Lexus NX: Data List / Active Test

Lexus NX Service Manual / Vehicle Interior / Theft Deterrent / Keyless Entry / Smart Access System With Push-button Start (for Entry Function) / Data List / Active Test

DATA LIST / ACTIVE TEST

DATA LIST

NOTICE:

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.
When using the Techstream with the power 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 Access. 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.

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.

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(d) Enter the following menus: Body Electrical / Smart Access, Main Body, Power Source Control or Combination Meter / Data List.

(e) Read the Data List according to the display on the Techstream.

Body Electrical > Smart Access > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
D-Door Touch Sensor	Driver door touch sensor (unlock sensor)*	ON or OFF	ON: Driver door touch sensor (unlock sensor) touched OFF: Driver door touch sensor (unlock sensor) not touched	Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.
P-Door Touch Sensor	Front passenger door touch sensor (unlock sensor)*	ON or OFF	ON: Front passenger door touch sensor (unlock sensor) touched OFF: Front passenger door touch sensor (unlock sensor) not touched	Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.
Dr-Door Touch Sensor	Rear door LH touch sensor (unlock sensor)*	ON or OFF	ON: Rear door LH touch sensor (unlock sensor) touched OFF: Rear door LH touch sensor (unlock sensor) not touched	Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.
Pr-Door Touch Sensor	Rear door RH touch sensor (unlock sensor)*	ON or OFF	ON: Rear door RH touch sensor (unlock sensor) touched OFF: Rear door RH touch sensor (unlock sensor) not touched	Displays whether the unlock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is an unlock sensor malfunction when the entry unlock function does not operate.
D-Door Trigger Switch	Driver door touch sensor (lock sensor)*	ON or OFF	ON: Driver door touch sensor (lock sensor) touched OFF: Driver door touch sensor (lock sensor) not touched	Displays whether the lock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is a lock sensor malfunction when the entry lock function does not operate.
P-Door Trigger Switch	Front passenger door touch sensor (lock sensor)*	ON or OFF	ON: Front passenger door touch sensor (lock sensor) touched OFF: Front passenger door touch sensor (lock sensor) not touched	Displays whether the lock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is a lock sensor malfunction when the entry lock function does not operate.
Dr-Door Trigger Switch	Rear door LH touch sensor (lock sensor)*	ON or OFF	ON: Rear door LH touch sensor (lock sensor) touched OFF: Rear door LH touch sensor (lock sensor) not touched	Displays whether the lock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is a lock sensor malfunction when the entry lock function does not operate.
Pr-Door Trigger Switch	Rear door RH touch sensor (lock sensor)*	ON or OFF	ON: Rear door RH touch sensor (lock sensor) touched OFF: Rear door RH touch sensor (lock sensor) not touched	Displays whether the lock sensor is on or off (even if the sensor is touched and contact is maintained, "ON" is displayed only momentarily). Use this Data List item to help determine if there is a lock sensor malfunction when the entry lock function does not operate.
Tr/B-Door Lock SW	Back door opener switch assembly (lock switch)	ON or OFF	ON: Back door opener switch assembly (lock switch) pressed OFF: Back door opener switch assembly (lock switch) not pressed	Displays whether the back door opener switch assembly (lock switch) is on or off. Use this Data List item to help determine if there is a switch malfunction when the back door lock function does not operate.
Tr/B-Door Unlock SW	Back door opener switch assembly (open switch)	ON or OFF	ON: Back door opener switch assembly (open switch) pressed OFF: Back door opener switch assembly (open switch) not pressed	Displays whether the back door opener switch assembly (open switch) is on or off. Use this Data List item to help determine if there is a switch malfunction when the back door open function does not operate.
Unmatched Vehicle-ID	Key No. (incorrect or correct)	Yes or No	Yes: Communication malfunction No: Communication normal	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	Yes or No	Yes: Communication malfunction No: Communication normal	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 power 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.
Unmatch Code or Form	Code format (incorrect or correct)	Yes or No	Yes: Communication malfunction No: Communication normal	There is an error in the data sent from the electrical key transmitter sub-assembly (if there is wave interference in the RF band that the electrical key transmitter sub-assembly uses for transmission, "Yes" may be displayed for "Unmatch Code or Form", "No Response", "ID Code Difference(Resp)" and "C Code Difference" in the Data List). Other potential causes: An electrical key transmitter sub-assembly from a different manufacturer is being used. The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning.
