DTC P0ABF-2A: Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range [10/2018 - ]: Procedure

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.
4. Check and record any HV system DTCs and freeze frame data.

   Powertrain > Hybrid Control > Trouble Codes 

   Result

   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	Hybrid/EV Battery Voltage Sensor "A - K" Circuit Short to Ground or Open

5. Turn the power switch off.

Result: 

B 

GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [10/2018 - ] 

Result: 

A 

See step  2

1. Connect the Techstream to the DLC3.
2. Turn the power switch on (IG).
   NOTE:

   Do not turn the power switch on (READY).

3. Enter the following menus: Powertrain / Hybrid Control / Data List / Hybrid Battery Block 1 to 10 Voltage.
   NOTE:

   Select "Hybrid Battery Block 1 to 10 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

4. Check the voltage of each "Battery Block Vol" of "Hybrid Battery Block 1 to 10 Voltage" in the Data List with the power switch on (IG).

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Specified Condition

   Any "Battery Block Vol" 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

   Result	Proceed to
   The change in voltage of any "Hybrid Battery Block Voltage" is 0.3 V or more.	A
   Other than above	B

5. Turn the power switch off.

Result: 

A 

REPLACE BATTERY VOLTAGE SENSOR. Refer to  REMOVAL [10/2018 - 07/2022]  Refer to  REMOVAL [07/2022 - ] 

Result: 

B 

REPLACE HV BATTERY JUNCTION BLOCK ASSEMBLY. Refer to  REMOVAL [10/2018 - 07/2022]  Refer to  REMOVAL [07/2022 - ]