Check Hybrid System: Code P0D81

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by funktuna, May 2, 2018.

  1. funktuna

    funktuna Junior Member

    Joined:
    Jul 7, 2014
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    Location:
    San Diego, CA
    Vehicle:
    2014 Prius Plug-in
    Model:
    Plug-in Base
    2014 Prius Plug-In 85,000 miles

    Originally my girfriend plugged in the car and the next day it had the yellow warning light and said Check hybrid system, pull over to a safe location. The car started and drove fine but the battery was low. I figured there was an electrical issue in the house while charging or she didn't plug it in correctly. Anyways I pulled the code with torque and got P0D81. I reset the code and all has been good for a month. Now the same thing happened where I only had 1 mile on the battery and the same warnings as before. I was using a different charging cable this time, so I don't think that is the issue. I plugged it back in after taking it for a spin and it charged fine.

    Has anyone else had this issue? My google research doesn't give me much information on this code. Is Torque not able to read the more detailed codes that Toyota would see? I haven't pulled the codes this time around yet.
     
  2. bisco

    bisco cookie crumbler

    Joined:
    May 11, 2005
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    Location:
    boston
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    hard to say, you might be fine. of course, it is always a good idea to use tech stream.
    it might be worthwhile checking/cleaning the battery cooling fans, ductwork and intake grilles.
     
  3. Erik Owens

    Erik Owens Member

    Joined:
    Mar 25, 2018
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    Location:
    Florida
    Vehicle:
    2010 Prius
    Model:
    Three
    DTC

    P0D81-643

    Input AC Voltage Malfunction

    [​IMG] .

    DTC NO.

    INF CODE

    DTC DETECTION CONDITION

    TROUBLE AREA

    P0D81

    643

    VAC sensor voltage is out of the specified range (too high or too low). (1 trip detection logic)

    • Electric vehicle charger assembly
    • Plugin charge control ECU assembly
    Related Data List
    DTC NO.

    INF CODE

    DATA LIST

    P0D81

    643

    • On-Board Charger Input Voltage
    • Charging Control Status
    • Voltage with Charge Cable Connected
    • Charge Cable Inserted
    • Charge Cable Engaged
    [​IMG] .

    GO TO DTC CHART (PLUG-IN CHARGE CONTROL SYSTEM)

    A
    [​IMG]
    [​IMG] .

    (c) Enter the following menus: Powertrain / Plug-in Control / Data List

    (d) Select "On-Board Charger Input Voltage" in the Data List.

    TESTER DISPLAY

    MEASUREMENT ITEM/RANGE

    On-Board Charger Input Voltage

    Effective AC voltage (VAC sensor value) input to the electric vehicle charger assembly from the charging inlet/

    Min.: 0.0 V, Max.: 6553.5 V

    (e) Set the tester to measure the following terminals.

    ITEM

    CONTENT

    Terminal

    z12-23 (VAC) - z12-21 (CGND)

    Tester Setting

    AC Voltage Range

    [​IMG]
    Text in Illustration
    *a

    Component with harness connected

    (Plugin Charge Control ECU Assembly)

    (f) Start plug-in charging and compare the Data List item "On-Board Charger Input Voltage" with the following value: actual measurement of VAC terminal voltage x 1000/7.

    RESULT

    PROCEED TO

    The difference between "On-Board Charger Input Voltage" and "actual measured voltage of VAC terminal x 1000/7" is less than 60 V

    A

    The difference between "On-Board Charger Input Voltage" and "actual measured voltage of VAC terminal x 1000/7" is 60 V or more

    B

    (g) Turn the power switch off.

    (h) Stop plug-in charging the vehicle.

    B [​IMG]
    REPLACE PLUGIN CHARGE CONTROL ECU ASSEMBLY

    A [​IMG]
    REPLACE ELECTRIC VEHICLE CHARGER ASSEMBLY

    [​IMG] [​IMG]
     
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