Key Low Battery	Transmitter battery depleted	Yes or No	Yes: Transmitter battery depleted No: Transmitter battery not depleted	The electrical key transmitter sub-assembly sends voltage information to the certification ECU (smart key ECU assembly) when it is transmitting. The certification ECU (smart key ECU assembly) displays "Yes" for the "Key Low Battery" item of the Data List when this voltage information indicates 2.2 V or less. 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).
Power Save Cnt 10 Min.	Number of times power saving control is activated due to electrical key transmitter sub-assembly being in detection area for 10 minutes or more	0 to 255	Within range of 0 to 255	If the electrical key transmitter sub-assembly is in a vehicle exterior detection area, communication is frequently performed between the vehicle and electrical key transmitter sub-assembly, resulting in an increase in transmitter battery power consumption. To prevent the transmitter battery from becoming fully depleted, if the electrical key transmitter sub-assembly is left in the detection area for 10 minutes or more, the smart access system with push-button start automatically deactivates the exterior detection area the electrical key transmitter sub-assembly is in. If the doors are locked/unlocked with a wireless operation or by the mechanical key, the system resumes operation.
Power Save Cnt 5 Days	Number of times power saving control 1 (vehicle exterior periodic signal transmission stop) is activated due to hybrid control system not being started for 5 days or more	0 to 255	Within range of 0 to 255	-
Power Save Cnt 14 Days	Number of times power saving control 2 (lock/unlock sensor of front door outside handle assembly of front passenger door disabled) is activated due to hybrid control system not being started for 14 days or more	0 to 255	Within range of 0 to 255	-
# Codes	Number of trouble codes	0 to 255	Number of stored DTCs displayed	-
ID Code Difference(Resp)	ID code (incorrect or correct)	Yes or No	Yes: Communication malfunction No: Communication normal	The ID code registered in the vehicle and the ID code registered in the electrical key transmitter sub-assembly are different (if there is wave interference in the RF band that the electrical key transmitter sub-assembly uses for transmission, "Yes" may be displayed for "Unmatch Code or Form", "No Response", "ID Code Difference(Resp)" and "C Code Difference" 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.
C Code Difference	Challenge code (incorrect or correct)	Yes or No	Yes: Communication malfunction No: Communication normal	The electrical key transmitter sub-assembly sends a response code in response to the challenge code from the vehicle, but the response code is incorrect (if there is wave interference in the RF band that the electrical key transmitter sub-assembly uses for transmission, "Yes" may be displayed for "Unmatch Code or Form", "No Response", "ID Code Difference(Resp)" and "C Code Difference" in the Data List). Other potential causes: The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning.
ID Code Difference	Wireless ID code (incorrect or correct)	Yes or No	Yes: Communication malfunction No: Communication normal	The ID code registered in the vehicle and the ID code registered in the electrical key transmitter sub-assembly are different. (If a wireless ID other than those for any of the registered electrical key transmitter sub-assemblies is detected, "Yes" is displayed for "ID Code Difference" in the Data List. If a wireless signal from the electrical key transmitter sub-assembly of another vehicle is detected, "Yes" is displayed for "ID Code Difference(Resp)" 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 external noise (RF). The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning.
Immobiliser	Immobiliser system status determined by certification ECU	Set or Unset	Set: Immobiliser set (hybrid control system start prohibited) (power switch off) Unset: Immobiliser unset (hybrid control system start permitted) (power switch on (ACC) or on (IG))	When the immobiliser system does not change to the unset state, this item can be used to determine if the cause is the certification ECU or ID code box.
Different Rolling Code	Rolling code (incorrect or correct)	Yes or No	Yes: Communication malfunction No: Communication normal	The rolling code registered in the vehicle and the rolling code registered in the electrical key transmitter sub-assembly are different Other potential causes: An electrical key transmitter sub-assembly switch is pressed 100 times or more in a location where the radio waves cannot reach the vehicle. A communication error due to external noise (RF). The electrical key transmitter sub-assembly or certification ECU (smart key ECU assembly) is malfunctioning.
