LEMON Manuals: Even more car manuals for everyone
Home >> Honda >> 2021 >> CR-V EX-L, AWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 60 (Battery Management System - DTC Diagnostics (Hybrid)) >> DTC Troubleshooting >> DTC P0A9E (50), P0AC8 (52), P0ACD (54), P0AEB (120)

DTC P0A9E (50), P0AC8 (52), P0ACD (54), P0AEB (120)

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

DTC P0A9E  : HV Battery Temperature Sensor 1 Circuit High

DTC P0AC8  : HV Battery Temperature Sensor 2 Circuit High

DTC P0ACD  : HV Battery Temperature Sensor 3 Circuit High

DTC P0AEB  : HV Battery Temperature Sensor 4 Circuit High

NOTE:  Before you troubleshoot, review the general troubleshooting information .

DTC Description Confirmed DTC Pending DTC Freeze Frame
P0A9E HV Battery Temperature Sensor 1 Circuit High      
P0AC8 HV Battery Temperature Sensor 2 Circuit High      
P0ACD HV Battery Temperature Sensor 3 Circuit High      
P0AEB HV Battery Temperature Sensor 4 Circuit High      

DTC (Electric Powertrain)

  1. Problem verification

    -1. Turn the vehicle to the ON mode.

    -2. Clear the DTC with the HDS.

    -3. Check the parameter(s) of the corresponding DTC below with the HDS.

    Signal Threshold Current conditions
    Values Unit Values Unit
    HV Battery Module Temperature Sensor1 Voltage More than 4.93 V    
    HV Battery Module Temperature Sensor2 Voltage More than 4.93 V    
    HV Battery Module Temperature Sensor3 Voltage More than 4.93 V    
    HV Battery Module Temperature Sensor4 Voltage More than 4.93 V    

    Do the current condition(s) match the threshold?

    YES 

    The failure is duplicated. Go to step 2.

    NO 

    Intermittent failure, the system is OK at this time. If the freeze data/on-board snapshot of this DTC is recorded, try to reproduce the failure under the same conditions with the freeze data/on-board snapshot.

  2. Determine possible failure area (TBATT line, SGTB line)

    -1. Check for Pending or Confirmed DTCs with the HDS.

    DTC Description Confirmed DTC Pending DTC Freeze Frame
    P0A9E HV Battery Temperature Sensor 1 Circuit High      
    P0AC8 HV Battery Temperature Sensor 2 Circuit High      
    P0ACD HV Battery Temperature Sensor 3 Circuit High      
    P0AEB HV Battery Temperature Sensor 4 Circuit High      

    Are DTC P0A9E, P0AC8, P0ACD, P0AEB, and P0BC5 indicated at the same time?

    YES 

    Go to step 4.

    NO 

    Go to step 3.

  3. Open wire check (TBATT line)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Remove the service plug and the IPU cover .

    -3. Disconnect the following connectors.

    Battery condition monitor module connector F (12P)
    DTC P0A9E: High voltage battery module temperature sensor connector A (2P)
    DTC P0AC8: High voltage battery module temperature sensor connector B (2P)
    DTC P0ACD, P0AEB: High voltage battery module temperature sensor connector C (4P)
    GHH375212Courtesy of HONDA, U.S.A., INC.
    GHH375213Courtesy of HONDA, U.S.A., INC.

    -4. Check for continuity between appropriate DTC's test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      DTC P0A9E: High voltage battery module temperature sensor connector A (2P) : disconnected
      DTC P0AC8: High voltage battery module temperature sensor connector B (2P): disconnected
      DTC P0ACD, P0AEB: High voltage battery module temperature sensor connector C (4P)
      Battery condition monitor module connector F (12P): disconnected
    DTC Test point 1 Test point 2
    P0A9E (TBATT1) Battery condition monitor module connector F (12P) No. 1 High voltage battery module temperature sensor connector A (2P) (male terminals) No. 1:
    P0AC8 (TBATT2) Battery condition monitor module connector F (12P) No. 7 High voltage battery module temperature sensor connector B (2P) (male terminals) No. 1:
    P0ACD (TBATT3) Battery condition monitor module connector F (12P) No. 2 High voltage battery module temperature sensor connector C (4P) (male terminals) No. 1:
    P0AEB (TBATT4) Battery condition monitor module connector F (12P) No. 8 High voltage battery module temperature sensor connector C (4P) (male terminals) No. 3:
    GHH375218Courtesy of HONDA, U.S.A., INC.
    GHH375219Courtesy of HONDA, U.S.A., INC.
    GHH375220Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Go to step 5.

