HYBRID CONTROL SYSTEM, Diagnostic DTC:P1C2D-587

DTC Code DTC Name
P1C2D-587 Hybrid Battery Voltage / DC/DC Converter Voltage Correlation

DESCRIPTION

For a description of the boost converter.

Click here

The MG ECU uses a voltage sensor (VL) that is built into the boost converter to detect the high voltage before it is boosted. The ECU also uses the battery voltage sensor to detect HV battery voltage (VB).

Tech Tips

Using the GTS, check the Data List values of "Power Resource VB" and "Batt Pack Current Val". If these values are not within the range below, there is a malfunction in the battery voltage sensor circuit.

A01SFP2E01
*1 Power Resource VB to Batt Pack Current Val (20 to 40°C (68 to 104°F))
*2 Power Resource VB (V)
*3 Batt Pack Current Val (A)
DTC No. Detection Item DTC Detection Condition Trouble Area MIL Warning Indicate
P1C2D-587 Hybrid Battery Voltage / DC/DC Converter Voltage Correlation Voltages from HV battery voltage (VB) sensor and boost converter voltage (VL) sensor deviate

  • Inverter with converter assembly

  • Battery voltage sensor

 Comes on

Master Warning Light:

Comes on

PROCEDURE


  1. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Check for DTCs.


      Powertrain > Hybrid Control > Trouble Codes
      Result
      Result Proceed to
      P1C2D-587 only is output. Alternatively, P1C2D-587 and any DTCs except P0B23-129, P0CA3-442 or P0E32-585 are output. A
      P1C2D-587 and P0B23-129 (HV battery voltage circuit malfunction) are output. B
      P1C2D-587 and P0CA3-442 (abnormal voltage execution value) are output. C
      P1C2D-587 and P0E32-585 (boost converter voltage (VL) sensor performance problem) are output. D

    5. Turn the power switch off.


    B

    GO TO DTC CHART (P0B32-129) Click here

    C

    REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here

    D

    GO TO DTC CHART (P0E32-585) Click here

    A

  2. CLEAR DTC


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Read and record the DTCs and freeze frame data.


      Powertrain > Hybrid Control > Trouble Codes

    5. Clear DTCs and freeze frame data.


      Powertrain > Hybrid Control > Clear DTCs

    6. Turn the power switch off.

      Result
      Proceed to
      NEXT

    NEXT

  3. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Connect the GTS to the DLC3. *1

    2. Turn the power switch on (READY). *2

    3. Enter the following menus: Powertrain / Hybrid Control / Data List. *3


      Powertrain > Hybrid Control > Data List
      Tester Display
      Power Resource VB
      VL-Voltage before Boosting
      Batt Pack Current Val

    4. If both "Power Resource VB" and "VL-Voltage before Boosting" are less than 220 V, move the shift lever to D and depress both the accelerator pedal and brake pedal at the same time to raise both values to 220 V or more. *4

    5. Push the P position switch. *5

    6. Set the air conditioning to MAX COOL and turn the headlights on. *6

    7. Confirm that "Batt Pack Current Val" is more than 3 A. *7

    8. Leave the vehicle for 15 seconds with the engine stopped during steps *5, *6 and *7. *8

    9. Enter the following menus: Powertrain / Hybrid Control / DTC. *9

    10. Check for DTCs. *10


      Powertrain > Hybrid Control > Trouble Codes

      Note

      If the low HV battery charge warning light comes on, Move the shift lever to P and start the engine to charge the HV battery. After the engine stops, perform steps *1 through *10 again.

      Result
      Result Proceed to
      No DTCs are output, or DTCs except the following are output. A
      P0B23-129 (HV battery voltage circuit malfunction) is output. B
      P3004-132 (high voltage power supply line problem) is output.
      P0E32-585 (boost converter voltage (VL) sensor performance problem) is output. C
      P3000-388 (discharge inhibition) is output. D

    11. Turn the power switch off.


    B

    REPLACE BATTERY VOLTAGE SENSOR Click here

    C

    REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here

    D

    LEAVE VEHICLE WITH PARK (P) SELECTED, AND CHARGE HV BATTERY BY IDLING UNTIL IDLING STOPS (PERFORM STEPS *1 THROUGH *10)

    A

  4. CHECK DTC OUTPUT (HYBRID CONTROL)


    1. Turn the power switch on (READY). *11

    2. Perform a road test that repeats full acceleration to 60 km/h (37 mph) and then braking to a complete stop three times. *12

    3. Connect the GTS to the DLC3. *13

    4. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes. *14

    5. Check for DTCs. *15


      Powertrain > Hybrid Control > Trouble Codes
      Result
      Result Proceed to
      No DTCs are output, or DTCs except the following are output. A
      P0B23-129 (HV battery voltage circuit malfunction) is output. B
      P3004-132 (high voltage power supply line problem) is output.
      P0E32-585 (boost converter voltage (VL) sensor performance problem) is output. C
      P3000-388 (discharge inhibition) is output. D

    6. Turn the power switch off.


    B

    REPLACE BATTERY VOLTAGE SENSOR Click here

    C

    REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here

    D

    LEAVE VEHICLE WITH PARK (P) SELECTED, AND CHARGE HV BATTERY BY IDLING UNTIL IDLING STOPS (PERFORM STEPS *11 THROUGH *15)

    A

  5. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (READY).

