Data List / Active Test [10/2018 - 07/2022]

WARNING: This page is about a different car, the 2022 Lexus UX 200, 2021 Lexus UX 200, 2020 Lexus UX 200, and 2019 Lexus UX 200. However, it is still accessible from the selected car via links, so may be relevant.

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 engine switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / (desired system) / Data List.

Read the Data List according to the display on the Techstream.

Body Electrical > Power Source Control > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Shift P Signal	Shift position P	OFF or ON	OFF: Shift lever not in P ON: Shift lever in P	Use this item to determine whether the shift lever position switch (P) is malfunctioning.
Steering Unlock Switch	State of steering unlock sensor signal output from steering lock ECU (steering lock actuator or upper bracket assembly)	OFF or ON	OFF: Steering locked ON: Steering unlocked	When the shift lever is in P and the engine switch is off, if any door is opened or closed, the steering is locked. When the electrical key transmitter sub-assembly is in the cabin and the engine switch is turned on (ACC) or on (IG), the steering unlocks. The engine cannot be started when the steering unlock signal is off.
Stop Light Switch1	State of brake pedal	OFF or ON	OFF: Brake pedal released ON: Brake pedal depressed	Use this item to determine if the stop light switch assembly is malfunctioning. The engine cannot be started when this item is OFF. If the stop light switch assembly is malfunctioning, the engine can be started by pressing and holding the engine switch for a certain period of time.
Start Switch1	Engine switch 1 status	OFF or ON	OFF: Engine switch not pressed ON: Engine switch pressed	If the engine switch is pressed for a short time, the display may not change. Use this item to determine if the engine switch input signal is malfunctioning.
Start Switch2	Engine switch 2 status	OFF or ON	OFF: Engine switch not pressed ON: Engine switch pressed	Backup for engine switch 1. However, when the engine switch is pressed and held, the control functions only when both engine switch 1 and 2 are normal. Behaves the same way as engine switch 1.
Neutral SW/ Clutch SW	Shift position (P and N)	OFF or ON	OFF: Shift lever in any position other than P or N ON: Shift lever in P or N	Use this item to determine if the park/neutral position switch is malfunctioning. When the engine cannot be started due to a park/neutral position switch malfunction, OFF is displayed.
Latch Circuit	Status of IG related backup circuits	OFF or ON	OFF: Engine switch off ON: Engine switch on (IG)	Operates in almost the same manner as the IG relay. When the engine switch is on (ACC), OFF is displayed.
Starter Request Signal	Engine start request signal status	OFF or ON	OFF: The engine switch is not pressed ON: With the shift lever in P and the brake pedal depressed, the engine switch is pressed and held	When the engine cannot be started due to a start request signal malfunction, OFF is displayed. When the engine switch is pressed, the duration of time that ON is displayed will be extremely short. As such, the engine switch needs to be pressed and held for a certain period of time.
ACC Relay Monitor	ACC relay activation	OFF or ON	OFF: Engine switch off ON: Engine switch on (ACC)	When the engine switch is on (IG), ON is displayed.
Engine Condition	Engine state	Stop or Run	Stop: Engine stopped Run: Engine running	-
Vehicle Speed Signal	Vehicle being driven or stopped	Stop or Run	Stop: Vehicle stopped Run: Vehicle being driven at 5 km/h (3 mph) or more	-
Power Supply Condition	Power supply state	All OFF, ACC ON, IG ON or ST ON	All OFF: Engine switch off (ACC and IG) ACC ON: Engine switch on (ACC) IG ON: Engine switch on (IG) ST ON: Sending engine start request signal	-
Powertrain Type	Vehicle identification	HV-AT, Cnv-MT, Cnv-AT, Cnv-MMT, S&S-MT, S&S-AT, S&S-MMT or PHV-AT	Cnv-AT: Conventional A/T model (w/o Hybrid System) S&S-AT: Conventional A/T model with stop and start system (w/o Hybrid System)	-
Park Signal Mismatch	P position signal malfunction	No or Yes	No: Signal normal Yes: Signal malfunction (signals via CAN communication and direct line do not match)	Even when Yes is displayed, it is still possible to turn the engine switch off (the power source mode will not be stuck in on (ACC) or on (IG)).
Str Lock/Unlock Wait T-Out	Steering lock or unlock malfunction	No or Yes	No: Lock and unlock normal Yes: Lock or unlock malfunction (e.g. steering lock is stuck etc.)	When the engine cannot be started due to a steering lock or unlock malfunction, Yes is displayed.
Key Certif Wait T-Out	Key verification malfunction	No or Yes	No: Verification normal Yes: Verification error (Detected due to the electrical key transmitter sub-assembly ID code and the ID code stored in the certification ECU (smart key ECU assembly) not matching)	When the engine cannot be started due to a key verification error, Yes is displayed.
IG Circuit	IG relay coil circuit malfunction	OK or NG	OK: Circuit normal NG: Circuit malfunctioning	Use this item to determine if the IG relay is malfunctioning. When the engine cannot be started due to an IG relay malfunction, NG is displayed.
IG Relay Monitor (Outside)	IG relay coil voltage monitor status	OFF or ON	OFF: Engine switch off ON: Engine switch on (IG)	Use this item to determine if the IG relay is malfunctioning. When the engine switch is on (ACC), OFF is displayed.
IG Relay Monitor (Inside)	IG relay activation	OFF or ON	OFF: Engine switch off ON: Engine switch on (IG)	Use this item to determine if the IG relay is malfunctioning. When the engine switch is on (ACC), OFF is displayed.
Number of Diagnosis Code	Number of DTCs	0 to 255	-	-

