DTC P0ABF-2A: Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range [09/2023 - ]: Procedure

Pre-procedure1

• None.

• Check and record any HV system DTCs and Freeze Frame Data.

  Powertrain > Hybrid Control > Trouble Codes 

  Result

  Result	Proceed to
  "Only DTC P0ABF-2A is output" or "DTC P0ABF-2A and DTCs other than those in the following table are output".	A
  DTC P0ABF-2A and any of the DTCs in the following table are output at the same time.	B

  Relevant DTC
  P0A95-63	High Voltage Fuse Accumulated Load History
  P0ABF-11	Hybrid/EV Battery Current Sensor "A" Circuit Short to Ground
  P0ABF-15	Hybrid/EV Battery Current Sensor "A" Circuit Short to Auxiliary Battery or Open
  P0AFC-00	Hybrid/EV Battery Sensor Module
  P0AFC-96	Hybrid/EV Battery Sensor Module Component Internal Failure
  P1CBB-12	Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Auxiliary Battery
  P1CBB-14	Hybrid/EV Battery Current Sensor Power Supply Circuit Short to Ground or Open
  P308A-12	Hybrid/EV Battery Voltage Sensor All Circuit Short to Auxiliary Battery
  P0B3B-14, P0B40-14, P0B45-14, P0B4A-14, P0B4F-14, P0B54-14, P0B59-14, P0B5E-14, P0B63-14, P0B68-14, P0B6D-14	Hybrid/EV Battery Voltage Sensor "A - K" Circuit Short to Ground or Open

Post-procedure1

• Turn the ignition switch off.

Result: 

B 

GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [09/2023 - ] 

Result: 

A 

See step  2

Pre-procedure1

• Turn the ignition switch to ON.
  NOTE:

  Do not turn the ignition switch to ON (READY).

• Check the voltage of each HV battery block voltage of "Hybrid/EV Battery Block 1 to 10 Voltage" in the Data List with the ignition switch ON.
  NOTE:

  Select "Hybrid/EV Battery Block 1 to 10 Voltage" only. (Do not select any other Data List items.)

  Powertrain > Hybrid Control > Data List 

  Tester Display
  Hybrid/EV Battery Block 1 Voltage
  Hybrid/EV Battery Block 2 Voltage
  Hybrid/EV Battery Block 3 Voltage
  Hybrid/EV Battery Block 4 Voltage
  Hybrid/EV Battery Block 5 Voltage
  Hybrid/EV Battery Block 6 Voltage
  Hybrid/EV Battery Block 7 Voltage
  Hybrid/EV Battery Block 8 Voltage
  Hybrid/EV Battery Block 9 Voltage
  Hybrid/EV Battery Block 10 Voltage

  Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

  Specified Condition

  Any "Hybrid/EV Battery Block Voltage" changes by 0.3 V or more, 60 seconds after the ignition switch is turned to ON. (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/EV Battery Block Voltage" is 0.3 V or more.	A
  Other than above	B

Post-procedure1

• Turn the ignition switch off.

Result: 

A 

REPLACE BATTERY VOLTAGE SENSOR. Refer to  REMOVAL [09/2023 - ] 

Result: 

B 

REPLACE NO. 1 TRACTION BATTERY DEVICE BOX. Refer to  REMOVAL [09/2023 - ]