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


      Powertrain > Hybrid Control > Data List
      Tester Display
      Power Resource VB
      VL-Voltage before Boosting
      VH-Voltage after Boosting

    4. Select "Power Resource VB", "VL-Voltage before Boosting" and "VH-Voltage after Boosting" in the Data List.

    5. If both "Power Resource VB" and "VL-Voltage before Boosting" are less than 220 V, move the shift lever to D and depress both the accelerator pedal and brake pedal at the same time to raise both values to 220 V or more.

    6. Turn the engine off, push the P position switch, and read the Data List with the vehicle is stationary.

      Result
      Result Proceed to
      Both of the following are not satisfied. A

      Both of the following are satisfied:


      • Difference between "Power Resource VB" and "VH-Voltage after Boosting" is less than 5 V.

      • Difference between "VL-Voltage before Boosting" and "VH-Voltage after Boosting" is more than 35 V.

      		 B

      Both of the following are satisfied:


      • Difference between "VH-Voltage after Boosting" and "VL-Voltage before Boosting" is less than 5 V.

      • Difference between "Power Resource VB" and "VH-Voltage after Boosting" is more than 15 V.

      		 C

    7. Turn the power switch off.


    B

    REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here

    C

    REPLACE BATTERY VOLTAGE SENSOR Click here

    A

  6. CHECK FREEZE FRAME DATA (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Read the freeze frame data of DTC P0A94-587.

      Result
      Result Proceed to
      Both of the following are satisfied or both of the following are not satisfied. A
      "Power Resource VB" is less than 168 V or more than 280 V. B
      "VL-Voltage before Boosting" is less than 168 V or more than 280 V. C

    5. Turn the power switch off.


    B

    REPLACE BATTERY VOLTAGE SENSOR Click here

    C

    REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here

    A

  7. CHECK FREEZE FRAME DATA (HYBRID CONTROL)


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (IG).

    3. Enter the following menus: Powertrain / Hybrid Control / Trouble Codes.

    4. Read the freeze frame data of DTC P0A94-587.

      Tech Tips

      In the freeze frame data, read the "Power Resource VB" and all of the "Battery Block Vol".

      Result
      Result Proceed to
      Freeze frame data is not stored. A

      Both of the following are satisfied:


      • Sum of all "Battery Block Vol" is more than ("Power Resource VB" - 40 V)

      • Sum of all "Battery Block Vol" is less than ("Power Resource VB" + 25 V)

      		 B
      Neither A nor B is satisfied. C

    5. Turn the power switch off.


    B

    REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here

    C

    REPLACE BATTERY VOLTAGE SENSOR Click here

    A

  8. READ VALUE USING GTS


    1. Connect the GTS to the DLC3.

    2. Turn the power switch on (READY).

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


      Powertrain > Hybrid Control > Data List
      Tester Display
      VL-Voltage before Boosting
      Battery Block Vol -V01
      Battery Block Vol -V02
      Battery Block Vol -V03
      Battery Block Vol -V04
      Battery Block Vol -V05
      Battery Block Vol -V06
      Battery Block Vol -V07
      Battery Block Vol -V08
      Battery Block Vol -V09
      Battery Block Vol -V10
      Battery Block Vol -V11
      Battery Block Vol -V12
      Battery Block Vol -V13
      Battery Block Vol -V14

    4. If both "Battery Block Vol" and "VL-Voltage before Boosting" are less than 220 V, move the shift lever to D and depress both the accelerator pedal and brake pedal at the same time to raise both values to 220 V or more.

    5. Turn the engine off, push the P position switch, and read the "Power Resource VB" and all of the "Battery Block Vol", with the vehicle is stationary.

      Result
      Result Proceed to

      Both of the following are satisfied:


      • Sum of all "Battery Block Vol" is more than ("Power Resource VB" -40 V)

      • Sum of all "Battery Block Vol" is less than ("Power Resource VB" +25 V)

      		 A
      The preceding condition is not satisfied. B

    6. Turn the power switch off.


    A

    REFER TO REPLACE INVERTER WITH CONVERTER ASSEMBLY PARTS Click here

    B

    REPLACE BATTERY VOLTAGE SENSOR Click here