HYBRID CONTROL SYSTEM, Diagnostic DTC:P0069-273

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

DESCRIPTION

Atmospheric pressure is detected by the atmospheric pressure sensor in the MG ECU, which is built into the inverter with converter assembly, to perform optimal controls for the driving environment.

A01I5Z7E01
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 exceeds a specified value and the same condition recurs after 3 hours or more when driving in EV drive mode.

(1 trip detection logic)

  • SFI system

  • Inverter with converter assembly

  • Manifold absolute pressure sensor

  • ECM

  • Wire harness or connector
Related Data List
DTC No. Data List
P0069-273

  • MAP

  • Atmosphere Pressure

WIRING DIAGRAM

A01I2GNE08

INSPECTION PROCEDURE

Tech Tips

After the repair, perform the following procedure to confirm the repair.


  1. If the values of Data List items "Atmosphere Pressure" and "MAP" are almost the same with the engine stopped and the power switch on (IG), the vehicle is normal.

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
      No DTCs are output, or DTCs except the ones in the table below are also 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, or DTCs except the ones in the table below are also 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.

      A01I2BS

      Tech Tips


      • Standard atmospheric pressure is approximately 101 kPa (15 psi).

      • For every 100 m (328 ft) increase in altitude, atmospheric pressure drops by approximately 1 kPa (0.1 psi). This varies by weather.

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

      Result
      Result Proceed to
      Except the following. A
      Difference between "MAP" in Data List and normal atmospheric pressure value is 10 kPa (1.5 psi) or more. B
      Difference between "Atmosphere Pressure" in Data List and normal atmospheric pressure value is 10 kPa (1.5 psi) 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

    A

  4. READ VALUE USING TECHSTREAM (MAP)


    1. Connect the Techstream to the DLC3.

    2. Turn the power switch on (IG).

    3. Move the shift lever to P.

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

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

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

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

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

    9. 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).

    10. Turn the power switch off.


    NG

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

    OK

  5. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR

    Click here


    NEXT

  6. 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. Compare the Data List item "MAP" with "Atmosphere Pressure".

      Result
      Result Proceed to
      The difference between "MAP" and "Atmosphere Pressure" is 10 kPa (1.5 psi) or more. A
      The difference between "MAP" and "Atmosphere Pressure" is less than 10 kPa (1.5 psi). B

    5. Turn the power switch off.


    B

    COMPLETED

    A

    REPLACE INVERTER WITH CONVERTER ASSEMBLY

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


    1. A01I5CME04
      Text in Illustration
      *a

      Front view of wire harness connector

      (to Manifold Absolute Pressure Sensor)

      Disconnect the E25 manifold absolute pressure sensor connector.

    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. Reconnect the E25 manifold absolute pressure sensor connector.


    B

    REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR Click here

    A

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


    1. Disconnect E25 manifold absolute pressure sensor connector.

    2. Disconnect E28 ECM connector.

    3. A01I3VIE01
      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. Reconnect E28 ECM connector.

    5. Reconnect the E25 manifold absolute pressure sensor connector.


    NG

    REPAIR OR REPLACE HARNESS OR CONNECTOR

    OK

    REPLACE ECM Click here

  9. REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR

    Click here


    NEXT

  10. CLEAR DTC


    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. Clear DTCs and freeze frame data.

    5. Turn the power switch off.


    NEXT

  11. READ VALUE USING TECHSTREAM (MAP)


    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.

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

      A01I2BS

      Tech Tips


      • Standard atmospheric pressure is approximately 101 kPa (15 psi).

      • For every 100 m (328 ft) increase in altitude, atmospheric pressure drops by approximately 1 kPa (0.1 psi). This varies by weather.

    5. Compare the "MAP" in the Data List with the normal atmospheric value from the table.

    6. Turn the power switch on (READY).

    7. Read the "MAP" value in the Data List with the engine running.

      Result
      Result Proceed to

      Both of the following are not satisfied:


      • Difference between "MAP" in Data List and normal atmospheric pressure value is below 10 kPa with the power switch on (IG).

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

      		 A
      Other than above. B

    8. Turn the power switch off.


    B

    REPLACE ECM Click here

    A

    COMPLETED

  12. REPLACE ECM

    Click here


    NEXT

  13. 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. Compare the Data List item "MAP" with "Atmosphere Pressure".

      Result
      Result Proceed to
      The difference between "MAP" and "Atmosphere Pressure" is 10 kPa (1.5 psi) or more. A
      The difference between "MAP" and "Atmosphere Pressure" is less than 10 kPa (1.5 psi). B

    5. Turn the power switch off.


    B

    COMPLETED

    A

    REPLACE INVERTER WITH CONVERTER ASSEMBLY