Toyota Corolla Cross: Hybrid/EV Battery Temperature Sensor "A" Voltage Out of Range (P0A9B1C,P0AC51C,P0ACA1C,P0AE81C,P0BC21C,P0C331C)
DESCRIPTION
Refer to the description for DTC P0A9B11.
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DTC No. | Detection Item |
DTC Detection Condition |
Trouble Area | MIL |
Warning Indicate | Note |
|---|---|---|---|---|---|---|
|
P0A9B1C | Hybrid/EV Battery Temperature Sensor "A" Voltage Out of Range |
The performance of battery temperature sensor 0 is abnormal; the difference in output between it and other battery temperature sensors is excessively large. |
| Comes on |
Master warning: Comes on |
SAE Code: P0A9C |
|
P0AC51C | Hybrid/EV Battery Temperature Sensor "B" Voltage Out of Range |
The performance of battery temperature sensor 1 is abnormal; the difference in output between it and other battery temperature sensors is excessively large. |
| Comes on |
Master warning: Comes on |
SAE Code: P0AC6 |
|
P0ACA1C | Hybrid/EV Battery Temperature Sensor "C" Voltage Out of Range |
The performance of battery temperature sensor 2 is abnormal; the difference in output between it and other battery temperature sensors is excessively large. |
| Comes on |
Master warning: Comes on |
SAE Code: P0ACB |
|
P0AE81C | Hybrid/EV Battery Temperature Sensor "D" Voltage Out of Range |
The performance of battery temperature sensor 3 is abnormal; the difference in output between it and other battery temperature sensors is excessively large. |
| Comes on |
Master warning: Comes on |
SAE Code: P0AE9 |
|
P0BC21C | Hybrid/EV Battery Temperature Sensor "E" Voltage Out of Range |
The performance of battery temperature sensor 4 is abnormal; the difference in output between it and other battery temperature sensors is excessively large. |
| Comes on |
Master warning: Comes on |
SAE Code: P0BC3 |
|
P0C331C | Hybrid/EV Battery Temperature Sensor "F" Voltage Out of Range |
The performance of battery temperature sensor 5 is abnormal; the difference in output between it and other battery temperature sensors is excessively large. |
| Comes on |
Master warning: Comes on |
SAE Code: P0C34 |
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 P0A9B1C), P0AC6 (INF P0AC51C), P0ACB (INF P0ACA1C), P0AE9 (INF P0AE81C), P0BC3 (INF P0BC21C), P0C34 (INF P0C331C): Battery temperature sensor malfunction (stuck) |
|
Required sensors/components | Battery temperature sensor |
|
Frequency of operation | Continuous |
|
Duration | TMC's intellectual property |
|
MIL operation | 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 P0A9C (INF P0A9B1C) is not detected DTC P0AC6 (INF P0AC51C) is not detected DTC P0ACB (INF P0ACA1C) is not detected DTC P0AE9 (INF P0AE81C) is not detected DTC P0BC3 (INF P0BC21C) is not detected DTC P0C34 (INF P0C331C) 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.
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- When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.
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- 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.[*1]
HINT:
[*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.
WIRING DIAGRAM
Refer to the wiring diagram for DTC P0A9B11.
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CAUTION / NOTICE / HINT
CAUTION:
Refer to the precautions before inspecting high voltage circuit.
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NOTICE:
- After the ignition switch is turned off, there may be a waiting time before disconnecting the negative (-) auxiliary battery terminal.
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- 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.
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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 |
|---|---|
|
"P0A9B1C, P0AC51C, P0ACA1C, P0AE81C, P0BC21C or P0C331C" 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 | .gif) | GO TO DTC CHART (HYBRID BATTERY SYSTEM) |
| C | | GO TO DTC CHART (HYBRID CONTROL SYSTEM) |
|
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|
2. | CHECK DTC |
(a) Check the DTCs that were output when the vehicle was brought to the workshop.
|
Result | Proceed to |
|---|---|
|
"P0A9B1C, P0AC51C or P0ACA1C" is also output. |
A |
| "P0AE81C, P0BC21C or P0C331C" is also output. |
B |
| B | | GO TO STEP 4 |
|
|
3. | CHECK HV BATTERY (BATTERY TEMPERATURE SENSOR 0 to 2) |
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| OK | | REPLACE BATTERY ECU ASSEMBLY |
| NG | | REPLACE HV BATTERY |
|
4. | CHECK HV BATTERY (BATTERY TEMPERATURE SENSOR 3 to 5) |
Click here
| OK | | REPLACE BATTERY ECU ASSEMBLY |
| NG | | REPLACE HV BATTERY |
READ NEXT:
Hybrid/EV Battery Temperature Sensor "A" Signal Stuck In Range (P0A9B2A,P0AC52A,P0ACA2A,P0AE82A,P0BC22A,P0C332A,P306562,P306A62)
DESCRIPTION Refer to the description for DTC P0A9B11.
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DTC No. Detection Item
DTC Detection Condition
Trouble Area MIL
Warning Indicate Note
P0A9
Hybrid/EV Battery Air Temperature Sensor "A" Circuit Short to Ground (P0AAC11,P0AAC15)
DESCRIPTION The inlet air temperature sensor (HV battery) is mounted on the HV battery. The resistance of the sensor varies in accordance with changes in the intake air temperature. The characteristic
Hybrid/EV Battery Current Sensor "A" Circuit Short to Ground (P0ABF11,P0ABF15,P0B0E11,P0B0E15,P1CBB12,P1CBB14)
DESCRIPTION A battery current sensor, which is mounted on the positive cable side of each HV battery junction block assembly, detects the current flowing to or from the battery pack. The battery curre
SEE MORE:
Installation
INSTALLATION
CAUTION / NOTICE / HINT
COMPONENTS (INSTALLATION)
Procedure
Part Name Code
1
TRANSMISSION OIL COOLER
33493C
-
-
2
NO. 2 WATER BY-PAS
Electric Parking Brake Switch Signal Compare Failure (C060962)
DESCRIPTION
When the electric parking brake switch is pulled, a lock request
signal is sent from the skid control ECU (brake actuator assembly) to the parking
brake actuator assembly. When the electric parking brake switch is pushed, a release
request signal is sent from the skid control ECU
