Smart Access System (Keyless Start) (Diagnostics - Introduction): Diagnosis Lexus CT I

HOW TO PROCEED WITH TROUBLESHOOTING

HINT

1. Use these procedures to troubleshoot the smart access system with push-button start (for Start Function).
2. *: Use the Techstream.

1. VEHICLE BROUGHT TO WORKSHOP NEXT: Go to next step
2. CUSTOMER PROBLEM ANALYSIS CHECK HINT: In troubleshooting, confirm that the problem symptoms have been accurately identified. Preconceptions should be discarded in order to make an accurate judgment. To clearly understand what the problem symptoms are, it is extremely important to ask the customer about the problem and the conditions at the time the malfunction occurred. Gather as much information as possible for reference. Past problems that seem unrelated may also help in some cases. The following 5 items are important points for problem analysis: What Vehicle model, system name When Date, time, occurrence frequency, whether the problem occurred recently or has been occurring for a long time Where Whether the problem occurs at a specific location Under what conditions? Whether the doors were locked or unlocked, whether the power switch was on, whether the hybrid control system had started How did it happen? Problem symptoms* *: Be sure to ask the customer in detail about the following points concerning the vehicle operating conditions, environment and problem, and then check for DTCs. If the entry lock/unlock function does not operate for all doors. If the entry lock function does not operate. If the entry unlock function does not operate. If both the entry lock and unlock functions do not operate. If the wireless lock and unlock functions do not operate. If there is no power even when the power switch is pressed [does not turn on (ACC)]. If the hybrid control system does not start with the entry ignition function. If the wireless answer-back buzzer and outside warning buzzers do not sound. If the customer attempted to start the hybrid control system by touching the electrical key to the power switch and pressing the power switch. If the interior warning buzzers do not sound. Any other details concerning the problem. If it is thought that wave interference is likely, be sure to ask the customer in detail about the following points concerning the vehicle operating conditions, environment and problem. Specific locations where the system does not operate (such as near TV towers, large video displays, wireless garage door opener systems, wireless security cameras, home security systems, etc.). Specific times when the system does not operate: Whether or not symptoms occurred immediately after purchase or only recently. Whether or not the symptoms occurred when the key was near the vehicle (electrical key antenna). If the system does not operate only when near specific vehicles (there may be an effect from electric waves from the wireless systems of other vehicles). If the system operates intermittently. If the key is bundled together with other items. If the key is carried together with other electronic devices, such as cell phones, personal computers, portable music players, other electrical keys, etc. (keep the key at least 0.1 m (0.33 ft.) away from such items). Where the key is being kept when not in use: Whether or not the key being placed within 1 m (3.28 ft.) of items such as TVs, DVD recorders, induction cookers, rice cookers, dishwashers, modems, cell phones, personal computers, microwave ovens, desk or floor lamps, cordless telephones, etc. If there are electronic devices that transmit electric waves placed in the vehicle. When the key battery was last replaced (when the battery is low): The key battery can be checked using the "Key Low Battery" item in the Data List. Refer to «DATA LIST / ACTIVE TEST»(ref-568598-S30271670392013072300000) . If the customer installed any optional components (theft deterrent devices, wireless fog lights, etc.) to the vehicle. NEXT: Go to next step
3. INSPECT BASIC OPERATION Inspect auxiliary battery voltage. Standard voltage 11 to 14 V (IG OFF) NOTE: If the voltage is below 11 V, recharge or replace the auxiliary battery before proceeding to the next step. Check for blown fuses, open or shorted wire harnesses, improperly connected connectors and other problems in areas that can be visually inspected. NEXT: Go to next step
4. INSPECT COMMUNICATION FUNCTION OF CAN COMMUNICATION SYSTEM* Use the Techstream to check if the CAN communication system is functioning normally. Refer to «DIAGNOSIS SYSTEM»(ref-568746-S10222482722013072300000) . RESULT Result Proceed to CAN DTC is not output A CAN DTC is output B B --> GO TO CAN COMMUNICATION SYSTEM (HOW TO PROCEED WITH TROUBLESHOOTING). Refer to «HOW TO PROCEED WITH TROUBLESHOOTING»(ref-568746-S19329885762013072300000) A: Go to next step
5. CHECK FOR DTC* Check for DTCs and note any codes that are output. Refer to «DTC CHECK / CLEAR»(ref-568598-S10518791982013072300000) . RESULT Result Proceed to DTC is not output A Engine immobilizer system DTC is output B Smart access system with push-button start (for Entry Function) DTC is output C Smart access system with push-button start (for Start Function) DTC is output D B --> GO TO ENGINE IMMOBILIZER SYSTEM. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-568614-S01163157312013072300000) C --> GO TO SMART ACCESS SYSTEM WITH PUSH-BUTTON START (for Entry Function). Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-568597-S27843924052013072300000) D --> GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-568598-S07333014882013072300000) A: Go to next step
6. PROBLEM SYMPTOMS TABLE Refer to Problem Symptoms Table. Refer to «PROBLEM SYMPTOMS TABLE»(ref-568598-S28555715032013072300000) . RESULT Result Proceed to Fault is not listed in problem symptoms table A Fault is listed in problem symptoms table B B --> Go to step 8 A: Go to next step
7. OVERALL ANALYSIS AND TROUBLESHOOTING* Operation Check. Refer to «OPERATION CHECK»(ref-568598-S41103048252013072300000) . Terminals of ECU. Refer to «TERMINALS OF ECU»(ref-568598-S36847786812013072300000) . Data List / Active Test. Refer to «DATA LIST / ACTIVE TEST»(ref-568598-S30271670392013072300000) . NEXT: Go to next step
8. REPAIR OR REPLACE NEXT: Go to next step
9. CHECK FOR DTC* Clear the DTCs. Refer to «DTC CHECK / CLEAR»(ref-568598-S10518791982013072300000) . Recheck for DTCs. Refer to «DTC CHECK / CLEAR»(ref-568598-S10518791982013072300000) . HINT: Before checking for DTCs, perform the "DTC Output Confirmation Operation" procedure. RESULT Result Proceed to DTC is not output A DTC is output B B --> GO TO DIAGNOSTIC TROUBLE CODE CHART. Refer to «DIAGNOSTIC TROUBLE CODE CHART»(ref-568598-S07333014882013072300000) A --> END

