Lexus ES: Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range (P0ABF2A)
DESCRIPTION
Refer to the description for DTC P0ABF11.
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| DTC No. | Detection Item | DTC Detection Condition | Trouble Area | MIL | Warning Indicate |
|---|---|---|---|---|---|
| P0ABF2A | Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range | The battery current sensor output is stuck even when battery voltage change. (1 trip detection logic) |
| Comes on | Master Warning Light: Comes on |
| DTC No. | Data List |
|---|---|
| P0ABF2A | Hybrid Battery Current for Hybrid Battery Control*1 |
HINT:
*1: The value of "Hybrid Battery Current for Hybrid Battery Control" usually changes by 4 A or more while the vehicle is accelerating and decelerating.
MONITOR DESCRIPTION
If the battery voltage sensor detects a malfunction in the battery current sensor, the hybrid vehicle control ECU will illuminate the MIL and store a DTC.
MONITOR STRATEGY
| Related DTCs | P0AC0 (INF P0ABF2A): Current sensor malfunction |
| Required sensors/components | Battery current 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 voltage sensor | DTC P0AC0 (INF P0ABF2A) 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 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 (IG) and turn the Techstream on.
-
Drive the vehicle on urban roads for approximately 5 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 / Hybrid Control / 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.
PROCEDURE
| 1. | CHECK DTC OUTPUT (HYBRID CONTROL) |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
(d) Check and record any HV system DTCs and freeze frame data.
Powertrain > Hybrid Control > Trouble Codes| Result | Proceed to |
|---|---|
| Only DTC P0ABF2A is output or DTC P0ABF2A and DTCs other than those in the following table are output. | A |
| DTC P0ABF2A and any of the DTCs in the following table are output at the same time. | B |
| Relevant DTC | |
|---|---|
| P0A9563 | High Voltage Fuse Accumulated Load History |
| P0ABF11 | Hybrid/EV Battery Current Sensor "A" Circuit Short to Ground |
| P0ABF15 | Hybrid/EV Battery Current Sensor "A" Circuit Short to Auxiliary Battery or Open |
| P0AFC00 | Hybrid/EV Battery Sensor Module |
| P0AFC96 | Hybrid/EV Battery Sensor Module Component Internal Failure |
| P1CBB12 | Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Auxiliary Battery |
| P1CBB14 | Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Ground or Open |
| P308A12 | Hybrid/EV Battery Voltage Sensor All Circuit Short to Auxiliary Battery |
| P0B3B14, P0B4014, P0B4514, P0B4A14, P0B4F14, P0B5414, P0B5914, P0B5E14, P0B6314, P0B6814, P0B6D14, P0B7214 | Hybrid/EV Battery Voltage Sensor "A - L" Circuit Short to Ground or Open |
(e) Turn the power switch off.
| B | .gif) | GO TO DTC CHART (HYBRID CONTROL SYSTEM) |
|
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| 2. | READ VALUE USING TECHSTREAM |
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
NOTICE:
Do not turn the power switch on (READY).
(c) Enter the following menus: Powertrain / Hybrid Control / Data List / Hybrid Battery Block 1 to 11 Voltage.
NOTICE:
Select "Hybrid Battery Block 1 to 11 Voltage" only. (Do not select any other Data List items.)
Powertrain > Hybrid Control > Data List| Tester Display |
|---|
| Hybrid Battery Block 1 Voltage |
| Hybrid Battery Block 2 Voltage |
| Hybrid Battery Block 3 Voltage |
| Hybrid Battery Block 4 Voltage |
| Hybrid Battery Block 5 Voltage |
| Hybrid Battery Block 6 Voltage |
| Hybrid Battery Block 7 Voltage |
| Hybrid Battery Block 8 Voltage |
| Hybrid Battery Block 9 Voltage |
| Hybrid Battery Block 10 Voltage |
| Hybrid Battery Block 11 Voltage |
(d) Check the voltage of each HV battery block voltage of "Hybrid Battery Block 1 to 11 Voltage" in the Data List with the power switch on (IG).
Specified Condition:
Any "Hybrid Battery Block Voltage" changes by 0.3 V or more, 60 seconds after the power switch is turned on (IG). (The difference between the maximum and minimum voltage is 0.3 V or more.)
| Result | Proceed to |
|---|---|
| The change in voltage of any "Hybrid Battery Block Voltage" is 0.3 V or more. | A |
| Other than above | B |
(e) Turn the power switch off.
| A | | REPLACE BATTERY VOLTAGE SENSOR |
| B | | REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY |
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