DTC P0ABF-123: Hybrid Battery Pack Current Sensor Circuit; DTC P0AC1-123: Hybrid Battery Pack Current Sensor "A" Circuit Low; DTC P0AC2-123: Hybrid Battery Pack Current Sensor "A" Circuit High: Procedure

B → See step   7 

A: Go to next step 

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (NO. 2 BATTERY PACK WIRE) 

OK: Go to next step 

1. Disconnect the cable from the negative (-) battery terminal.
2. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch ON (READY), unless instructed by the repair information because this may cause a malfunction.

3. Remove the battery cover. Refer to REMOVAL .
4. Remove the battery smart unit. Refer to REMOVAL .
   NOTE:

   Do not disconnect the battery smart unit connector.

5. Connect the cable to the negative (-) battery terminal.
6. Turn the ignition switch to ON.
7. Measure the voltage according to the value(s) in the table below.
   Fig 1: Checking Battery Smart Unit (VIB Voltage)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   z18-10 (VIB) - z18-20 (GIB)	Ignition switch ON	4.6 to 5.4 V

   TEXT IN ILLUSTRATION
   
   

   *1	Component with harness connected (Battery Smart Unit)

   NOTE:

   If the ignition switch is turned ON with the service plug grip removed, DTC P0A0D-350 for the interlock switch system will be stored. If this DTC is output, clear the DTC using the Techstream. Refer to DTC CHECK / CLEAR .

NG → See step   6 

OK: Go to next step 

1. Disconnect the cable from the negative (-) battery terminal.
2. Check that the service plug grip is not installed.
   NOTE:

   After removing the service plug grip, do not turn the ignition switch ON (READY), unless instructed by the repair information because this may cause a malfunction.

3. Remove the battery cover. Refer to REMOVAL .
4. Remove the battery smart unit. Refer to REMOVAL .

   HINT: 

   Do not disconnect the battery smart unit connector.

5. Connect the cable to the negative (-) battery terminal.
6. Turn the ignition switch to ON.
7. Measure the voltage according to the value(s) in the table below.
   Fig 2: Checking Battery Smart Unit (IB Voltage)

   Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

   Standard Voltage

   Tester Connection	Switch Condition	Specified Condition
   z18-9 (IB) - z18-20 (GIB)	Ignition switch ON	2.46 to 2.54 V

   TEXT IN ILLUSTRATION
   
   

   *1	Component with harness connected (Battery Smart Unit)

   NOTE:

   If the ignition switch is turned ON with the service plug grip removed, DTC P0A0D-350 for the interlock switch system will be stored. If this DTC is output, clear the DTC using the Techstream. Refer to DTC CHECK / CLEAR .

NG → See step   5 

OK → See step   6