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Home >> Subaru >> 2020 >> Crosstrek Base, Automatic CVT Trans >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 16 (P-HEV Hybrid Powertrain Control System (Diagnostics) (2 Of 2)) >> Diagnostic Procedure with Diagnostic Trouble Code (DTC) >> DTC P1CDA-00: Hybrid/EV Powertrain Control Module Processor And Monitoring Processor Charging Permission Signal Stuck Off >> Notes

DTC P1CDA-00: Hybrid/EV Powertrain Control Module Processor And Monitoring Processor Charging Permission Signal Stuck Off: Notes

WARNING: This page is about a different variant/trim than selected.

1. - 

Outline of diagnosis: 

Even though the charger gate permission signal was output from Hybrid vehicle control ECU assembly, the answer-back signal from Electric vehicle charger assembly was not detected

(1 trip detection logic)

Trouble symptom: 

Plug-in charging suspended

Wiring diagram: 

Hybrid system Ref. to WIRING SYSTEM (CROSSTREK MODEL (HEV))>HYBRID ELECTRIC VEHICLE SYSTEM>WIRING DIAGRAM .

G13238030Courtesy of SUBARU OF AMERICA, INC.
CAUTION: Before performing diagnosis, refer to "CAUTION" in "General Description". Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>GENERAL DESCRIPTION>CAUTION .
G13618097Courtesy of SUBARU OF AMERICA, INC.
  1. CHECK DTC  .

    Read the following DTCs using Subaru Select Monitor. Ref. to P-HEV HYBRID POWERTRAIN CONTROL (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) . Ref. to PLUG-IN BATTERY CHARGER (DIAGNOSTICS)>DIAGNOSTIC TROUBLE CODE (DTC) .

    • P-HEV Hybrid Powertrain Control
    • Plug-in Battery Charger
    NOTE:
    Malfunction contents System Related DTC
    Microcomputer malfunction P-HEV Hybrid Powertrain Control P060647 HYBRID/EV POWERTRAIN CONTROL MODULE PROCESSOR WATCHDOG/SAFETY MCU FAILURE
    P060687 HYBRID/EV POWERTRAIN CONTROL MODULE PROCESSOR TO MONITORING PROCESSOR MISSING MESSAGE
    P060A47 HYBRID/EV POWERTRAIN CONTROL MODULE MONITORING PROCESSOR WATCHDOG/SAFETY MCU FAILURE
    P060A87 HYBRID/EV POWERTRAIN CONTROL MODULE PROCESSOR FROM MONITORING PROCESSOR MISSING MESSAGE
    P1C9E9F HYBRID/EV SYSTEM RESET STUCK OFF
    Plug-in Battery Charger P060B49 HYBRID/EV POWERTRAIN CONTROL MODULE A/D PROCESSING INTERNAL ELECTRONIC FAILURE
    Communication system malfunction Plug-in Battery Charger U019B87 LOST COMMUNICATION WITH HYBRID/EV BATTERY CHARGER CONTROL MODULE MISSING MESSAGE

    When "Only DTC P1CDA00 is displayed" or "DTC other than above is displayed", go to  A.

    When DTCs related to [P-HEV Hybrid Powertrain Control] mentioned above are simultaneously displayed, go to  B.

    When DTCs related to [Plug-in Battery Charger] mentioned above are simultaneously displayed, go to  C.

    Yes  :

    1. Go to  2.
    2. Perform the diagnosis for the simultaneously displayed DTCs.
      NOTE: If more than one DTC is simultaneously displayed, perform the diagnosis in the order described in the above.
    3. Perform the diagnosis for the simultaneously displayed DTCs.
    NOTE: If more than one DTC is simultaneously displayed, perform the diagnosis in the order described in the above.

    No  : -

  2. CHECK CONNECTION CONDITION OF CONNECTOR (Hybrid vehicle control ECU assembly CONNECTOR)  .

    Check the connecting condition of connector (i369) in Hybrid vehicle control ECU assembly and check the relevant terminals for contact pressure, deformation and intrusion of water or foreign matter. Ref. to HYBRID ELECTRIC VEHICLE>HYBRID POWERTRAIN CONTROL MODULE .