Scheme 1

Scheme 2

Scheme 3

Scheme 4

1. OPERATION DESCRIPTION Smart ignition function: When the key is in the detection area inside the vehicle and the brake pedal is depressed, the hybrid control system is started by pressing the power switch. When the key is in the detection area inside the vehicle and the brake pedal is not depressed, the power source mode is changed by pressing the power switch. The power source mode changes in the following order every time the power switch is pressed: off --> on (ACC) --> on (IG) --> off. After getting into the vehicle while carrying the key when the power switch is off, if the power switch is pressed while not depressing the brake pedal, the power source mode changes to ACC and the power switch indicator illuminates in amber. After getting into the vehicle while carrying the key when the power switch is off, if the brake pedal is depressed while park (P) is selected, the power switch indicator illuminates in green. The hybrid control system starts if the power switch is pressed when the power switch indicator is illuminated in green. Changing the power source mode when the key does not operate correctly due to wave interference or key battery depletion: Unlock the door using the built-in mechanical key and get into the vehicle while carrying the key. While depressing the brake pedal, hold the ornament side of the key against the power switch. When a buzzer sound is heard from the buzzer in the combination meter, release the brake pedal within 10 seconds. By pressing the power switch while not depressing the brake pedal, the power source mode changes in the following order every time the power switch is pressed: off --> on (ACC) --> on (IG) --> off. Starting the hybrid control system when the key does not operate correctly due to wave interference or key battery depletion: Unlock the door using the built-in mechanical key and get into the vehicle while carrying the key. While depressing the brake pedal with park (P) is selected, hold the ornament side of the key against the power switch. When a buzzer sound is heard from the buzzer in the combination meter and the power switch indicator illuminates in green, press the power switch within 10 seconds while keeping the brake pedal depressed to start the hybrid control system.
2. CHECK SMART IGNITION FUNCTION Check the smart ignition function: Get into the vehicle while carrying the key with the power switch off. With park (P) is selected, check that the power switch indicator illuminates in green when the brake pedal is depressed. Then check that the hybrid control system starts when the power switch is pressed after the power switch indicator illuminates in green. While the brake pedal is released and the key is being carried, check that the power source mode changes in the following order when the power switch is pressed: off --> on (ACC) --> on (IG) --> off. HINT: When the power switch is pressed with the power switch on (IG) and park (P) not selected, the power source mode change to off. Check the smart ignition operation range for the front side. Place the key in either of the two locations making sure that the key is oriented as shown in the illustration, and then check that the hybrid control system can be started. TEXT IN ILLUSTRATION *a Inspection Point NOTE: Even if the key is in the vehicle interior key detection area, the key may not be properly detected if the key is on the instrument panel, in the glove box or on the floor. If the key is within 0.2 m (0.66 ft.) of the shift position, communication may not be possible. HINT: Perform this inspection for both inspection points. Check the smart ignition operation range for the rear side. Place the key in either of the two locations making sure that the key is oriented as shown in the illustration, and then check that the hybrid control system can be started. TEXT IN ILLUSTRATION *a Inspection Point NOTE: Even if the key is in the vehicle interior key detection area, the key may not be properly detected if the key is on the instrument panel, in the glove box or on the floor. If the key is within 0.2 m (0.66 ft.) of the center of the rear seat, communication may not be possible. HINT: Perform this inspection for both inspection points. Check the smart ignition operation range for the luggage compartment. Place the key in either of the two locations making sure that the key is oriented as shown in the illustration, and then check that the hybrid control system can be started. TEXT IN ILLUSTRATION *a Inspection Point HINT: Perform this inspection at both locations in the luggage compartment.
3. CHECK POWER SOURCE MODE CHANGING FUNCTION Check the power switch. Check that the power source mode changes according to the chart below. Shift Position Brake Pedal Power Source Mode when power switch Pressed Park (P) selected Released Off --> on (ACC) --> on (IG) --> off Park (P) selected Released on (READY) --> off Park (P) selected Depressed Off --> on (READY) Park (P) selected Depressed On (ACC) --> on (READY) Park (P) selected Depressed On (IG) --> on (READY) Park (P) selected Depressed On (READY) --> off Park (P) not selected Released On (IG) --> off Park (P) not selected Released On (READY) --> off Park (P) not selected Depressed On (READY) --> off
4. CHECK POWER SOURCE MODE INDICATION TEXT IN ILLUSTRATION *a Power Switch *b Indicator Light Check the power switch indicator. INDICATOR INSPECTION power switch Indicator Off (Excludes condition in which hybrid control system can be started) Off On (ACC) (Excludes condition in which hybrid control system can be started) Illuminated in amber On (IG) (Excludes condition in which hybrid control system can be started) Illuminated in amber Condition in which hybrid control system can be started* Illuminated in green Hybrid control system started Off HINT: *: CONDITIONS IN WHICH HYBRID CONTROL SYSTEM CAN BE STARTED IS AS FOLLOWS: The hybrid control system can be started by pressing the power switch when all of the following conditions are met. The key is verified*. Park (P) is selected. The stop light switch is on. *: When the key is in the vehicle, the ID code sent as a result from communication between the key and certification ECU (smart key ECU assembly) and the ID code calculated by the certification ECU (smart key ECU assembly) are compared. If the ID codes match each other, the vehicle recognizes that the key is in the vehicle. Indicator Condition Chart Indicator Vehicle State Off Either condition is met: The hybrid control system is starting. The power switch is off and the vehicle is in a state in which the hybrid control system does not start if the power switch is pressed. Illuminated in green All conditions below are met and the vehicle is in a state in which the hybrid control system can be started if the power switch is pressed: The key is inside the vehicle, the stop light switch is on and park (P) selected. Illuminated in amber The power switch is on (ACC) or on (IG), and the vehicle is in a state in which the hybrid control system does not start if the power switch is pressed. Blinking in amber (2 second intervals) The power management control ECU has an internal malfunction. The indicator starts blinking when the power management control ECU is determined to have an internal malfunction. The indicator stops blinking when the ECU returns to normal or 15 seconds elapse after blinking starts.

PROBLEM SYMPTOMS TABLE

HINT

1. Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
2. Inspect the fuses and relays related to the system before inspecting the suspected areas below.

SMART ACCESS SYSTEM WITH PUSH-BUTTON START (FOR START FUNCTION)

DIAGNOSIS SYSTEM

1. DESCRIPTION Smart access system with push-button start (for start function) data and the Diagnostic Trouble Codes (DTCs) can be read through the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions and perform repairs.
2. CHECK DLC3 Check the DLC3. Refer to «GENERAL INFORMATION»(ref-568589-S28103458762013072300000) .
3. INSPECT AUXILIARY BATTERY VOLTAGE Measure the auxiliary battery voltage with the power switch off. Standard voltage 11 to 14 V (IG OFF) If the voltage is below 11 V, recharge or replace the auxiliary battery.

