Lexus ES manuals

Lexus ES: Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range (P0ABF2A)

DESCRIPTION

Refer to the description for DTC P0ABF11.

Click here

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)

  • Battery voltage sensor
  • HV battery junction block assembly

Comes on

Master Warning Light:

Comes on

Related Data List

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.

    Click here

  • When clearing the permanent DTCs, refer to the "CLEAR PERMANENT DTC" procedure.

    Click here

  1. Connect the Techstream to the DLC3.
  2. Turn the power switch on (IG) and turn the Techstream on.
  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).
  4. Turn the power switch off and wait for 2 minutes or more.
  5. Turn the power switch on (IG) and turn the Techstream on.
  6. 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.

  7. Enter the following menus: Powertrain / Hybrid Control / Utility / All Readiness.
  8. 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

GO TO DTC CHART (HYBRID CONTROL SYSTEM)

A

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

READ NEXT:

 Hybrid/EV Battery Positive Contactor Circuit Short to Ground (P0AD911)

DESCRIPTION Refer to the description for DTC P0AE411. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P0AD911 Hybrid/EV Battery Positiv

 Hybrid/EV Battery Positive Contactor Circuit Short to Auxiliary Battery or Open (P0AD915)

DESCRIPTION Refer to the description for DTC P0AE411. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P0AD915 Hybrid/EV Battery Positiv

 Hybrid/EV Battery Negative Contactor Circuit Short to Ground (P0ADD11)

DESCRIPTION Refer to the description for DTC P0AE411. Click here DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate P0ADD11 Hybrid/EV Battery Negativ

SEE MORE:

 Removal

REMOVAL PROCEDURE 1. REMOVE FRONT WHEEL RH Click here 2. REMOVE FRONT FENDER APRON SEAL RH Click here 3. REMOVE V-BANK COVER SUB-ASSEMBLY Click here 4. REMOVE CAMSHAFT TIMING OIL CONTROL SOLENOID ASSEMBLY (for Intake Side of Bank 1) Click here 5. SET NO. 1 CYLINDER TO TDC/COMPRESSION

 Components

COMPONENTS ILLUSTRATION *1 COURTESY LIGHT ASSEMBLY *2 REAR DOOR ILLUMINATION LIGHT (REAR DOOR OUTSIDE HANDLE ASSEMBLY) *3 REAR DOOR SERVICE HOLE COVER *4 REAR DOOR TRIM BOARD SUB-ASSEMBLY *5 REAR DOOR TRIM UPPER PAD *6 REAR POWER WINDOW REGULATOR SWITCH ASSEMBLY WITH RE

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