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Home >> Toyota >> 2015 >> Prius C Three >> Repair and Diagnosis >> Hybrid/Electric Powertrain >> Battery Management Systems >> Hybrid Battery System (Diagnostic Codes (P0A7F-123 - U029A-123)) >> Hybrid Battery System >> DTC P0AFC-123: Hybrid Battery Pack Sensor Module [12/2014 - ] >> Procedure

DTC P0AFC-123: Hybrid Battery Pack Sensor Module [12/2014 - ]: Procedure

  1. CHECK HARNESS AND CONNECTOR (IGCT VOLTAGE) 
    WARNING: Be sure to wear insulated gloves.
    1. Check that the service plug grip is not installed.
      NOTE: After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.
    2. Remove the No. 1 hybrid battery exhaust duct. Refer to REMOVAL [12/2014 - ] - Step 10 .
    3. Connect the cable to the negative (-) auxiliary battery terminal.
      NOTE: Check and record any DTCs, INF codes and freeze frame data, then disconnect the cable from the negative (-) auxiliary battery terminal.
    4. Turn the ignition switch to ON (IG).
    5. Measure the voltage according to the value(s) in the table below.
      GTY477160Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Voltage

      Tester Connection Switch Condition Specified Condition
      M39-3 (IGCT) - M39-6 (GND) Ignition switch ON (IG) 11 to 14 V
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Battery Smart Unit)
      NOTE: Turning the ignition switch to ON (IG) with the service plug grip removed causes other DTCs to be stored. Clear the DTCs after performing this inspection.
    6. Turn the ignition switch off.
    7. Disconnect the cable from the negative (-) auxiliary battery terminal.
    8. Install the No. 1 hybrid battery exhaust duct.

    NG → See step   2 

    OK → See step   3 

  2. CHECK HARNESS AND CONNECTOR (GND - BODY GROUND) 
    WARNING: Be sure to wear insulated gloves.
    1. Check that the service plug grip is not installed.
      NOTE: After removing the service plug grip, do not turn the ignition switch to ON (READY), unless instructed by the repair information because this may cause a malfunction.
    2. Remove the No. 1 hybrid battery exhaust duct. Refer to REMOVAL [12/2014 - ] - Step 10 .
    3. Measure the resistance according to the value(s) in the table below.
      GTY335007Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

      Standard Resistance

      Tester Connection Switch Condition Specified Condition
      M39-6 (GND) - Body ground Ignition switch off Below 1 Ω
      TEXT IN ILLUSTRATION

      *a Component with harness connected
      (Battery Smart Unit)
    4. Install the No. 1 hybrid battery exhaust duct.

    NG → REPAIR OR REPLACE HARNESS OR CONNECTOR (GND - BODY GROUND) 

    OK → REPAIR OR REPLACE HARNESS OR CONNECTOR (BATT VL SSR FUSE - BATTERY SMART UNIT) 

  3. REPLACE BATTERY SMART UNIT. Refer to  COMPONENTS [12/2014 - ] 
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