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

To check if the Data List display changes, get into the vehicle while carrying an electrical key transmitter sub-assembly and perform the following operations with the engine switch off and the shift lever in P.

*1: Press the engine switch with the brake pedal released and check that the engine switch turns on (ACC).

*2: Press the engine switch with the brake pedal released and check that the engine switch turns on (IG).

*3: Depress the brake pedal (stop light switch assembly is on).

*4: Press the engine switch with the brake pedal depressed and check that the engine starts.

*5: Press the engine switch with the brake pedal depressed and check that the engine switch turns off.

*6: Release the brake pedal.

*7: Open a door.

Body Electrical > Smart Access > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Unmatched Vehicle-ID	Key No. (incorrect or correct)	No or Yes	No: Communication normal Yes: Communication malfunction	The vehicle ID registered in the vehicle and the vehicle ID registered in the electrical key transmitter sub-assembly are different (if a key from another vehicle is brought into the vehicle exterior detection area while the doors are locked, "Yes" is displayed for "Unmatched Vehicle-ID" in the Data List). Other potential causes: An electrical key transmitter sub-assembly from a different vehicle is being used. A communication error due to wave interference. The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning.
No Response	Communication response	No or Yes	No: Communication normal Yes: Communication malfunction	The vehicle IDs registered in the vehicle and electrical key transmitter sub-assembly match, but there is no response from the electrical key transmitter sub-assembly. (If the electrical key transmitter sub-assembly is not in the detection area or the transmitter battery is depleted resulting in a matching code not being detected when a lock switch or the engine switch is pressed, etc., "Yes" is displayed for "No Response" in the Data List. If there is wave interference in the LF band that the vehicle uses for transmission or the RF band that the electrical key transmitter sub-assembly uses for transmission, "Yes" may be displayed for "No Response" in the Data List.) Other potential causes: An electrical key transmitter sub-assembly from a different vehicle is being used. The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning.
Key Low Battery	Transmitter battery depleted	No or Yes	No: Transmitter battery not depleted Yes: Transmitter battery depleted	The electrical key transmitter sub-assembly sends voltage information to the certification ECU (smart key ECU assembly) when it is transmitting. "Yes" is displayed for the Data List item "Key Low Battery" when this voltage information indicates 2.2 V or less. HINT: This Data List item should be checked when the electrical key transmitter sub-assembly is at room temperature (example: at -20°C (-4°F), "Yes" may be displayed even if the transmitter battery is new). "Yes" can be displayed only when the Data List item "No Response" is "No".
# Codes	Number of DTCs	0 to 255	-	-
Immobilizer when IG=ON	Immobiliser function status when engine switch on (IG)	UNSET or SET	UNSET: Immobiliser function not set with engine switch on (IG) or immobiliser function unset 40 times after immobiliser function set SET: Immobiliser function set (driver door opened and closed with engine switch on (IG))	-
Immobiliser	Immobiliser system status determined by certification ECU (smart key ECU assembly)*8	Set or Unset	Set: Immobiliser set (engine start prohibited) (engine switch off) Unset: Immobiliser unset (engine start permitted) (engine switch on (ACC) or on (IG))	The engine cannot be started when Set is displayed. HINT: The security indicator light blinks when Set is displayed. The security indicator light is linked with set/unset of the immobiliser and not linked with lock/unlock of the steering.
Master Key	Matching of master key ID code and ID code registered in certification ECU (smart key ECU assembly)	NoMatch or Match	NoMatch: ID code of master key does not match ID code registered in certification ECU (smart key ECU assembly) Match: ID code of master key matches ID code registered in certification ECU (smart key ECU assembly)	-
Sub Key	Matching of sub key ID code and ID code registered in certification ECU (smart key ECU assembly)	NoMatch or Match	NoMatch: ID code of sub key does not match ID code registered in certification ECU (smart key ECU assembly) Match: ID code of sub key matches ID code registered in certification ECU (smart key ECU assembly)	-
