DTC    P0A1D-144    Hybrid Powertrain Control Module

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DESCRIPTION

The power management control ECU 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.

DTC No.
INF Code
DTC Detection Condition
Trouble Area
P0A1D
144
ECU internal error
(1 trip detection logic)
Power management control ECU

MONITOR DESCRIPTION

The power management control ECU performs many diagnostic tests to verify proper operation of internal ECU systems. In one of these tests, the power management control ECU performs a self-test. If the power management control ECU detects an internal problem during this self-test, it will conclude that there is an internal malfunction. The power management control ECU will illuminate the MIL and set a DTC.

MONITOR STRATEGY


Related DTCs
P0A1D (INF 144): HV CPU reset malfunction
Required sensors / components
Power management control ECU
Frequency of operation
Continuous
Duration
TMC's intellectual property
MIL operation
1 driving cycle
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


Power management control ECU
DTC P0A1D (INF 144) is not detected

CONFIRMATION DRIVING PATTERN


A218446E12

  1. Connect the Techstream to the DLC3.
  2. Turn the ignition switch to 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 ignition switch off and wait for 30 seconds or more.
  5. Turn the ignition switch to ON (READY) and after a few seconds, turn the ignition switch off. [A]
  6. Repeat [A] 3 times. [B]
  7. Turn the ignition switch to ON (IG) and turn the Techstream on.
  8. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes. [C]
  9. Read the current DTCs.

    HINT:
    1. If a current DTC is output, the system is malfunctioning.
    2. If a current DTC is not output, perform the following procedure.
  10. Check that permanent DTCs are cleared. If no permanent DTC is output, the system is normal.
  11. If the permanent DTCs are not cleared, perform the universal trip, and then check for permanent DTCs again.

INSPECTION PROCEDURE

HINT:
After the repair, clear the DTCs and perform the following procedure to check that DTCs are not output.
  1. Turn the ignition switch to ON (IG) and wait for 30 seconds or more.
1.REPLACE POWER MANAGEMENT CONTROL ECU
(Click here)

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