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Smart Key System (For Start Function) (Diagnostics - Introduction) (Hybrid): Other Toyota Camry XV50

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PRECAUTION

  1. PRECAUTION FOR DISCONNECTING CABLE FROM NEGATIVE AUXILIARY BATTERY TERMINAL NOTE: When disconnecting the cable from the negative (-) auxiliary battery terminal, initialize the following system after the cable is reconnected. System Name See Procedure Parking Assist Monitor System Refer to «INITIALIZATION»(ref-508089-S02425298572012100900000)
  2. DOOR CONTROL RECEIVER EXPRESSIONS The type of door control receiver used on this model differs according to the specifications of the vehicles. The expressions listed in the table below are used in this article. Vehicle Specification Part Name in Manual Actual Part Name w/ Tire Pressure Warning System Door control receiver Door control and tire pressure monitoring system receiver assembly w/o Tire Pressure Warning System Door control receiver Door control receiver
  3. PRECAUTIONS WHEN USING TECHSTREAM When using the Techstream with the power switch off to troubleshoot the smart key system (for Start Function): Connect the Techstream to the DLC3 and turn a door courtesy light on and off at 1.5-second or less intervals until communication between the Techstream and vehicle begins (the Techstream screen changes when communication begins).
  4. PRECAUTION FOR REGISTRATION If replacing any of the following parts, refer to the registration procedures. Refer to «REGISTRATION»(ref-508113-S07524848702012100900000) . Certification ECU (smart key ECU assembly) Steering lock ECU (steering lock actuator assembly) Electrical key transmitter sub-assembly

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Scheme 153: ILLUSTRATION

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Scheme 156: SYSTEM DIAGRAM

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ComponentOutline
Power switch Transponder key amplifierTurns on the power and starts the hybrid control system. Contains a built-in transponder key amplifier to start the hybrid control system when the electrical key transmitter sub-assembly does not operate properly due to a depleted transmitter battery or wave interference.
Power management control ECUChanges the power source mode in 4 stages (off, on (ACC), on (IG), on (READY)) in accordance with the shift state and stop light switch. Controls the push-button start function in accordance with signals received from switches and ECUs. The power management control ECU and certification ECU (smart key ECU assembly) permit starting of the hybrid control system after receiving an unlock signal from the steering lock actuator assembly (steering lock ECU).
Certification ECU (smart key ECU assembly)Performs key verification. Controls the electrical key antenna (outside), electrical key antenna (indoor) and door lock/unlock sensor. Outputs smart entry door lock/unlock commands. Outputs steering lock actuator assembly lock/unlock command signals. Outputs immobilizer set/unset commands. Forms the smart key system detection area. Receives command signals from the certification ECU (smart key ECU assembly) and outputs immobilizer set and unset command signals to the power management control ECU. Records codes for smart verification.
Steering lock ECU (steering lock actuator assembly)Receives command signals from the certification ECU (smart key ECU assembly) and activates the steering lock actuator assembly. Records codes for smart verification.
Combination meter assemblyOperates various warnings (messages on the multi-information display, sounding of the buzzer in the combination meter), according to the command signals from the certification ECU (smart key ECU assembly). Displays information when the smart key system has a malfunction. Outputs a vehicle speed signal to the main body ECU (multiplex network body ECU).
IG, ACC relayTurns on/off according to the power management control ECU and provides power to each system.
Stop light switch assemblyDetects that the brake pedal has been depressed (switch is on) and outputs a signal to the power management control ECU.
No. 1 indoor electrical key antenna assembly (front floor) No. 2 indoor electrical key antenna assembly (rear floor)Sends the request code from the certification ECU (smart key ECU assembly) and forms the vehicle interior detection area.
Door control receiverReceives the smart key system code/wireless code sent from the electrical key transmitter sub-assembly and sends it to the certification ECU (smart key ECU assembly).
Electrical key transmitter sub-assemblySends the ID code upon receiving a request signal.

