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
|
Related DTCs | P0B13 (INF P0B1362): Current sensor malfunction |
|
Required sensors/components | Battery current sensor |
|
Frequency of operation | Continuous |
|
Duration | TMC's intellectual property |
|
MIL operation | Immediately |
|
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 |
|
Other conditions belong to TMC's intellectual property |
- |
TYPICAL MALFUNCTION THRESHOLDS
|
TMC's intellectual property | - |
COMPONENT OPERATING RANGE
|
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
|
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 |
|
|
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.
|
|
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 |
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On-vehicle Inspection
ON-VEHICLE INSPECTION
PROCEDURE
1. WARNING LIGHT AND INDICATOR LIGHT INITIAL CHECK
(a) When the ignition switch is turned to ON, check that the ABS warning
light, brake system warning light (red indicator), brake system warning light (yellow
indicator), slip indicator light, VSC OFF indicator