BCC Malfunction	BCC signal status of transponder chip*1	OK or NG	OK: BCC signal normal NG: BCC signal malfunction (malfunction in code computation in electrical key transmitter sub-assembly/certification ECU (smart key ECU assembly))	Problems may be caused by the following: Communication errors due to wave interference (LF). The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) malfunctioning.
Abnormal Status	Transponder chip status signal*1	OK or NG	OK: Transponder chip status signal normal NG: Transponder chip status signal malfunction (malfunction in code computation in electrical key transmitter sub-assembly/certification ECU (smart key ECU assembly))	Problems may be caused by the following: An electrical key transmitter sub-assembly from a different vehicle is being used. The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) malfunctioning.
Different Encrypt Code	Matching of transponder chip code and certification ECU (smart key ECU assembly) code*1	OK or NG	OK: Codes of transponder chip and certification ECU (smart key ECU assembly) match NG: Codes of transponder chip and certification ECU (smart key ECU assembly) do not match	Problems may be caused by the following: An electrical key transmitter sub-assembly from a different vehicle is being used. The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) malfunctioning.
Different Serial Number	Vehicle serial number*1	OK or NG	OK: Signal from transponder chip and vehicle serial number stored in the certification ECU (smart key ECU assembly) match NG: Signal from transponder chip and vehicle serial number stored in the certification ECU (smart key ECU assembly) do not match	Problems may be caused by the following: An electrical key transmitter sub-assembly from a different vehicle is being used. The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) malfunctioning.
Frame Error	State of data sent from electrical key transmitter sub-assembly	OK or NG	OK: No problem with data sent from electrical key transmitter sub-assembly NG: Problem with data sent from electrical key transmitter sub-assembly	Problems may be caused by the following: Communication errors due to wave interference. The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) malfunctioning.
Response	Electrical key transmitter sub-assembly response to signal from certification ECU (smart key ECU assembly)	OK or NG	OK: Electrical key transmitter sub-assembly responds to signal from certification ECU (smart key ECU assembly) NG: Electrical key transmitter sub-assembly does not respond to signal from certification ECU (smart key ECU assembly)	Problems may be caused by the following: A key from a different vehicle is being used. The electrical key transmitter sub-assembly, certification ECU (smart key ECU assembly) or engine switch malfunctioning.
Wireless Starter Com ID	Certification between remote engine start ECU and certification ECU (smart key ECU assembly)	No Regd or Regd	No Regd: Certification between remote engine start ECU and certification ECU (smart key ECU assembly) not complete Regd: Certification between remote engine start ECU and certification ECU (smart key ECU assembly) complete	-
Wireless C Code	Registration status between remote engine start ECU and certification ECU (smart key ECU assembly)	No Regd or Regd	No Regd: Remote starter ID not registered to remote engine start ECU and certification ECU (smart key ECU assembly) Regd: Remote starter ID registered to remote engine start ECU and certification ECU (smart key ECU assembly)	Problems may be caused by the following: DTC B2779 is stored. Remote engine start ECU registration has not been performed. Malfunctions in the certification ECU (smart key ECU assembly) or remote engine start ECU.
Steering Lock Sleep Cond	Steering lock ECU sleep availability	No or Yes	No: Sleep not available Yes: Sleep available	-
Steering Lock Start Cond	Steering lock ECU wake up signal status	No or Yes	No: Wake up signal not sent Yes: Wake up signal sent	-
Engine Start Condition	Status of engine start permission signal determined by steering lock ECU (steering lock actuator or upper bracket assembly) and sent to certification ECU (smart key ECU assembly)*2	NG or OK	NG: Engine start prohibited OK: Engine start permitted	When OK is displayed, the certification ECU (smart key ECU assembly) receives an unlock confirmation signal from the steering lock ECU (steering lock actuator or upper bracket assembly) and makes engine starting possible. The engine cannot be started when NG is displayed.
Sensor Value	History of malfunction of position sensor in steering lock ECU (steering lock actuator or upper bracket assembly) (DTC B2781 is stored)	OK or NG(Past)	OK: History of malfunction for the lock or unlock sensor in the steering lock ECU (steering lock actuator or upper bracket assembly) does not exist. NG(Past): History of both the lock and unlock sensors in the steering lock ECU (steering lock actuator or upper bracket assembly) being on exists. (Under normal operation, neither sensor is on.)	When NG(Past) is displayed, either the position sensor in the steering lock ECU (steering lock actuator or upper bracket assembly) or the assembly itself may be malfunctioning.