DTC CHECK / CLEAR

Note. If the Techstream is connected to the vehicle with the power switch off, the information stored in smart access system with push-button start related ECUs (the certification ECU (smart key ECU assembly), power management control ECU and main body ECU) cannot be read. However, smart access system with push-button start DTCs and Data List information can be confirmed even if the power switch is off using the method below: Connect the Techstream to the vehicle, and turn a courtesy light switch 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). Connect the Techstream to the vehicle, select the vehicle type under manual mode, and then enter the following menus: for Power Source Control: Body Electrical / Power Source Control / Trouble Codes. for Smart Access: Body Electrical / Smart Access / Trouble Codes.

1. CHECK FOR DTC (POWER MANAGEMENT CONTROL ECU) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Power Source Control / Trouble Codes. Check for DTCs. HINT: Refer to the Techstream operator's manual for further details.
2. CHECK FOR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Access / Trouble Codes. Check for DTCs. HINT: Refer to the Techstream operator's manual for further details.
3. CLEAR DTC (POWER MANAGEMENT CONTROL ECU) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Power Source Control / Trouble Codes. Clear the DTCs by following the directions on the Techstream display. HINT: Refer to the Techstream operator's manual for further details.
4. CLEAR DTC (CERTIFICATION ECU (SMART KEY ECU ASSEMBLY)) Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Smart Access / Trouble Codes. Clear the DTCs by following the directions on the Techstream display. HINT: Refer to the Techstream operator's manual for further details.

