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Home >> Toyota >> 2018 >> Prius Three Touring >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Testing and Diagnosis >> Hybrid Control System (Nickel Metal Hydride) - Diagnostic Codes (2 Of 9) >> HYBRID CONTROL SYSTEM (for NICKEL METAL HYDRIDE BATTERY) >> DTC P0A81-15: Hybrid/EV Battery Cooling Fan 1 Circuit Short to Auxiliary Battery or Open [11/2015 - 12/2018] >> Procedure

DTC P0A81-15: Hybrid/EV Battery Cooling Fan 1 Circuit Short to Auxiliary Battery or Open [11/2015 - 12/2018]: Procedure

  1. 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 for DTCs.

      Powertrain > Hybrid Control > Trouble Codes 

      Result

      Result Proceed to
      "P0AFC-00 or P0AFC-96" is not output. A
      "P0AFC-00 or P0AFC-96" is also output. B
    5. Turn the power switch off.

    Result: 

    B 

    GO TO DTC CHART (HYBRID CONTROL SYSTEM). Refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2015 - 11/2017]  , or refer to  DIAGNOSTIC TROUBLE CODE CHART [11/2017 - 12/2018] 

    Result: 

    A 

    See step  2

  2. CHECK BATTERY VOLTAGE SENSOR (FREQUENCY) 

    See step  6

    Result

    Proceed to
    OK
    NG

    Result: 

    OK 

    REPLACE BATTERY COOLING BLOWER ASSEMBLY. Refer to  REMOVAL [11/2015 -] 

    Result: 

    NG 

    REPLACE BATTERY VOLTAGE SENSOR. Refer to  REMOVAL [11/2015 - 12/2018]