PRECAUTION [03/2012 - ]
- PRECAUTIONS WHEN USING TECHSTREAM When using the Techstream with the power switch off to troubleshoot the smart access system with push-button start (for Start Function): Connect the Techstream to the DLC3 and turn a door courtesy light on and off at intervals of 1.5 seconds or less until communication between the Techstream and vehicle begins (the Techstream screen changes when communication begins).
- PRECAUTION FOR REGISTRATION If replacing any of the following parts, refer to the registration procedures. Refer to «REGISTRATION [03/2012 - ]»(ref-600446-S15322006622014022400000) . Certification ECU (smart key ECU assembly) Steering lock ECU (steering lock actuator assembly) ID code box (immobilizer code ECU) Power management control ECU Electrical key transmitter sub-assembly Main body ECU (multiplex network body ECU) If the certification ECU is replaced, the hybrid control system may not be able to start because the recorded lock position may not match the recorded lock position in the steering lock ECU (steering lock actuator assembly). After replacing the certification ECU, perform the following procedure. Move the shift lever to P. With the power switch off, open and close the driver door, and then start the hybrid control system.
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![Scheme 13: SYSTEM DIAGRAM [03/2012 - ]](https://i.diagnostdata.com/repair/9a/9a6340266185ee7d33167a7a2754c7f184d3f0bc337f129043ab6fdebcb0bf89.webp)
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| Component | Outline |
|---|---|
| Power switch Transponder key amplifier | Turns on the power and starts the hybrid control system. Contains a built-in transponder key amplifier to start the hybrid control system when the key does not operate properly due to a depleted auxiliary battery or wave interference. |
| Power management control ECU | Changes 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 immobilizer set/unset commands. Outputs steering lock actuator assembly lock/unlock command signals. Forms the entry function detection area. |
| ID code box (immobilizer code ECU) | Receives command signals from the certification ECU (smart key ECU) and outputs immobilizer set and unset command signals to the ECM. Records codes for smart verification. |
| Steering lock ECU (steering lock actuator assembly) | Receives command signals from the certification ECU (smart key ECU) and activates the steering lock actuator assembly. Records codes for smart verification. |
| Combination meter assembly | Operates various warnings (messages on the multi-information display, sounding of the buzzer in the combination meter, blinking or illumination of the smart warning light) according to the command signals from the certification ECU (smart key ECU). Outputs a vehicle speed signal to the main body ECU (multiplex network body ECU). |
| IG, ACC relay | Turns on/off according to the certification ECU (smart key ECU) and provides power to each system. |
| Stop light switch assembly | Detects that the brake pedal has been depressed (switch is on) and outputs a signal to the certification ECU (smart key 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) and forms the vehicle interior detection area. |
| Door control receiver | Receives the smart access system with push-button start code/wireless code sent from the key and sends it to the certification ECU (smart key ECU). |
| Electrical key transmitter sub-assembly | Sends the ID code upon receiving a request signal. |
CUSTOMIZE PARAMETERS [03/2012 - ]
- CUSTOMIZE SMART ACCESS SYSTEM WITH PUSH-BUTTON START (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 / 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) Engine Start Indicator ON Function that turns the smart warning light on the combination meter assembly on or off. OFF or ON 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) Entry cancel function (manual operation) HINT: While the smart access system with push-button start 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 access system with push-button start 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 switch 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 switch 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 switch, 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 switch 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 switch, 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 access system with push-button start has been canceled. HINT: Finish steps 5 to 7 within 30 seconds. Perform the following procedure to restore the smart access system with push-button start to the active state from the canceled state. Perform the procedures to cancel the smart access system with push-button start again. Check that the wireless buzzer sounds once (short beep) to confirm that the smart access system with push-button start 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.