid/EV Battery Temperature Sensor "E" Signal Stuck In Range |
|
DTC |
P0C332A |
Hybrid/EV Battery Temperature Sensor "F" Signal Stuck In Range |
|
DTC |
P306562 |
Hybrid/EV Battery Temperature Sensor "Group 1" Signal Compare Failure |
|
DTC |
P306A62 |
Hybrid/EV Battery Temperature Sensor "Group 2" Signal Compare Failure |
DESCRIPTION
Refer to the description for DTC P0A9B11.
Click here
![2023 - 2025 MY Corolla HV [09/2022 - ]; HYBRID / BATTERY CONTROL: HYBRID BATTERY SYSTEM (for LITHIUM-ION BATTERY with PA10): P0A9B11,...,P0C3315; Hybrid/EV Battery Temperature Sensor "A" Circuit Short to Ground+](/t3Portal/stylegraphics/info.gif)
|
DTC No. |
Detection Item |
DTC Detection Condition |
Trouble Area |
MIL |
Warning Indicate |
Note |
|---|---|---|---|---|---|---|
|
P0A9B2A |
Hybrid/EV Battery Temperature Sensor "A" Signal Stuck In Range |
The performance of battery temperature sensor 0 is abnormal and its output is stuck. (2 trip detection logic) |
|
Comes on |
Master warning: Comes on |
SAE Code: P0A9C |
|
P0AC52A |
Hybrid/EV Battery Temperature Sensor "B" Signal Stuck In Range |
The performance of battery temperature sensor 1 is abnormal and its output is stuck. (2 trip detection logic) |
|
Comes on |
Master warning: Comes on |
SAE Code: P0AC6 |
|
P0ACA2A |
Hybrid/EV Battery Temperature Sensor "C" Signal Stuck In Range |
The performance of battery temperature sensor 2 is abnormal and its output is stuck. (2 trip detection logic) |
|
Comes on |
Master warning: Comes on |
SAE Code: P0ACB |
|
P0AE82A |
Hybrid/EV Battery Temperature Sensor "D" Signal Stuck In Range |
The performance of battery temperature sensor 3 is abnormal and its output is stuck. (2 trip detection logic) |
|
Comes on |
Master warning: Comes on |
SAE Code: P0AE9 |
|
P0BC22A |
Hybrid/EV Battery Temperature Sensor "E" Signal Stuck In Range |
The performance of battery temperature sensor 4 is abnormal and its output is stuck. (2 trip detection logic) |
|
Comes on |
Master warning: Comes on |
SAE Code: P0BC3 |
|
P0C332A |
Hybrid/EV Battery Temperature Sensor "F" Signal Stuck In Range |
The performance of battery temperature sensor 5 is abnormal and its output is stuck. (2 trip detection logic) |
|
Comes on |
Master warning: Comes on |
SAE Code: P0C34 |
|
P306562 |
Hybrid/EV Battery Temperature Sensor "Group 1" Signal Compare Failure |
The performance of any battery temperature sensor (0 to 2) is abnormal and the difference in output between it and each other battery temperature sensor is excessively large. (1 trip detection logic) |
|
Comes on |
Master warning: Comes on |
SAE Code: P3065 |
|
P306A62 |
Hybrid/EV Battery Temperature Sensor "Group 2" Signal Compare Failure |
The performance of any battery temperature sensor (3 to 5) is abnormal and the difference in output between it and each other battery temperature sensor is excessively large. (1 trip detection logic) |
|
Comes on |
Master warning: Comes on |
SAE Code: P306A |
HINT:
If the vehicle as is left as is for 24 hours, the value of "Hybrid/EV Battery Temperature" will be almost the same as the ambient temperature.
MONITOR DESCRIPTION
If the battery ECU assembly detects a malfunction in the HV battery temperature sensor, the battery ECU assembly illuminates the MIL and set a DTC.
