Data List / Active Test

WARNING: This page is about a different car, the 2010 Lexus GS 450h. However, it is still accessible from the selected car via links, so may be relevant.

READ DATA LIST

HINT:

Using the Techstream DATA LIST allows switch, actuator and other item values to be read without removing any parts. Reading the DATA LIST early in troubleshooting is one way to save time.

Connect the Techstream to the DLC3.
Turn the power 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.

COMBINATION SWITCH (WINDSHIELD WIPER SWITCH ASSEMBLY)

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Front Fog Light Switch	Front fog light switch signal / ON or OFF	ON: Front fog light switch is in ON position OFF: Front fog light switch is not in ON position	-
Passing Light Switch	Passing light switch signal / ON or OFF	ON: Headlight dimmer switch is in FLASH position OFF: Headlight dimmer switch is not in FLASH position	-
Dimmer Hi Switch	High beam switch signal / ON or OFF	ON: Headlight dimmer switch is in HI position OFF: Headlight dimmer switch is not in HI position	-
Light Auto Switch	Auto Light switch signal / ON or OFF	ON: Light control switch is in AUTO position OFF: Light control switch is not in AUTO position	-
Head Light Switch	Headlight control switch signal / ON or OFF	ON: Light control switch is in HEAD position OFF: Light control switch is not in HEAD position	-
Tail Light Switch	Taillight switch signal / ON or OFF	ON: Light control switch is in TAIL or HEAD position OFF: Light control switch is not in OFF position	-
Turn Left Switch	Turn signal switch LH signal / ON or OFF	ON: Light control switch is in LH position OFF: Light control switch is not in LH position	-
Turn Right Switch	Turn signal switch RH signal / ON or OFF	ON: Light control switch is in RH position OFF: Light control switch is not in RH position	-
Ignition Switch Signal	Power switch signal / ON or OFF	ON: Power switch on (IG) OFF: Power switch off	-

BODY (MAIN BODY ECU RH)

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
ACC SW	Power switch on (ACC) / on (IG) or off	ON: Power switch on (ACC) OFF: Power switch off	-
IG SW	Power switch / on (IG) or OFF	ON: Power switch on (IG) OFF: Power switch off	-
Head Light SW (Head)	Headlight control switch / ON or OFF	ON: Light control switch in HEAD position OFF: Light control switch is not in HEAD position	-
D Door Courtesy SW	Driver side courtesy SW / ON or OFF	ON: Driver side door is open OFF: Driver side door is closed	-
P Door Courtesy SW	Passenger side courtesy SW / ON or OFF	ON: Passenger side door is open OFF: Passenger side door is closed	-
Rr Door Courtesy SW	Rear (LH or RH) courtesy SW / ON or OFF	ON: Rear door (LH or RH) is open OFF: Rear door (LH or RH) is closed	-
Illumination Rate Info	Illumination information	Condition value will be displayed	-

BODY NO. 3 (MAIN BODY ECU LH)

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Light H-Level Warning Signal	Light H-level / ON or OFF	ON: Headlight leveling warning ON OFF: Headlight leveling warning OFF	-
IG SW	Power switch / ON or OFF	ON: Power switch on (IG) OFF: Power switch off	-
Luggage Courtesy Switch	Luggage courtesy / ON or OFF	ON: Luggage room door is opened OFF: Luggage room door is closed	-

BODY NO. 4 (REAR MULTIPLEX NETWORK ECU)

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Tail Light Tr	Taillight Transistor / ON or OFF	ON: Light control switch TAIL or HEAD position OFF: Light control switch other than HEAD position	-
Stop Light Switch	Stop light switch / ON or OFF	ON: Brake pedal depressed OFF: Brake pedal released	-
Stop Light Tr.	Stop light Transistor / ON or BREAK	ON: Brake pedal depressed BREAK: Brake pedal released	-
License Light Tr	License LGT Transistor / ON or BREAK	ON: Light control switch TAIL position BREAK: Light control switch other than HEAD position	-
High Mount Stop Light Tr.	High mount stop light Transistor / ON or BREAK	ON: Brake pedal depressed BREAK: Brake pedal released	-
IG SW	Power switch / ON or OFF	ON: Power switch on (IG) OFF: Power switch off	-