DATA LIST / ACTIVE TEST

1. DATA LIST HINT: Using the Techstream to read the Data List allows the values or states of switches, sensors, actuators and other items to be read without removing any parts. This non-intrusive inspection can be very useful because intermittent conditions or signals may be discovered before parts or wiring is disturbed. Reading the Data List information early in troubleshooting is one way to save diagnostic time. NOTE: In the table below, the values listed under "Normal Condition" are reference values. Do not depend solely on these reference values when deciding whether a part is faulty or not. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Power Source Control / Trouble Codes. Read the Data List according to the display on the Techstream. POWER SOURCE CONTROL Tester Display Measurement Item/Range Normal Condition Diagnostic Note Stop Light Switch1 State of brake pedal/ON or OFF ON: Brake pedal depressed OFF: Brake pedal released Use this item to determine whether the stop light switch is malfunctioning. The hybrid control system cannot be started when this item is "OFF". When this item is malfunctioning, the hybrid control system can be started by pressing and holding the power switch for a certain period of time. Start Switch1 Condition of power switch contact 1/ON or OFF ON: Power switch pressed OFF: Power switch not pressed If the power switch is pressed for a short time, the display may not change. Use this item to determine whether the power switch input signal is malfunctioning. Start Switch2 Condition of power switch contact 2/ON or OFF ON: Power switch pressed OFF: Power switch not pressed This is the backup for power switch 1. Behaves the same way as power switch 1. Latch Circuit Condition of IG related backup circuit (IG hold circuit)/ON or OFF ON: Power switch on (IG) OFF: Power switch off This item behaves in almost the same way as the IG1 and IG2 relays. IG1 Relay Monitor (Outside) IG1 relay activation/ON or OFF ON: IG1 relay on OFF: IG1 relay off As this is the IG1 relay ON signal, this item displays "OFF" when the power switch is on (ACC). IG1 Relay Monitor (Inside) IG1 relay activation/ON or OFF ON: IG1 relay on OFF: IG1 relay off As this is the IG1 relay ON signal, this item displays "OFF" when the power switch is on (ACC). IG2 Relay Monitor (Outside) IG2 relay activation/ON or OFF ON: IG2 relay on OFF: IG2 relay off As this is the IG2 relay ON signal, this item displays "OFF" when the power switch is on (ACC). IG2 Relay Monitor (Inside) IG2 relay activation/ON or OFF ON: IG2 relay on OFF: IG2 relay off As this is the IG2 relay ON signal, this item displays "OFF" when the power switch is on (ACC). Starter Request Signal Condition of hybrid control system start command signal/ON or OFF ON: Power switch pressed and held while carrying key with park (P) selected and brake pedal depressed OFF: Power switch released after approximately 1 second elapses This item displays "ON" when starting the hybrid control system. The hybrid control system cannot be started when this item is "OFF". ACC Relay Monitor ACC relay activation/ON or OFF ON: ACC relay on OFF: ACC relay off This item displays "ON" when the power switch is on (ON). This item displays "OFF" when starting the hybrid control system. Ready Signal Status of the ready signal/ON or OFF ON: Hybrid control system on (on (READY)) OFF: Hybrid control system off Unknown: Other - Vehicle Speed Signal Vehicle moving or stationary/Stop or Run Run: Vehicle moving at 5 km/h (3 mph) or more Stop: Vehicle stopped - Shift P Signal Pulse Status of the shift P signal pulse/Unknown, Error2, Normal2, Error1, Normal3, Error3 or Normal1 Unknown: Other Error2: Signal abnormal and park (P) selected Normal2: Signal normal and park (P) selected Error1: Signal abnormal and park (P) state cannot be determined Normal3: Signal normal and R, N, D or S selected Error3: Signal abnormal and R, N, D or S selected Normal1: Signal normal and park (P) state cannot be determined Use this item to determine if the P position signal is malfunctioning. Power Supply Condition State of power supply/IG2 ON, ST ON, All OFF, IG1 