DTC P0ABF-2A: Hybrid/EV Battery Current Sensor "A" Signal Stuck In Range [12/2022 - ]: Procedure

Pre-procedure1

1. None

   Procedure1

2. Check for DTCs.

   Powertrain > HV Battery > Trouble Codes 

   Powertrain > Hybrid Control > Trouble Codes 

   Result

   Result	Proceed to
   "P0ABF-2A" 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	P060A-47	Hybrid/EV Battery Energy Control Module Monitoring Processor Watchdog / Safety MCU Failure
   	P060B-49	Hybrid/EV Battery Energy Control Module A/D Processing Internal Electronic Failure
   	P0606-87	Hybrid/EV Battery Energy Control Module Processor to Monitoring Processor Missing Message
   	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
   	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
   Hybrid control system	P0A1F-94	Hybrid/EV Battery Energy Control Module Unexpected Operation

   Post-procedure1

3. Turn the ignition switch off.

Result: 

B 

GO TO DTC CHART (HYBRID BATTERY SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2022 - ] 

Result: 

C 

GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [12/2022 - ] 

Result: 

A 

See step  2

1. Turn the ignition switch to ON.
   NOTE:

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

2. Check the voltage of each "Battery Cell Vol" of "Hybrid/EV Battery Cell 1 to 60 Voltage" in the Data List with the ignition switch ON.

   Powertrain > HV Battery > Data List 

   Tester Display
   Hybrid/EV Battery Cell 1 Voltage
   Hybrid/EV Battery Cell 2 Voltage
   Hybrid/EV Battery Cell 3 Voltage
   Hybrid/EV Battery Cell 4 Voltage
   Hybrid/EV Battery Cell 5 Voltage
   Hybrid/EV Battery Cell 6 Voltage
   Hybrid/EV Battery Cell 7 Voltage
   Hybrid/EV Battery Cell 8 Voltage
   Hybrid/EV Battery Cell 9 Voltage
   Hybrid/EV Battery Cell 10 Voltage
   Hybrid/EV Battery Cell 11 Voltage
   Hybrid/EV Battery Cell 12 Voltage
   Hybrid/EV Battery Cell 13 Voltage
   Hybrid/EV Battery Cell 14 Voltage
   Hybrid/EV Battery Cell 15 Voltage
   Hybrid/EV Battery Cell 16 Voltage
   Hybrid/EV Battery Cell 17 Voltage
   Hybrid/EV Battery Cell 18 Voltage
   Hybrid/EV Battery Cell 19 Voltage
   Hybrid/EV Battery Cell 20 Voltage
   Hybrid/EV Battery Cell 21 Voltage
   Hybrid/EV Battery Cell 22 Voltage
   Hybrid/EV Battery Cell 23 Voltage
   Hybrid/EV Battery Cell 24 Voltage
   Hybrid/EV Battery Cell 25 Voltage
   Hybrid/EV Battery Cell 26 Voltage
   Hybrid/EV Battery Cell 27 Voltage
   Hybrid/EV Battery Cell 28 Voltage
   Hybrid/EV Battery Cell 29 Voltage
   Hybrid/EV Battery Cell 30 Voltage
   Hybrid/EV Battery Cell 31 Voltage
   Hybrid/EV Battery Cell 32 Voltage
   Hybrid/EV Battery Cell 33 Voltage
   Hybrid/EV Battery Cell 34 Voltage
   Hybrid/EV Battery Cell 35 Voltage
   Hybrid/EV Battery Cell 36 Voltage
   Hybrid/EV Battery Cell 37 Voltage
   Hybrid/EV Battery Cell 38 Voltage
   Hybrid/EV Battery Cell 39 Voltage
   Hybrid/EV Battery Cell 40 Voltage
   Hybrid/EV Battery Cell 41 Voltage
   Hybrid/EV Battery Cell 42 Voltage
   Hybrid/EV Battery Cell 43 Voltage
   Hybrid/EV Battery Cell 44 Voltage
   Hybrid/EV Battery Cell 45 Voltage
   Hybrid/EV Battery Cell 46 Voltage
   Hybrid/EV Battery Cell 47 Voltage
   Hybrid/EV Battery Cell 48 Voltage
   Hybrid/EV Battery Cell 49 Voltage
   Hybrid/EV Battery Cell 50 Voltage
   Hybrid/EV Battery Cell 51 Voltage
   Hybrid/EV Battery Cell 52 Voltage
   Hybrid/EV Battery Cell 53 Voltage
   Hybrid/EV Battery Cell 54 Voltage
   Hybrid/EV Battery Cell 55 Voltage
   Hybrid/EV Battery Cell 56 Voltage
   Hybrid/EV Battery Cell 57 Voltage
   Hybrid/EV Battery Cell 58 Voltage
   Hybrid/EV Battery Cell 59 Voltage
   Hybrid/EV Battery Cell 60 Voltage

   NOTE:

   Select "Hybrid/EV Battery Cell 1 to 60 Voltage" only. (Do not select any other Data List items.)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Specified Condition

   Any "Hybrid/EV Battery Cell Voltage" changes by 0.05 V or more, 60 seconds after the ignition switch is turned to ON. (The difference between the maximum and minimum voltage is 0.05 V or more.)

   Result

   Result	Proceed to
   The change in voltage of any "Hybrid/EV Battery Cell Voltage" is 0.05 V or more.	A
   Other than above	B

3. Turn the ignition switch off.

Result: 

A 

REPLACE BATTERY ECU ASSEMBLY. Refer to  REMOVAL [12/2022 - ] 

Result: 

B 

REPLACE NO. 1 TRACTION BATTERY DEVICE BOX. Refer to  REMOVAL [12/2022 - ]