DTC    P0AC0-123    Hybrid Battery Pack Current Sensor Circuit Range / Performance

for Preparation Click here


DESCRIPTION

Refer to the Description for DTC P0ABF-123 (Click here).

DTC No.
DTC Detection Condition
Trouble Area
P0AC0-123
When the battery current sensor is abnormal (1 or 2 trip detection)
  1. Hybrid battery junction block assembly
  2. Battery smart unit

INSPECTION PROCEDURE

CAUTION:
  1. Before inspecting the high-voltage system, take safety precautions to prevent electrical shocks, such as wearing insulated gloves and removing the service plug grip. After removing the service plug grip, put it in your pocket to prevent other technicians from accidentally reconnecting it while you are working on the high-voltage system.
  2. After removing the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals. After waiting for 10 minutes, check the voltage at the terminals in the inspection point in the inverter with converter assembly. The voltage should be 0 V before beginning work (Click here).

HINT:
Waiting for at least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

NOTICE:
After turning the power switch off, waiting time may be required before disconnecting the cable from the negative (-) auxiliary battery terminal. Therefore, make sure to read the disconnecting the cable from the negative (-) auxiliary battery terminal notices before proceeding with work (Click here).

1.CHECK DTC OUTPUT (HV)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Enter the following menus: Powertrain / Hybrid Control / DTC.

  1. Check if DTCs are output.

    Result:
    Result
    		Proceed to
    P0AFC-123 is not output.
    		A
    P0AFC-123 is also output.
    		B

  1. Turn the power switch off.



B
GO TO DTC CHART (Click here)
A


2.REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY

  1. Replace the hybrid battery junction block assembly (Click here).


NEXT


3.CLEAR DTC (HV)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Enter the following menus: Powertrain / Hybrid Control / DTC.

  1. Clear the DTCs and freeze frame data (Click here).

  1. Perform a road test to charge and discharge the HV battery.

    HINT:
    2 trip detection logic is used. After the first road test, turn the power switch off and perform a road test again.

  1. Disconnect the intelligent tester from the DLC3.


NEXT


4.RECONFIRM DTC OUTPUT (HV)

  1. Connect the intelligent tester to the DLC3.

  1. Turn the power switch on (IG).

  1. Enter the following menus: Powertrain / Hybrid Control / DTC.

  1. Check if DTCs are output.

    Result:
    Result
    		Proceed to
    DTCs P0AC0-123 is not output.
    		A
    DTCs P0AC0-123 is output.
    		B

  1. Turn the power switch off.



B
REPLACE BATTERY SMART UNIT (Click here)
A

RECOVERY TO NORMAL