ON or ACC ON All OFF: Power switch off (power supply off) ACC ON: Power switch on (ACC) (ACC relay on) IG1 ON: Power switch on (IG) (IG1 relay on) IG2 ON: Power switch on (IG) (IG2 relay on) ST ON: Starting hybrid control system Since IG1 ON and IG2 ON turn "on" at approximately the same time, IG1 ON may not be displayed (IG1 ON turns on for a very short time). Powertrain Type Vehicle identification/HV-AT, Cnv-MT, Cnv-AT, Cnv-MMT, S&S-MT, S&S-AT, S&S-MMT HV-AT: Hybrid A/T (A/T vehicle equipped with hybrid system) - IG1 Circuit IG1 relay coil circuit malfunction/OK or NG OK: Circuit normal NG: Circuit malfunctioning Use this item when determining whether the IG1 relay is malfunctioning. The hybrid control system cannot be started when this item displays "NG". IG2 Circuit IG2 relay coil circuit malfunction/OK or NG OK: Circuit normal NG: Circuit malfunctioning Use this item when determining whether the IG2 relay is malfunctioning. The hybrid control system cannot be started when this item displays "NG". Starter SW Sig Mismatch Power switch signal 1 and 2 mismatch/Yes or No Yes: Switch malfunctioning (power switch signal 1 and 2 do not match) No: Switch normal The hybrid control system can be started, even if this item displays "Yes". Park Signal Mismatch Park (P) signal malfunction/Yes or No Yes: Signal malfunction (CAN communication and direct line signal do not match) No: Signal normal The hybrid control system can be started, even if this item displays "Yes". Key Certif Wait T-Out Key verification malfunction/Yes or No Yes: Verification error (detected when ID code from key and ID stored in certification ECU (smart key ECU assembly) do not match) No: Verification normal The hybrid control system can be started, even if this item displays "Yes". Number of Diagnosis Code Number of DTCs/0 to 255 Number of DTCs will be displayed - Enter the following menus: Body Electrical / Smart Access / Data List. Read the Data List according to the display on the Techstream. SMART ACCESS Tester Display Measurement Item/Range Normal Condition Diagnostic Note Ignition Switch State of certification ECU (smart key ECU assembly) IG power supply input/ON or OFF ON: Power switch on (IG) OFF: Power switch off This item displays "OFF" when the power switch is on (ACC). # Code Number of DTCs/0 to 255 - - Immobilizer Engine immobilizer system status determined by certification ECU (smart key ECU assembly) / Set or Unset Set: Engine immobilizer set (hybrid control system start prohibited) (power switch off or driver door closed and open with power switch on (ACC)) Unset: Engine immobilizer unset (hybrid control system start permitted) (power switch on (IG)) When the engine immobilizer system does not change to the unset state, this item can be used to determine if the cause is the certification ECU (smart key ECU assembly) or ID code box (immobilizer code ECU). Steering Lock Sleep Cond Transmission control ECU sleep condition/Yes or No - - Steering Lock Start Cond Transmission state of transmission control ECU wake up signal/Yes or No Yes: Wake up signal transmitted No: Wake up signal not transmitted - Engine Start Condition State of hybrid control system start permission signal determined by transmission control ECU and sent to certification ECU (smart key ECU assembly)/OK or NG OK: Hybrid control system start permitted NG: Hybrid control system start prohibited When this item displays "OK", the certification ECU (smart key ECU assembly) has received an unlock confirmation signal from the transmission control ECU and has permitted hybrid control system start. The hybrid control system cannot be started when this item displays "NG". Engine Start Request Reception state of hybrid control system start permission signal determined by ID code box and sent to certification ECU (smart key ECU assembly)/OK or NG OK: Receiving signal NG: Not receiving signal When this item displays "OK", the certification ECU (smart key ECU assembly) has received engine start request signal from the ID code box and has permitted hybrid control system start. The hybrid control system cannot be started when this item displays "NG". S