Power Supply Short	History of signal error (short) sent from certification ECU (smart key ECU assembly) to steering lock ECU (steering lock actuator or upper bracket assembly) (DTC B2782 is stored)	OK or NG(Past)	OK: History of motor power source short does not exist NG(Past): History of motor power source short exists	This item displays history of a malfunction in the circuit between the certification ECU (smart key ECU assembly) and the steering lock ECU (steering lock actuator or upper bracket assembly).
Motor Driver Short	History of malfunction (short) in steering lock ECU (steering lock actuator or upper bracket assembly) motor circuit (DTC B2781 is stored)	OK or NG(Past)	OK: History of short in the motor circuit does not exist NG(Past): History of short in the motor circuit exists	This item displays history of a malfunction in the steering lock motor circuit in the steering lock ECU (steering lock actuator or upper bracket assembly).
Lock/Unlock Receive	History of receiving an unlock request signal	No or Yes	No: History of receiving an unlock request signal does not exist Yes: History of receiving an unlock request signal exists	-
Lock Bar Stuck Error	History of steering not being able to unlock properly when steering lock operates for a certain period of time	OK or NG(Past)	OK: History of steering lock being stuck does not exist NG(Past): History of steering lock being stuck exists	-
ID-BOX Sleep Condition	ID code box (immobiliser code ECU) sleep mode status*8	No or Yes	No: ID code box (immobiliser code ECU) sleep mode not possible Yes: ID code box (immobiliser code ECU) sleep mode possible	-
ID-BOX Start Condition	ID code box (immobiliser code ECU) status*3	No or Yes	No: Wake-up signal not sent by ID code box (immobiliser code ECU) Yes: Wake-up signal sent by ID code box (immobiliser code ECU)	-
Engine Start Request	Status of engine start permission signal determined by steering lock ECU (steering lock actuator or upper bracket assembly) and sent to certification ECU (smart key ECU assembly)*8	OK or NG	OK: Signal received NG: Signal not received	When OK is displayed, the ID code box (immobiliser code ECU) receives an unlock confirmation signal from the steering lock ECU (steering lock actuator or upper bracket assembly) and engine starting possible. The engine cannot be started when NG is displayed.
3bit Code Request	3-bit code request condition	OK or NG	OK: 3-bit code request condition signal received NG: 3-bit code request condition signal not received	-
S Code Check	Verification result between certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU)*5	OK or NG	OK: Verification result normal NG: Verification result abnormal	When NG is displayed: The ID code for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU) is not registered, or the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU) is malfunctioning. The steering cannot be locked. The steering cannot be unlocked (the engine cannot be started).
L Code Check	Verification result between ID code box (immobiliser code ECU) and steering lock ECU (steering lock actuator or upper bracket assembly)*6	OK or NG	OK: Verification result normal NG: Verification result abnormal	When NG is displayed: The ID code for the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator or upper bracket assembly) is not registered, or the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator or upper bracket assembly) is malfunctioning. The steering cannot be locked. The steering cannot be unlocked (the engine cannot be started).
Unlock Request Receive	Status of steering unlock command from certification ECU (smart key ECU assembly)7,9	OK or NG	OK: Certification ECU (smart key ECU assembly) sends steering unlock command (within 10 seconds of engine switch turned on (ACC) or on (IG), or of engine start operation performed) NG: Certification ECU (smart key ECU assembly) does not send steering unlock command (engine switch not turned on (ACC) or on (IG), and engine start operation not performed)	The engine cannot be started when an unlock request signal cannot be received. If OK is not displayed even though the steering unlock conditions are met, the certification ECU (smart key ECU assembly) may be malfunctioning.