CUSTOMIZE PARAMETERS

  1. CUSTOMIZE SMART KEY SYSTEM (for Start Function) HINT: The following items can be customized. NOTE: When the customer requests a change in a function, first make sure that the function can be customized. Record the current settings before customizing. Customizing with the Techstream Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Customize Setting / Smart Key/Access or Warning. Select the setting by referring to the table below. SMART KEY/ACCESS Display Default Content Setting Relevant ECU Ignition Available Area (Entry ignition available area) All Function that sets the area that the key must be in before the power switch can be operated. Front or All Certification ECU (smart key ECU assembly) Auto Entry Cancel SW* OFF Function that enables or disables the smart key system. OFF or ON Certification ECU (smart key ECU assembly) Engine Start Indicator ON Function that turns the smart warning light on the combination meter assembly on or off. OFF or ON Certification ECU (smart key ECU assembly) *: w/o Daytime Running Light Control WARNING Display Default Content Setting Relevant ECU Key Low Battery Warning (Warn when key battery becomes weak) ON Enables or disables the sounding of the buzzer when the transmitter battery is low and the power switch is turned off after being on (IG) for 20 minutes or more. OFF or ON Certification ECU (smart key ECU assembly) Customizing with the multi-display (w/ Navigation System (for Navigation Receiver Type)) Turn the power switch on (IG). Enter the following menus: SETUP / Vehicle / Vehicle Customization / Door Lock Settings. Select the setting by referring to the table below. Display Default Content Setting Relevant ECU Select Doors to Unlock Driver's Door Function that sets which doors are unlocked by the entry unlock function. All Doors or Driver's Door Certification ECU (smart key ECU assembly) Customizing with the multi-display (w/ Audio and Visual System (for Radio and Display Type with Intuitive Parking Assist System)) Turn the power switch on (IG). Enter the following menus: SETUP / Vehicle / Vehicle Customization / Door Lock Settings. Select the setting by referring to the table below. Display Default Content Setting Relevant ECU Entry and Start System On Function that enables or disables the smart key system. On or Off Certification ECU (smart key ECU assembly) Entry cancel function (manual operation) HINT: While the smart key system is canceled, it is possible to lock and unlock the doors with the wireless operation, and the start system can be operated by holding the electrical key transmitter sub-assembly near the power switch. The following functions are disabled when the smart key system is canceled. Entry unlock/lock functions Entry luggage compartment door open function Push-button start function Key lock-in prevention function Entry warning functions When canceling the system through manual operation: Make sure the following conditions are met: The power switch is off. The driver door is closed. The driver door is unlocked. Press the unlock button of the electrical key transmitter sub-assembly. Open the driver door within 5 seconds of completing the step above (driver door: close condition --> opened). With the driver door open, press the unlock button of the electrical key transmitter sub-assembly 2 times within 5 seconds of completing the step above. NOTE: If the driver door is closed before or while pressing the unlock button, the entry cancel setting mode will end. Close and open the driver door twice completing the above step (driver door: open condition --> closed --> opened --> closed --> opened). With the driver door open, press the unlock button of the electrical key transmitter sub-assembly 2 times completing the step above. NOTE: If the driver door is closed before or while pressing the unlock button, the entry cancel setting mode will end. Close and open the driver door completing the step above (driver door: open condition --> closed --> opened). Close the driver door within 5 seconds of completing the above step. Check that the wireless buzzer sounds twice (short beeps) to confirm that the smart key system has been canceled. HINT: Finish the step 5 to 7 within 30 seconds. Perform the following procedure to restore the smart key system to the active state from the canceled state. Perform the procedures to cancel the smart key system again. Check that the wireless buzzer sounds once (short beep) to confirm that the smart key system has been restored to the active state. HINT: The system changes between the canceled state and the active state each time the procedure to cancel the system through manual operation is performed. The buzzer sounds twice when the system changes from the active state to the canceled state, and sounds once when the system changes from the canceled state to the active state.