P0AC0-123

HYBRID / BATTERY CONTROL: HYBRID BATTERY SYSTEM: P0AC0-123: Hybrid Battery Pack Current Sensor Circuit Range / Performance
P0AC0-123 - Hybrid Battery Pack Current Sensor Circuit Range / Performance

DESCRIPTION

Refer to the Description for DTC P0ABF-123 P0ABF.





MONITOR DESCRIPTION

If the battery smart unit detects a malfunction in the battery current sensor, the power management control ECU (HV CPU) will illuminate the MIL and set a DTC.

MONITOR STRATEGY





TYPICAL ENABLING CONDITIONS





TYPICAL MALFUNCTION THRESHOLDS





COMPONENT OPERATING RANGE





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.

HINT
- If a permanent DTC is output, the system is malfunctioning.
- If no permanent DTC is output, the system is normal.

INSPECTION PROCEDURE

CAUTION:
- 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.
- After disconnecting the service plug grip, wait for at least 10 minutes before touching any of the high-voltage connectors or terminals.
HINT
At least 10 minutes is required to discharge the high-voltage capacitor inside the inverter with converter assembly.

NOTICE:
After the power switch is turned off, the display and navigation module display (HDD navigation system) records various types of memory and settings. As a result, after turning the power switch off, make sure to wait at least 60 seconds before disconnecting the cable from the negative (-) battery terminal.

PROCEDURE

1. CHECK DTC OUTPUT (HV)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

(d) Read output DTCs Hybrid Battery System.

Result:





(e) Turn the power switch off.

(f) Disconnect the Techstream from the DLC3.

B -- GO TO DTC CHART Hybrid Battery System
A -- Continue to next step.

2. REPLACE HYBRID BATTERY JUNCTION BLOCK

(a) Replace the hybrid battery junction block Components.

NEXT -- Continue to next step.

3. CLEAR DTC (HV)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

(d) Clear the DTCs and freeze frame data Hybrid Battery System.

(e) Perform a road test to charge and discharge the HV battery assembly.

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

(f) Disconnect the Techstream from the DLC3.

NEXT -- Continue to next step.

4. RECONFIRM DTC OUTPUT (HV)

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(c) Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

(d) Read output DTCs Hybrid Battery System.

Result





(e) Disconnect the Techstream from the DLC3.

B -- REPLACE BATTERY SMART UNIT Components

A -- RECOVERY TO NORMAL