Lock Request Receive	Status of steering lock command from certification ECU (smart key ECU assembly)8,9	OK or NG	OK: Certification ECU (smart key ECU assembly) sends steering lock command (within 10 seconds of any door opened with shift lever in P and engine switch off) NG: Certification ECU (smart key ECU assembly) does not send steering lock command (no door opened with shift lever in P and engine switch off)	If OK is not displayed even though the steering lock conditions are met, the certification ECU (smart key ECU assembly) may be malfunctioning.
S Code Check(Past)	Verification result history between the certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU)	OK or NG(Past)	OK: History of abnormal verification result does not exist NG(Past): History of abnormal verification result exists	-
L Code Check(Past)	Verification result history between the ID code box (immobiliser code ECU) and steering lock ECU (steering lock actuator or upper bracket assembly)	OK or NG(Past)	OK: History of abnormal verification result does not exist NG(Past): History of abnormal verification result exists	-
Steering Lock	Steering lock ECU (steering lock actuator or upper bracket assembly) lock confirmation status	Unset or Set	Unset: Lock not confirmed Set: Lock confirmed	When Unset is displayed, the steering is not locked.
Steering Unlock	Steering lock ECU (steering lock actuator or upper bracket assembly) unlock confirmation status	Unset or Set	Unset: Unlock not confirmed Set: Unlock confirmed	When Unset is displayed, the steering is not unlocked (the engine cannot be started).
EFI Code Receive	Certification information sent to ID code box (immobiliser code ECU) from ECM when ECM receives engine start permission signal from ID code box (immobiliser code ECU)4,9	OK or NG	OK: Signal from ECM to unset immobiliser received by ID code box (immobiliser code ECU) NG: Signal from ECM to unset immobiliser not received by ID code box (immobiliser code ECU)	-
EFI Communication	State of communication to unset immobiliser between certification ECU (smart key ECU assembly) and ECM	OK or NG	OK: Communication to unset immobiliser has started between certification ECU (smart key ECU assembly) and ECM NG: Communication to unset immobiliser has not started between certification ECU (smart key ECU assembly) and ECM	If this item displays "NG" even though the conditions to unset the immobiliser have been met and the value of Data List item "Engine Start Request" is "OK", the ECM may be malfunctioning. When the engine cannot be started, use this Data List item during troubleshooting.
R Code Check	Verification result between the DCM (telephone transceiver) and ID code box (immobiliser code ECU)*	OK or NG	OK: Verification result normal NG: Verification result abnormal	-
B Code Difference	B code mismatch	No or Yes	No: Communication normal Yes: Communication malfunction	-
B Code	B code registration status	No Regd or Regd	No Regd: B code not registered correctly Regd: B code registered correctly	-
Vehicle ID (Key Registration)	Status of vehicle ID (key registration)	OK or NG	OK: Vehicle ID registered to key NG: Vehicle ID not registered to key	-
Key Registration Status	Status of key registration	OK or NG	OK: Key registration was completed normally NG: Key registration was not completed normally	-
S/L Code Registration Status	Status of L code registration	OK or NG	OK: L code registration was completed normally NG: L code registration was not completed normally	-
Key Low Battery Warning	Low transmitter battery warning	OFF or ON	Customize setting displayed	-
Key Left in Vehicle Buz	Key left in vehicle buzzer	OFF or ON	Customize setting displayed	-
Engine Start Indicator	Key indicator display	OFF or ON	Customize setting displayed	-
Number of Registered Key Codes	Number of registered electrical key transmitter sub-assemblies	0 to 8	Number of registered electrical key transmitter sub-assemblies	Up to 7 electrical key transmitter sub-assemblies can be registered.
Open in IG2	History of IG2 input of the steering lock ECU (steering lock actuator or upper bracket assembly)	OK or NG(Past)	OK: History of open in IG2 terminal circuit exists NG(Past): No history of open in IG2 terminal circuit exists	When OK is displayed, the steering lock ECU (steering lock actuator or upper bracket assembly) has an IG2 input circuit malfunction.
EFI Communication Code Status	Status of EFI communication code	OK or NG	OK: Signal from ECM was correct NG: Signal from ECM was incorrect	-
EFI Communication Status	Status of EFI communication	OK or NG	OK: Communication normal between certification ECU (smart key ECU assembly) and ECM NG: Communication malfunction between certification ECU (smart key ECU assembly) and ECM	-
EFI Communication Speed	Status of EFI communication speed	OK or NG	OK: Communication speed normal NG: Communication speed abnormal	-
ID-Box Wait Status	Wait status of ID code box	OFF or ON	OFF: ID code box not waiting ON: ID code box waiting	-

