HYBRID BATTERY SYSTEM, Diagnostic DTC:P0AC0-123

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

DESCRIPTION

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

DTC No. INF Code DTC Detection Condition Trouble Area
P0AC0 123 When the battery current sensor is abnormal (1 or 2 trip detection)

  • Hybrid battery junction block assembly

  • Battery smart unit

MONITOR DESCRIPTION

If the battery smart unit detects a malfunction in the battery current sensor, the power management control ECU will illuminate the MIL and stores DTC.

MONITOR STRATEGY

Related DTCs P0AC0 (INF 123): Current sensor malfunction(gain or offset)
Required sensors / components Battery current sensor
Frequency of operation Continuous
Duration TMC's intellectual property
MIL operation TMC's intellectual property
Sequence of operation None

TYPICAL ENABLING CONDITIONS

The monitor will run whenever the following DTCs are not present TMC's intellectual property
Other conditions belong to TMC's intellectual property -

TYPICAL MALFUNCTION THRESHOLDS

TMC's intellectual property -

COMPONENT OPERATING RANGE

Battery smart unit P0AC0 (INF 123) is not detected

CONFIRMATION DRIVING PATTERN


  1. Connect the Techstream to the DLC3.

  2. Turn the power switch on (IG) and turn the Techstream on.

  3. Clear the DTCs (even if no DTCs are stored, perform the clear DTC procedure).

  4. Turn the power switch off.

  5. Turn the power switch on (IG), wait for 10 seconds or more and then turn the power switch off.

  6. Turn the power switch on (READY) and turn the Techstream on.

  7. Perform a universal trip.

  8. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

  9. Check that permanent DTCs are cleared.

    Tech Tips


    • If a permanent DTC is output, the system is malfunctioning.

    • If no permanent DTC is output, the system is normal.

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC OUTPUT (HYBRID CONTROL)


    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, INF codes and freeze frame data.

    5. Read output DTCs Click here.

      Result
      Result Proceed to
      Only DTC P0AC0-123 is output or DTC P0AC0-123 and DTCs other than those in the following table are output. A
      Any of the DTCs in the following table are output at the same time. B
      Relevant DTC
      P0A95-123 High Voltage Fuse
      P0ABF-123 Hybrid Battery Pack Current Sensor Circuit
      P0AC1-123 Hybrid Battery Pack Current Sensor Circuit Low
      P0AC2-123 Hybrid Battery Pack Current Sensor Circuit High
      P0AFC-123 Hybrid Battery Pack Sensor Module
      P0B3D-123, P0B42-123, P0B47-123, P0B4C-123, P0B51-123, P0B56-123, P0B5B-123, P0B60-123, P0B65-123, P0B6A-123, P0B6F-123, P0B74-123, P0B79-123, P0B7E-123, P0B83-123, P0B88-123, P0B8D-123, P0B92-123 Hybrid Battery Voltage Sensor "A - R" Circuit Low

    6. Turn the power switch off.

    7. Disconnect the Techstream from the DLC3.


    B

    GO TO DTC CHART (HYBRID BATTERY SYSTEM) Click here

    A

  2. READ VALUE USING TECHSTREAM


    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 / Battery block Vol -V01 to V17.

      Note

      Select "Battery block Vol -V01 to V17" only. (Do not select any other Data List items.)

    4. Check the voltage of each "Battery block Vol" of "Battery block Vol -V01 to V17" in the Data List with the power switch on (IG).

      A01I5UNE01
      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 "Battery block Vol" is 0.3 V or more. A
      Other than above. B

    5. Turn the power switch off.

    6. Disconnect the Techstream from the DLC3.


    B

    REPLACE HYBRID BATTERY JUNCTION BLOCK ASSEMBLY Click here

    A

    REPLACE BATTERY SMART UNIT Click here