P0A1D-144 - Hybrid Powertrain Control Module

HYBRID / BATTERY CONTROL: HYBRID CONTROL SYSTEM: P0A1D-144: Hybrid Powertrain Control Module
P0A1D-144 - Hybrid Powertrain Control Module

DESCRIPTION

The power management control ECU (HV CPU) monitors its internal operation, it will set DTCs and perform fail-safe control when it detects the following malfunctions. If any of the following DTCs are output, replace the power management control ECU (HV CPU).





MONITOR DESCRIPTION

The power management control ECU (HV CPU) performs many diagnostic tests to verify proper operation of internal ECU systems. In one of these tests, the power management control ECU (HV CPU) performs a self-test. If the power management control ECU (HV CPU) detects an internal problem during this self-test, it will conclude that there is an internal malfunction. 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 (READY) and after a few seconds, turn the power switch off. [A]

6. Repeat [A] 3 times. [B]

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

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

9. Check that permanent DTCs are cleared.

10. If the permanent DTCs are not cleared, perform the universal trip, and then check for permanent DTCs again.

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

INSPECTION PROCEDURE

PROCEDURE

1. REPLACE POWER MANAGEMENT CONTROL ECU

(a) Replace the power management control ECU Components.

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