*: for Lexus Enform

HINT:

*1: This indicates that there is a problem with the communication format between the electrical key transmitter sub-assembly and certification ECU (smart key ECU assembly). Wave interference, malfunction of the electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly), an electrical key transmitter sub-assembly from different vehicle being used, etc. are possible causes.
*2: Engine start is permitted when it is confirmed that the steering is unlocked and the steering lock function is not malfunctioning. If engine start is not permitted, a steering lock ECU (steering lock actuator or upper bracket assembly) malfunction (relay, driver, etc.), an IGE circuit malfunction (wire harness or connector, ID code box (immobiliser code ECU)), or a steering lock sensor malfunction are possible causes.
*3: This indicates that transmission of the wake-up signal is possible ("Yes" indicates that the signal to begin verification-related LIN communication is being sent). When the steering lock motor is operating and an IGE ON signal is received (there is a steering lock operation request), or when communication is being performed between the certification ECU (smart key ECU assembly) and ECM, the display changes to "Yes".
*4: This indicates that the engine start permission request signal (EGST) output from the ECM is being received by the ID code box (immobiliser code ECU).
*5: This indicates the certification result of the certification codes of the certification ECU (smart key ECU assembly) and ID code box (immobiliser code ECU).
*6: This indicates the certification result of the certification codes of the ID code box (immobiliser code ECU) and steering lock ECU (steering lock actuator or upper bracket assembly).
When the steering lock ECU (steering lock actuator or upper bracket assembly) receives an unlock request from the certification ECU (smart key ECU assembly), confirmation of the ID code box (immobiliser code ECU) L code is performed. If the L code matches, the steering lock ECU (steering lock actuator or upper bracket assembly) unlocks the steering.
*7: The certification ECU (smart key ECU assembly) outputs a steering unlock request for 10 seconds after the engine switch is turned on (ACC) or on (IG), or a ECM start operation is performed.
*8: The certification ECU (smart key ECU assembly) outputs a steering lock request for 10 seconds after the engine switch is turned off and any door is opened with the shift lever in P.