Code Check Verification result between certification ECU (smart key ECU assembly) and ID code box/NG or OK OK: Verification result normal NG: Verification result abnormal When a malfunction is present: The ID code for the certification ECU (smart key ECU assembly) or ID code box is not registered or the certification ECU (smart key ECU assembly) or ID code box is malfunctioning. The gearshift control cannot be locked. The gearshift control cannot be unlocked (the hybrid control system cannot be started). L Code Check Verification result between ID code box and transmission control ECU/NG or OK OK: Verification result normal NG: Verification result abnormal When a malfunction is present: The ID code for the ID code box or transmission control ECU is not registered or the ID code box or transmission control ECU is malfunctioning. The gearshift control cannot be locked. The gearshift control cannot be unlocked (the hybrid control system cannot be started). Unlock Request Receive Reception state of gearshift control unlock command signal sent to ID code box determined by certification ECU (smart key ECU assembly)/NG or OK HINT: The reception state is maintained for 10 seconds. OK: Within 10 seconds of turning power switch on (IG) or on (ACC) or starting hybrid control system NG: Except above If the unlock signal has not been received, the hybrid control system cannot be started. If this item does not change to "OK" even though the gearshift control unlock conditions are met, the certification ECU (smart key ECU assembly) or transmission control ECU may be malfunctioning. Lock Request Receive Reception state of gearshift control lock command signal sent to ID code box determined by certification ECU (smart key ECU assembly)/NG or OK OK: Within 10 seconds of opening any door with power switch off and park (P) selected NG: Except above If this item does not change to "OK" even though the gearshift control lock conditions are met, the certification ECU (smart key ECU assembly) may be malfunctioning. S Code Check (Past) Verification result between certification ECU (smart key ECU assembly) and ID code box (Past)/NG or OK OK: Verification result normal NG: Verification result abnormal (Past) - L Code Check (Past) Verification result between ID code box and transmission control ECU (Past)/NG or OK OK: Verification result normal NG: Verification result abnormal (Past) - Steering Lock State of whether transmission control ECU has determined gearshift control is locked/Unset or Set Set: Gearshift control locked Unset: Gearshift control unlocked If this item displays "Unset", the gearshift control does not lock. Steering Unlock State of whether transmission control ECU has determined gearshift control is unlocked/Unset or Set Set: Gearshift control unlocked Unset: Gearshift control locked If this item displays "Unset", the gearshift control does not unlock (hybrid control system cannot be started).
2. ACTIVE TEST HINT: Using the Techstream to perform Active Tests allows relay, VSVs, actuators and other items to be operated without removing any parts. This non-intrusive functional inspection can be very useful because intermittent operation may be discovered before parts or wiring is disturbed. Performing Active Tests early in troubleshooting is one way to save diagnostic time. Data List information can be displayed while performing Active Tests. Connect the Techstream to the DLC3. Turn the power switch on (IG). Turn the Techstream on. Enter the following menus: Body Electrical / Power Source Control / Active Test. Perform the Active Test according to the display on the Techstream. POWER SOURCE CONTROL Tester Display Test Part Control Range Diagnostic Note Indicator Condition Power switch indicator Green/Red/No Sig Power switch on (READY) Enter the following menus: Body Electrical / Smart Access / Active Test. Perform the Active Test according to the display on the Techstream. SMART ACCESS Tester Display Test Part Control Range Diagnostic Note Power / Engine SW Light Power switch illumination ON/OFF

DIAGNOSTIC TROUBLE CODE CHART

SMART ACCESS SYSTEM WITH PUSH-BUTTON START (FOR START FUNCTION)