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.

A01NHERE01
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

INSPECTION PROCEDURE

PROCEDURE


  1. CHECK DTC OUTPUT (ENGINE CONTROL SYSTEM)


    1. Connect the intelligent tester 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 / Hybrid Control / 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

      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 Click here

    A

  2. CHECK DTC OUTPUT (HV)


    1. Connect the intelligent tester 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 HV CPU Power Relay Sense Circuit Intermittent No Continuity
      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 Click here

    A

  3. READ VALUE USING INTELLIGENT TESTER (MAP, ATMOSPHERE PRESSURE)


    1. Connect the intelligent tester 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.

      A01NHNI

    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

    Click here

    C

    REPLACE INVERTER WITH CONVERTER ASSEMBLY

    A

  4. READ VALUE USING INTELLIGENT TESTER (MAP)


    1. Move the shift lever to the P position.

    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

    Click here

    OK

    REPLACE INVERTER WITH CONVERTER ASSEMBLY

  5. CHECK TERMINAL VOLTAGE (MANIFOLD ABSOLUTE PRESSURE SENSOR)

    A01NEBKE04
    Text in Illustration
    *1

    Front view of wire harness connector

    (to Manifold Absolute Pressure Sensor)

    1. Disconnect the manifold absolute pressure sensor connector.

    2. Turn the power switch on (IG).

    3. Measure the voltage between the terminals of the manifold absolute pressure sensor connector.

      Standard Voltage
      Tester Connection Switch Condition Specified Condition
      D52-3 (VC) - D52-2 (E2) Power switch on (IG) 4.5 to 5.5 V
      D52-1 (PIM) - D52-2 (E2) Power switch on (IG) 4.0 to 5.0 V

    4. Reconnect the manifold absolute pressure sensor connector.


    NG

    Click here

    OK

  6. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR


    1. Replace manifold absolute pressure sensor Click here.


    NEXT

  7. CHECK WHETHER DTC OUTPUT RECURS (HV)


    1. Connect the intelligent tester 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
      DTC P0069-273 is not output. A
      DTC P0069-273 is output again. B

    5. Turn the power switch off.


    B

    REPLACE ECM Click here

    A

    END

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


    1. Disconnect the manifold absolute pressure sensor connector.

      A01NCT3E03

    2. Disconnect the ECM connector.

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

      Standard Resistance (Check for Open)
      Tester Connection Condition Specified Condition
      D52-3 (VC) - D1-88 (VPIM) Always Below 1 Ω
      D52-2 (E2) - D1-87 (EPIM) Always Below 1 Ω
      D52-1 (PIM) - D1-89 (PIM) Always Below 1 Ω
      Standard Resistance (Check for Short)
      Tester Connection Condition Specified Condition
      D52-3 (VC) or D1-88 (VPIM) - Body ground Always 10 kΩ or higher
      D52-1 (PIM) or D1-89 (PIM) - Body ground Always 10 kΩ or higher
      Text in Illustration
      *1

      Front view of wire harness connector

      (to Manifold Absolute Pressure Sensor)

      		 *2

      Front view of wire harness connector

      (to ECM)

    4. Reconnect the manifold absolute pressure sensor connector.

    5. Reconnect the ECM connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM Click here