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Home >> Toyota >> 2016 >> Corolla S, Standard Trans >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Anti-Theft Systems >> Immobilizer System (W/ Smart Key) - Diagnostics - Introduction (Model Code: ZRE172) >> IMMOBILIZER SYSTEM (W/ Smart Key System) >> Precaution [08/2013 - 08/2016] >> Precaution [08/2013 - 08/2016]
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Precaution [08/2013 - 08/2016]

  1. PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE BATTERY TERMINAL 
    NOTE:

    When disconnecting the cable from the negative (-) battery terminal, initialize the following system after the cable is reconnected.

    System Name See Procedure
    Air Conditioning System (for Automatic Air Conditioning System) Refer to INITIALIZATION [08/2013 - 08/2015] Refer to INITIALIZATION [08/2015 - 08/2016]
  2. PRECAUTIONS WHEN USING TECHSTREAM 
    1. When using the Techstream with the engine switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle type under manual mode and enter the following menus: Body Electrical / Smart Key. While using the Techstream, periodically turn a courtesy light switch on and off at intervals of 1.5 seconds or less to maintain communication between the Techstream and the vehicle.
    2. After all DTCs are cleared, check if the malfunction occurs again 6 seconds after turning the engine switch on (IG).
  3. PRECAUTION FOR REGISTRATION 
    1. If replacing any of the following parts, refer to Registration.

      Refer to REGISTRATION [08/2013 - ] 

      NOTE:

      Any electrical key transmitter sub-assemblies or ECUs for which registration has been performed cannot be reused.

      1. Certification ECU (smart key ECU assembly)
      2. ID code box ECU (immobilizer code ECU)
      3. Steering lock ECU (steering lock actuator assembly)
      4. Electrical key transmitter sub-assembly
      5. ECM
    2. After replacing the steering lock ECU (steering lock actuator assembly), confirm the lock/unlock operation of the steering lock.
      OPERATION

      Steering Lock Operation Condition
      Locks With the engine switch off, open and close any door.
      Unlocks Turn the engine switch from off to on (ACC) or on (IG).
  4. PRECAUTIONS FOR BATTERY 
    1. Immediately after disconnecting and reconnecting the battery cable, the entry unlock function may not operate. If this occurs, the entry unlock function can be restored by performing a wireless door lock and unlock operation.
    2. When the battery is discharged, if the battery of another vehicle is used to jump start the engine, move the shift lever to P and open and close the driver door with the engine switch off before starting the engine.
    3. After the battery is removed and reinstalled, be sure to wait 10 seconds or more before the next engine start. The engine may not start immediately after the battery is reinstalled.

      HINT: 

      • After disconnecting and reconnecting the battery cable, the engine may not start on the first attempt. If this occurs, turn the engine switch off. The engine will start normally from the second time onward.
      • When the battery cable is disconnected and reconnected, the power source mode returns to the mode it was in before the battery cable was disconnected.
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