S Code Check	S code verification result	OK or NG	OK: S code verification result normal NG: S code verification result abnormal	Problems may be caused by the following: Registration has not been performed for the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU). Malfunctions in the certification ECU (smart key ECU assembly) or ID code box (immobiliser code ECU).
L Code Check	L code verification result	OK or NG	OK: L code verification result normal NG: L code verification result abnormal	Problems may be caused by the following: Registration has not been performed for the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator assembly). Malfunctions in the ID code box (immobiliser code ECU) or steering lock ECU (steering lock actuator assembly).
Unlock Request Receive	Status of steering unlock command from certification ECU (smart key ECU assembly)	OK or NG	OK: Certification ECU (smart key ECU assembly) sends steering unlock command (within 10 seconds of power switch turned on (ACC) or on (IG), or hybrid control system start operation performed) NG: Certification ECU (smart key ECU assembly) does not send steering unlock command (power switch not turned on (ACC) or on (IG), and hybrid control system start operation not performed)	-
Lock Request Receive	Status of steering lock command from certification ECU (smart key ECU assembly)	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 power switch off) NG: Certification ECU (smart key ECU assembly) does not send steering lock command (no door opened with shift lever in P and power switch off)	-
S Code Check(Past)	S code verification result (past)	OK or NG(Past)	OK: Verification result normal (past) NG(Past): Verification result abnormal (past)	-
L Code Check(Past)	L code verification result (past)	OK or NG(Past)	OK: Verification confirmed (past) NG(Past): Verification not confirmed (past)	-
Steering Lock	State of whether steering lock ECU (steering lock actuator assembly) has determined steering is locked	Set or Unset	Set: Steering locked Unset: Steering unlocked	If this item displays "Unset", the steering is not locked.
Steering Unlock	State of whether steering lock ECU (steering lock actuator assembly) determined steering is unlocked	Set or Unset	Set: Steering unlocked Unset: Steering locked	If this item displays "Unset", the steering is not unlocked (hybrid control system cannot be started).
B Code Difference	B code mismatch	Yes or No	Yes: Communication malfunction No: Communication normal	-
B Code	B code registration status	Regd or No Regd	Regd: B code registered correctly No Regd: B code not registered correctly	-
Door Unlock Mode2	Door unlock mode	All or Driver	Customization status displayed	-
Ignition Available Area	Ignition available area	Front or All	Customization status displayed	-
Parking Wait Time	Parking wait time	0.5s, 1.5s, 2.5s or 5s	Customization status displayed	-
B-Dr Opening Operation	Back door opening operation	Long,Twice or OFF	Customize setting status displayed	-
Touch Activation Over Threshold	Consecutive entry lock operation	Active or Not Active	Customization status displayed	-
Wireless Signal Encryption Support	Wireless signal encryption support	Yes or No	Yes: Wireless signal encryption supported No: Wireless signal encryption not supported	-
Key Low Battery Warning	Low transmitter battery warning	ON or OFF	Customization status displayed	-
Engine Start Indicator	Entry warning light lights	ON or OFF	Customization status displayed	-
Number of Registered Key Codes	Number of registered electrical key transmitter sub-assembly	0 to 8	Number of registered electrical key transmitter sub-assembly	Up to 7 electrical key transmitter sub-assemblies can be registered.
Short in Fr P Side Door Oscillators Circuit (Hist)	Short in front passenger door electrical key antenna circuit (history)	OK or NG(Hist)	OK: Front passenger door electrical key antenna circuit was normal NG(Hist): Front passenger door electrical key antenna circuit was abnormal	-
Short in D Side Door Oscillators Circuit (Hist)	Short in driver door electrical key antenna circuit (history)	OK or NG(Hist)	OK: Driver door electrical key antenna circuit was normal NG(Hist): Driver door electrical key antenna circuit was abnormal	-
Short in Front P Side Door Oscillators Circuit	Short in front passenger door electrical key antenna circuit	OK or NG	OK: Front passenger door electrical key antenna circuit is normal NG: Front passenger door electrical key antenna circuit is abnormal	-
Short in Driver Side Door Oscillators Circuit	Short in driver door electrical key antenna circuit	OK or NG	OK: Driver door electrical key antenna circuit is normal NG: Driver door electrical key antenna circuit is abnormal	-

