HYBRID CONTROL SYSTEM, Diagnostic DTC:P0069-273

DTC Code DTC Name
P0069-273 Manifold Absolute Pressure - Barometric Pressure Correlation

DESCRIPTION

The atmospheric pressure sensor mounted on the MG ECU circuit board detects the atmospheric pressure. This reading is used to perform system control that considers vehicle usage conditions.

A01HVMKE01
DTC No. INF Code DTC Detection Condition Trouble Area
P0069 273 Difference between the atmospheric pressure value of the atmospheric pressure sensor in the inverter with converter assembly and the manifold absolute pressure sensor (for EGR control) exceeds a specified value. The same condition recurs within 3 hours when driving in EV mode.

  • Inverter with converter assembly

  • Manifold absolute pressure sensor

  • ECM

  • Wire harness or connector

WIRING DIAGRAM

A01HTVZE03

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC OUTPUT (ENGINE AND ECT)


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (READY).

    3. Fully depress the accelerator pedal for 5 seconds to start the engine and keep it running.

    4. Enter the following menus: Powertrain / Engine and ECT / Trouble Codes.

    5. Check if DTCs are output.

      Result
      Result Proceed to
      DTCs other than those listed in the following table are output. A
      Any of the following DTCs are also output. B
      DTC No. Relevant Diagnosis
      P0107 Manifold Absolute Pressure / Barometric Pressure Circuit Low Input
      P0108 Manifold Absolute Pressure / Barometric Pressure Circuit High Input
      P106A Evaporative Emission System Pressure Sensor - Manifold Absolute Pressure Correlation

      Tech Tips

      P0069-273 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output.

    6. Turn the power switch off.


    B

    GO TO DTC CHART (SFI SYSTEM) Click here

    A

  2. 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 if DTCs are output.

      Result
      Result Proceed to
      P0069-273 only is output. A
      Any of the following DTCs are also output. B
      DTC No. Relevant Diagnosis
      P0A1A-151, 155, 156, 658, 659 Generator Control Module
      P0A1B-193, 512, 661, 786 Drive Motor "A" Control Module
      P0A1D-148 Hybrid Powertrain Control Module
      P2228-268 Barometric Pressure Sensor "A" Circuit Low
      P2229-269 Barometric Pressure Sensor "A" Circuit High
      P2511-149 ECM/PCM Power Relay Sensor Circuit Intermittent
      P324E-788 MG-ECU Power Relay Intermittent Circuit
      U0100-211, 530 Lost Communication with ECM/PCM "A"
      U0110 (all INF codes)*1 Lost Communication with Drive Motor Control Module "A"

      Tech Tips


      • *1: If any INF codes are output for this DTC, refer to the corresponding diagnostic procedure.

      • P0069-273 may be output due to a malfunction which causes the DTCs in the table above to be output. In this case, first troubleshoot the output DTCs in the table above. Then, perform a reproduction test to check that no DTCs are output.

    5. Turn the power switch off.


    B

    GO TO DTC CHART (HYBRID CONTROL SYSTEM) Click here

    A

  3. READ VALUE USING TECHSTREAM (MAP, ATMOSPHERE PRESSURE)


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Data List / MAP, Atmosphere Pressure.

    4. Using the table, read the normal atmospheric pressure value for the applicable altitude.

      A01HTH1

    5. Compare the MAP and Atmosphere Pressure values in the Data List with the normal atmospheric value from the table.

      Result
      Result Proceed to
      Other than the following. A
      Difference between MAP in Data List and normal atmospheric pressure value is 10 kPa or more. B
      Difference between Atmosphere Pressure in Data List and normal atmospheric pressure value is 10 kPa or more. C

    6. Turn the power switch off.


    B

    CHECK TERMINAL VOLTAGE (POWER SOURCE OF MANIFOLD ABSOLUTE PRESSURE SENSOR) Click here

    C

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

    A

  4. READ VALUE USING TECHSTREAM (MAP)


    1. Move the shift lever to P.

    2. Enter the following menus: Powertrain / Hybrid Control / Data List / MAP

    3. Read the MAP value in the Data List with the engine stopped.

    4. While depressing the brake pedal, turn the power switch on (READY).

    5. With the READY indicator light illuminated, fully depress the accelerator pedal.

    6. Read the MAP value in the Data List with the engine running.

    7. Compare the MAP value noted with the engine stopped and the MAP value noted with the engine running.

      OK
      The MAP value changes (pressure decreases when the engine is started).

    8. Turn the power switch off.


    NG

    CHECK TERMINAL VOLTAGE (POWER SOURCE OF MANIFOLD ABSOLUTE PRESSURE SENSOR) Click here

    OK

    REPLACE INVERTER WITH CONVERTER ASSEMBLY Click here

  5. CHECK TERMINAL VOLTAGE (POWER SOURCE OF MANIFOLD ABSOLUTE PRESSURE SENSOR)


    1. A01HT4PE04
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Manifold Absolute Pressure Sensor)

      Disconnect connector E25 from the manifold absolute pressure sensor.

    2. Turn the power switch on (IG).

    3. Measure the voltage according to the value(s) in the table below.

      Standard Voltage
      Tester Connection Condition Specified Condition
      E25-3 (VC) - E25-1 (E2) Power switch on (IG) 4.75 to 5.25 V
      E25-2 (PIM) - E25-1 (E2) Power switch on (IG) 3.0 to 5.0 V
      Result
      Result Proceed to
      NG A
      OK B

    4. Turn the power switch off.

    5. Connect the manifold absolute pressure sensor connector.


    B

    REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR Click here

    A

  6. CHECK HARNESS AND CONNECTOR (MANIFOLD ABSOLUTE PRESSURE SENSOR - ECM)


    1. Disconnect connector E25 from the manifold absolute pressure sensor.

    2. Disconnect connector E28 from the ECM.

    3. A01HVNLE01
      Text in Illustration
      *a

      Front view of wire harness connector

      (to ECM)
      *b

      Front view of wire harness connector

      (to Manifold Absolute Pressure Sensor)

      Measure the resistance according to the value(s) in the table below.

      Standard Resistance
      Tester Connection Condition Specified Condition
      E25-3 (VC) - E28-78 (VCPM) Always Below 1 Ω
      E25-1 (E2) - E28-80 (EPIM) Always Below 1 Ω
      E25-2 (PIM) - E28-79 (PIM) Always Below 1 Ω
      E25-3 (VC) or E28-78 (VCPM) - Body ground Always 10 kΩ or higher
      E25-2 (PIM) or E28-79 (PIM) - Body ground Always 10 kΩ or higher

    4. Connect the ECM connector.

    5. Connect the manifold absolute pressure sensor connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM Click here

  7. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR

    Click here


    NEXT

  8. 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 if DTCs are output.

      Result
      Result Proceed to
      P0069-273 is not output. A
      P0069-273 is output again. B

    5. Turn the power switch off.


    B

    REPLACE ECM Click here

    A

    COMPLETED