*9: Refer to the following Data List items when inspecting the actual vehicle.

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

*1: Press the engine switch with the brake pedal released and check that the engine switch turns on (ACC).
*2: Press the engine switch with the brake pedal released and check that the engine switch turns on (IG).
*3: Press the engine switch with the brake pedal released and check that the engine starts.
*4: Press the engine switch and check that the engine switch turns off.
*5: Open the driver side door and check that the steering locks.

Unlock operation conditions for the steering lock:
When the following condition is met, the unlock operation is performed.
1. The engine switch is on (ACC) or on (IG).
  1. When the engine switch is turned on (ACC) or on (IG) and the key and certification ECU (smart key ECU assembly) are verified, the steering is unlocked.
2. When any of the following conditions are met, key verification is performed.
  1. The brake pedal is depressed so that the engine can be started.
  2. 30 seconds have elapsed after opening and closing a door.
  3. The engine switch is pressed.
Lock operation conditions for the steering:
When the following conditions are met and the certification ECU (smart key ECU assembly) has been verified, the lock operation is performed.
1. The engine switch is off.
2. The shift lever is in P.
3. A door is opened or a door lock operation (door lock, wireless door lock or key-linked lock) is performed.

Body Electrical > Starting Control > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Starter SW	Starter operation request	OFF or ON	OFF: Starter operation not requested ON: Starter operation requested	When OFF is displayed, the engine will not crank.
Shift Position P or N	Park/Neutral position switch status	OFF or ON	OFF: Shift lever not in P or N ON: Shift lever in P or N	When OFF is displayed, the engine will not crank.
Starter Relay	Starter relay voltage monitor	OFF or ON	OFF: ST NO. 1 relay off ON: ST NO. 1 relay on	When OFF is displayed, the engine cannot be cranked.
Starting Control SW	Starter request signal monitor	OFF or ON	OFF: Starting control switch off ON: Starting control switch on	When OFF is displayed, the engine cannot be cranked.
Ignition	IG2 status	OFF or ON	OFF: IG2 relay off ON: IG2 relay on	-
Engine Speed	Engine speed	0 to 16383 rpm	Fluctuates in accordance with actual engine speed	-
Number of DTCs	Number of DTCs	0 to 255	-	-

Courtesy of © TOYOTA, LICENSE AGREEMENT TMS1002

HINT:

*: With the engine switch on (IG), the shift lever in P and the brake pedal depressed, press the engine switch and check that the engine starts.

Body Electrical > Combination Meter > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Vehicle Speed Meter	Vehicle speed	Min.: 0, Max.: 255	Almost same as actual vehicle speed (Speedometer tester)	-

Body Electrical > Main Body > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
FL Door Courtesy SW	Front door LH courtesy light switch signal	OFF or ON	OFF: Front door LH closed ON: Front door LH open	-

Enter the following menus: Powertrain / Engine / Data List.

Read the Data List according to the display on the Techstream.

Powertrain > Engine > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Stop Light SW	Brake pedal signal	OFF or ON	OFF: Brake pedal released ON: Brake pedal depressed	-
Immobiliser Fuel Cut Status	Status of immobiliser fuel cut	OFF or ON	OFF: Fuel cut off ON: Fuel cut on	-

ACTIVE TEST

HINT:

Using the Techstream to perform Active Tests allows relays, 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 engine switch on (IG).
Turn the Techstream on.
Enter the following menus: Body Electrical / (desired system) / Active Test.

Perform Active Test according to the display on the Techstream.

Body Electrical > Smart Access > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Immobiliser Indicator	Security indicator light	OFF/ON	-

Body Electrical > Power Source Control > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
P Supply for Steering Lock	Certification ECU (smart key ECU assembly)	OFF/ON HINT: OFF: Power is not supplied. ON: Power is supplied.	When performing this Active Test, make sure the following condition is met: The engine switch is on (IG).

Body Electrical > Starting Control > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Activate the Starter Relay	ST NO. 1 relay	OFF/ON	When performing this Active Test, make sure the following conditions are met: The electrical key transmitter sub-assembly is in the cabin and the engine is stopped.