*: Data from an actual vehicle provided for reference.

HINT:

*1: With power switch off, all doors closed, electrical key transmitter sub-assembly not inside vehicle and all doors locked, front door outside handle assembly (unlock sensor) touched.
*2: Approximately 150 ms
*3: With power switch off, all doors closed, electrical key transmitter sub-assembly not inside vehicle and all doors unlocked, front door outside handle assembly (lock sensor) touched.

Body Electrical > Main Body > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
ACC SW	Power switch status	ON or OFF	ON: Power switch on (ACC) OFF: Power switch off	"ON" is displayed even though the power switch is on (IG).
IG SW	Power switch status	ON or OFF	ON: Power switch on (IG) OFF: Power switch off	"OFF" is displayed even though the power switch is on (ACC).
RR Door Courtesy SW	Rear door RH courtesy light switch	ON or OFF	ON: Rear door RH open OFF: Rear door RH closed	-
RL Door Courtesy SW	Rear door LH courtesy light switch	ON or OFF	ON: Rear door LH open OFF: Rear door LH closed	-
Back Door Courtesy SW	Back door courtesy light switch	ON or OFF	ON: Back door open OFF: Back door closed	-
FR Door Lock Pos	Front door RH unlock detection switch signal	UNLOCK or LOCK	UNLOCK: Front door RH unlocked LOCK: Front door RH locked	-
FR Door Courtesy SW	Front door RH courtesy light switch signal	ON or OFF	ON: Front door RH open OFF: Front door RH closed	-
FL Door Lock Pos	Front door LH unlock detection switch signal	UNLOCK or LOCK	UNLOCK: Front door LH unlocked LOCK: Front door LH locked	-
FL Door Courtesy SW	Front door LH courtesy light switch signal	ON or OFF	ON: Front door LH open OFF: Front door LH closed	-
RR-Door Lock Pos SW	Rear door RH unlock detection switch signal	ON or OFF	ON: Rear door RH unlocked OFF: Rear door RH locked	-
RL-Door Lock Pos SW	Rear door LH unlock detection switch signal	ON or OFF	ON: Rear door LH unlocked OFF: Rear door LH locked	-
Wireless Control	Wireless door lock function	ON or OFF	Customization status displayed	-
Hazard Answer Back	Hazard answer-back of entry function	ON or OFF	Customization status displayed	-
Open Door Warning	Open door warning	ON or OFF	Customization status displayed	-
Auto Lock Time	Automatic lock time	30 s, 60 s or 120 s	Customization status displayed	-
Wirelss Buzzer Resp	Wireless buzzer answer-back of entry function	ON or OFF	Customization status displayed	-
Wireless Buzzer Vol	Wireless buzzer volume	Level7, Level6, Level5, Level4, Level3, Level2, Level1 or Level0	Customization status displayed	-

Body Electrical > Power Source Control > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Shift P Signal	Shift position P	ON or OFF	ON: Shift lever in P OFF: Shift lever not in P	Use this item to determine if the shift position switch is malfunctioning. The hybrid control system cannot be started when this item is OFF.
Steering Unlock Switch	State of steering unlock sensor signal output from steering lock actuator assembly	ON or OFF	ON: Steering unlocked OFF: Steering locked	When the shift lever is in P and the power switch is off, if any door is opened then closed, the steering is locked. When the key is in the cabin and the power switch is turned on (ACC) or on (IG), the steering unlocks. The hybrid control system cannot be started when the steering unlock sensor signal is OFF.
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 assembly 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	Power switch 1 status	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	Power switch 2 status	ON or OFF	ON: Power switch pressed OFF: Power switch not pressed	Backup for Start Switch 1. However, when the power switch is pressed and held, the control functions only when both Start Switch 1 and 2 are normal. Behaves the same way as Start Switch 1.
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: Power switch off (ACC and IG) ACC ON: Power switch on (ACC) IG ON: Power switch on (IG) ST ON: Sending hybrid control system start request signal	-

Body Electrical > Combination Meter > Data List

Tester Display	Measurement Item	Range	Normal Condition	Diagnostic Note
Vehicle Speed Meter	Vehicle speed	Min.: 0 km/h (0 mph), Max.: 255 km/h (158 mph)	Almost the same as actual vehicle speed	-

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.

(a) Connect the Techstream to the DLC3.

(b) Turn the power switch on (IG).

(d) Enter the following menus: Body Electrical / Smart Access or Main Body / Active Test.

(e) Perform Active Test according to the display on the Techstream.

Body Electrical > Smart Access > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Overhead Tuner Power Supply ON	Door control receiver	OFF/ON	-
Power for P-Seat Sens	Front door outside handle (for front passenger door)	OFF/ON	-
Power for DR-Seat Sens	Rear door outside handle LH	OFF/ON	-
Power for PR-Seat Sens	Rear door outside handle RH	OFF/ON	-
Multi Channel SW	Door control receiver	CH1/CH2	-

Body Electrical > Main Body > Active Test

Tester Display	Measurement Item	Control Range	Diagnostic Note
Door Lock	Door lock motor	OFF/Unlock/Lock	-
D-Door Unlock	Driver door lock motor	OFF/ON	-
Trunk and Back-Door Open	Back door lock motor	OFF/ON	-
Wireless Buzzer	Wireless door lock buzzer	OFF/ON	-

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