    Is there looseness at the connector connection, or any poor contact, deformation or intrusion of water or foreign matters at the relevant terminals?

    Yes  : Connect the connector securely. Or repair the poor contact of connector.

    No  : Go to  3.

  3. CHECK CONNECTION CONDITION OF CONNECTOR (Electric vehicle charger assembly CONNECTOR)  .
    CAUTION: Make sure to wear insulated gloves and protective goggles during the work.
    1. Check that the Service plug is disconnected. Ref. to HYBRID ELECTRIC VEHICLE>SERVICE PLUG .
    2. Check the connecting condition of connector (HV31) in Electric vehicle charger assembly and check the relevant terminals for contact pressure, deformation and intrusion of water or foreign matters.

    Is there looseness at the connector connection, or any poor contact, deformation or intrusion of water or foreign matters at the relevant terminals?

    Yes  : Connect the connector securely. Or repair the poor contact of connector.

    No  : Go to  4.

  4. CHECK Wire harness AND CONNECTOR (Hybrid vehicle control ECU assembly - Electric vehicle charger assembly) (OPEN CIRCUIT)  .
    CAUTION: Make sure to wear insulated gloves and protective goggles during the work.
    1. Disconnect Hybrid vehicle control ECU assembly connector (i369).
    2. Disconnect Electric vehicle charger assembly connector (HV31).
    3. Using a tester, measure the resistance between Hybrid vehicle control ECU assembly connector and Electric vehicle charger assembly connector.

      Connector & terminal 

      (i369) No. 23 - (HV31) No. 1:

    Is the resistance 1 Ω or less?

    Yes  : Go to  5.

    No  : Repair or replace the Wire harness between Hybrid vehicle control ECU assembly connector and Electric vehicle charger assembly connector.

  5. CHECK Wire harness AND CONNECTOR (Hybrid vehicle control ECU assembly - Electric vehicle charger assembly) (SHORT TO GROUND)  .
    CAUTION: Make sure to wear insulated gloves and protective goggles during the work.

    Using a tester, measure the resistance between Hybrid vehicle control ECU assembly connector and chassis ground.

    Connector & terminal 

    (i369) No. 23 - Chassis ground:

    Is the resistance 10 kΩ or more?

    Yes  : Go to  6.

    No  : Repair or replace the Wire harness between Hybrid vehicle control ECU assembly connector and chassis ground.

  6. CHECK Hybrid vehicle control ECU assembly  .
    CAUTION: Make sure to wear insulated gloves and protective goggles during the work.
    1. Connect the connector (i369) of Hybrid vehicle control ECU assembly.
    2. Using a tester, measure the resistance between Electric vehicle charger assembly connector and chassis ground.

      Connector & terminal 

      (HV31) No. 1 - Chassis ground:

    Is the resistance 10 kΩ or more?

    Yes  : Go to  7.

    No  : Replace Hybrid vehicle control ECU assembly. Ref. to HYBRID ELECTRIC VEHICLE>HYBRID POWERTRAIN CONTROL MODULE .

  7. CHECK Hybrid vehicle control ECU assembly (+B2 VOLTAGE)  .
    CAUTION: Make sure to wear insulated gloves and protective goggles during the work.
    1. Disconnect Hybrid vehicle control ECU assembly connector (i370).
    2. Connect the Battery (12V) ground terminal. Ref. to REPAIR CONTENTS>REPAIR CONTENTS>NOTE>BATTERY .
    3. Turn to IG ON.
    4. Using a tester, measure the voltage between Hybrid vehicle control ECU assembly connector and chassis ground.

      Connector & terminal 

      (i370) No. 3 (+) - Chassis ground (-):

    Is the voltage 8 V or more?

    Yes  : Replace Electric vehicle charger assembly. Ref. to HYBRID ELECTRIC VEHICLE>ELECTRIC VEHICLE CHARGER .

    No  : Replace Hybrid vehicle control ECU assembly. Ref. to HYBRID ELECTRIC VEHICLE>HYBRID POWERTRAIN CONTROL MODULE .

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