    NO 

    Repair an open in the TBATT wire between the battery condition monitor module and the high voltage battery module temperature sensor.

  4. Open wire check (SGTB line)

    -1. Turn the vehicle to the OFF (LOCK) mode.

    -2. Remove the service plug and the IPU cover .

    -3. Disconnect the following connectors.

    Battery condition monitor module connector F (12P)
    DTC P0A9E: High voltage battery module temperature sensor connector A (2P)
    DTC P0AC8: High voltage battery module temperature sensor connector B (2P)
    DTC P0ACD, P0AEB: High voltage battery module temperature sensor connector C (4P)
    GHH375221Courtesy of HONDA, U.S.A., INC.
    GHH375222Courtesy of HONDA, U.S.A., INC.

    -4. Check for continuity between appropriate DTC's test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      DTC P0A9E: High voltage battery module temperature sensor connector A (2P): disconnected
      DTC P0AC8: High voltage battery module temperature sensor connector B (2P): disconnected
      DTC P0ACD, P0AEB: High voltage battery module temperature sensor connector C (4P): disconnected
      Battery condition monitor module connector F (12P): disconnected
    DTC Test point 1 Test point 2
    P0A9E Battery condition monitor module connector F (12P) No. 6 High voltage battery module temperature sensor connector A (2P) (male terminals) No. 2:
    P0AC8 High voltage battery module temperature sensor connector B (2P) (male terminals) No. 2:
    P0ACD High voltage battery module temperature sensor connector C (4P) (male terminals) No. 2:
    P0AEB High voltage battery module temperature sensor connector C (4P) (male terminals) No. 4:
    GHH375227Courtesy of HONDA, U.S.A., INC.
    GHH375228Courtesy of HONDA, U.S.A., INC.
    GHH375229Courtesy of HONDA, U.S.A., INC.

    Is there continuity?

    YES 

    Go to step 5.

    NO 

    Repair an open in SGTB wire between the battery condition monitor module and the high voltage battery module temperature sensor.

  5. High voltage battery module temperature sensor check

    -1. At the sensor side, measure the resistance between appropriate DTC's test points 1 and 2.

    Test condition Vehicle OFF (LOCK) mode
      DTC P0A9E: High voltage battery module temperature sensor connector A (2P): disconnected
      DTC P0AC8: High voltage battery module temperature sensor connector B (2P): disconnected
      DTC P0ACD, P0AEB: High voltage battery module temperature sensor connector C (4P): disconnected
      Battery condition monitor module connector F (12P): disconnected
    DTC High voltage battery module temperature sensor connector Test point 1 Test point 2
    P0A9E A (2P) (female terminals) No. 1: No. 2:
    P0AC8 B (2P) (female terminals) No. 1: No. 2:
    P0ACD C (4P) (female terminals) No. 1: No. 2:
    P0AEB C (4P) (female terminals) No. 3: No. 4:
    GHH375238Courtesy of HONDA, U.S.A., INC.
    GHH375239Courtesy of HONDA, U.S.A., INC.
    GHH375240Courtesy of HONDA, U.S.A., INC.
    GHH375241Courtesy of HONDA, U.S.A., INC.

    Is resistance value within the range?

    YES 

    The high voltage battery module temperature sensor is OK. Replace the battery condition monitor module .

    NO 

    Replace the following high voltage battery module temperature sensor .

    • DTC P0A9E: High voltage battery module temperature sensor A
    • DTC P0AC8: High voltage battery module temperature sensor B
    • DTC P0ACD, P0AEB: High voltage battery module temperature sensor C
scientia non olet · About LEMON Manuals