Toyota Corolla Cross: Hybrid/EV Battery Current Sensor "A"/"B" Signal Compare Failure (P0B1362)
DESCRIPTION
Refer to the description for DTC P0ABF11.
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DTC No. | Detection Item |
DTC Detection Condition |
Trouble Area | MIL |
Warning Indicate | Note |
|---|---|---|---|---|---|---|
|
P0B1362 | Hybrid/EV Battery Current Sensor "A"/"B" Signal Compare Failure |
A battery current sensor is malfunctioning.* (1 trip detection logic) |
| Comes on |
Master Warning: Comes on |
SAE Code: P0B13 |
*: The difference in output of the main and sub battery current sensors is large.
MONITOR DESCRIPTION
If the battery ECU assembly detects a malfunction in a battery current sensor, the battery ECU assembly will illuminate the MIL and store a DTC.
MONITOR STRATEGY
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Related DTCs | P0B13 (INF P0B1362): Current sensor malfunction |
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Required sensors/components | Battery current sensor |
|
Frequency of operation | Continuous |
|
Duration | TMC's intellectual property |
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MIL operation | Immediately |
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Sequence of operation | None |
TYPICAL ENABLING CONDITIONS
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The monitor will run whenever the following DTCs are not stored |
TMC's intellectual property |
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Other conditions belong to TMC's intellectual property |
- |
TYPICAL MALFUNCTION THRESHOLDS
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TMC's intellectual property | - |
COMPONENT OPERATING RANGE
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Battery ECU assembly | DTC P0B13 (INF P0B1362) 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.
- Drive the vehicle on urban roads for approximately 10 minutes.[*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.
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
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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 |
|---|---|
|
"P0B1362" 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 HARNESS AND CONNECTOR (BATTERY ECU ASSEMBLY - HV BATTERY JUNCTION BLOCK ASSEMBLY) |
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| NG | | REPAIR OR REPLACE HARNESS OR CONNECTOR |
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3. | REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY |
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4. | CLEAR DTC (HV BATTERY) |
(a) Clear the DTCs and freeze frame data.
Powertrain > HV Battery > Clear DTCs(b) Drive the vehicle on urban roads for approximately 10 minutes.
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5. | CHECK DTC OUTPUT (HV BATTERY) |
(a) Check for DTCs.
Powertrain > HV Battery > Trouble Codes|
Result | Proceed to |
|---|---|
|
DTCs are not output. |
A |
| P0B1362 is also output. |
B |
(b) Turn the ignition switch off.
| A | | END |
| B | | REPLACE BATTERY ECU ASSEMBLY |