MONITOR STRATEGY
|
Related DTCs |
P0A9C (INF P0A9B2A), P0AC6 (INF P0AC52A), P0ACB (INF P0ACA2A), P0AE9 (INF P0AE82A), P0BC3 (INF P0BC22A), P0C34 (INF P0C332A): Battery temperature sensor malfunction (stuck) P3065 (INF P306562), P306A (INF P306A62): Battery temperature sensor malfunction (deviation) |
|
Required sensors/components |
Battery temperature sensor |
|
Frequency of operation |
Continuous |
|
Duration |
TMC's intellectual property |
|
MIL operation |
1 driving cycle / 2 driving cycles |
|
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 P0A9C (INF P0A9B2A) is not detected DTC P0AC6 (INF P0AC52A) is not detected DTC P0ACB (INF P0ACA2A) is not detected DTC P0AE9 (INF P0AE82A) is not detected DTC P0BC3 (INF P0BC22A) is not detected DTC P0C34 (INF P0C332A) is not detected DTC P3065 (INF P306562) is not detected DTC P306A (INF P306A62) 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
P0A9B2A, P0AC52A, P0ACA2A, P0AE82A, P0BC22A, P0C332A:
- Connect the GTS to the DLC3.
- Turn the ignition switch to ON and turn the GTS 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 GTS on.
-
Drive the vehicle for approximately 10 minutes according to the freeze frame data items "Vehicle Speed", "Accelerator Position", "Hybrid/EV Battery Temperature 1 to 6" and "Hybrid/EV Battery Current" when ambient temperature is -10°C (14°F) or higher.[*1]
HINT:
- Check that the output of each battery temperature sensor varies.
- Check that the difference in output between each battery temperature sensor is not excessively large.
-
[*1]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- 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, perform the normal judgment procedure again.
P306562, P306A62:
- Connect the GTS to the DLC3.
- Turn the ignition switch to ON and turn the GTS 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 GTS on.
-
With ignition switch ON and wait for 10 seconds or more when the ambient temperature is -10°C (14°F) or higher.[*1]
HINT:
- Check that the difference in output between each battery temperature sensor is not large.
-
[*1]: Normal judgment procedure.
The normal judgment procedure is used to complete DTC judgment and also used when clearing permanent DTCs.
- 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 P0A9B11.
Click here
CAUTION / NOTICE / HINT
CAUTION:
Refer to the precautions before inspecting high voltage circuit.
Click here
NOTICE:
-
After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
Click here
-
When disconnecting and reconnecting the auxiliary battery
HINT:
When disconnecting and reconnecting the auxiliary battery, there is an automatic learning function that completes learning when the respective system is used.
Click here
PROCEDURE
|
1. |
CHECK DTC OUTPUT (HV BATTERY, HYBRID CONTROL) |
(a) Check for DTCs.
Powertrain > HV Battery > Trouble Codes
Powertrain > Hybrid Control > Trouble Codes
|
Result |
Proceed to |
|---|---|
|
"P0A9B2A, P0AC52A, P0ACA2A, P0AE82A, P0BC22A, P0C332A, P306562 or P306A62" 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 |
(b) Turn the ignition switch off.
| B |
|
GO TO DTC CHART (HYBRID BATTERY SYSTEM) |
| C |
|
|
|
2. |
CHECK DTC |
(a) Check the DTCs that were output when the vehicle was brought to the workshop.
|
Result |
Proceed to |
|---|---|
|
"P0A9B2A, P0AC52A, P0ACA2A or P306562" is also output. |
A |
|
"P0AE82A, P0BC22A, P0C332A or P306A62" is also output. |
B |
| B |
|
|
|
3. |
CHECK HV BATTERY (BATTERY TEMPERATURE SENSOR 0 to 2) |
Click here
| OK |
|
| NG |
|
|
4. |
CHECK HV BATTERY (BATTERY TEMPERATURE SENSOR 3 to 5) |
Click here
| OK |
|
| NG |
|
|
|