PASSENGER DOOR (FRONT MULTIPLEX NETWORK DOOR ECU RH)

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Door Unlock Detection Switch	Door unlock detection switch / ON or OFF	ON: Door is unlocked OFF: Door is locked	-

REAR RIGHT DOOR (REAR MULTIPLEX NETWORK DOOR ECU RH)

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Door Unlock Detection Switch	Door unlock detection switch / ON or OFF	ON: Door is unlocked OFF: Door is locked	-

REAR LEFT DOOR (REAR MULTIPLEX NETWORK DOOR ECU LH)

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
Door Unlock Detection Switch	Door unlock detection switch / ON or OFF	ON: Door is unlocked OFF: Door is locked	-

AFS (AFS ECU)

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
AFS OFF Switch	ASF OFF switch / ON or OFF	ON: AFS switch ON OFF: AFS switch OFF	-
Transmission Pos R Signal	Transmission position R signal / ON or OFF	ON: Shift position is R OFF: Shift position is not R	-
Transmission Pos N Signal	Transmission position N signal/ ON or OFF	ON: Shift position is N OFF: Shift position is not N	-
Generator Signal	Generator signal / ON or OFF	ON: Engine running OFF: Engine stopped	-
Headlamp Signal	Headlight signal / ON or OFF	ON: Light control switch is in HEAD position OFF: Light control switch is not in HEAD	-
Headlamp Auto Signal	Headlight signal / ON or OFF	ON: Automatic light control system is operated OFF: Automatic light control system is stopped	-
+B	Battery voltage value / 0 to 20	Condition sign can be displayed	-
Height Sens Pw Supply Val	Height sensor power supply value / 0 to 5	Condition sign can be displayed	-
Fr Height Sens Signal Val	Front height sensor signal value / 0 to 5	Condition sign can be displayed	-
Rr Height Sens Signal Val	Rear height sensor signal value / 0 to 5	Condition sign can be displayed	-
Steering Sens Signal	Steering sensor signal / -384° to 382.°	Condition sign can be displayed	-
Steering Sens Center Pos	Steering sensor center position / - 307.2° to 307.5°	Condition sign can be displayed	-
L Swivel Motor Pos Sens Val	Left swivel motor position sensor value / 0 to 5	Condition sign can be displayed	-
R Swivel Motor Pos Sens Val	Right swivel motor position sensor value / 0 to 5	Condition sign can be displayed	-

D-SEAT SW (INTEGRATION CONTROL AND PANEL)

Tester Display	Measurement Item/Range	Normal Condition	Diagnostic Note
AFS OFF SW	AFS off switch / ON or OFF	ON: AFS switch ON OFF: AFS switch OFF	-
Tail Cancel SW	Tail cancel switch / ON or OFF	ON: Tail cancel switch ON OFF: Tail cancel switch OFF	-

PERFORM ACTIVE TEST

HINT:

Performing the Techstream ACTIVE TEST allows relay, VSV, actuator, and other items to be operated without removing any parts. Performing the ACTIVE TEST early in troubleshooting is one way to save time. The DATA LIST can be displayed during the ACTIVE TEST.

Connect the Techstream to the LDC3.
Turn the power switch on (IG).

Perform the ACTIVE TEST according to the display on the tester.

BODY NO. 5 (FRONT LIGHT ECU)

Tester Display	Test Part	Control Range	Diagnostic Note
Light Head (High)	Headlight (High)	ON / OFF	-
Front Fog Light Relay	Front fog light relay	ON / OFF	-
Light Head HI DRL Operation	Light head hi DRL operation	ON / OFF	-
Clearance Light Operation	Clearance light	ON / OFF	-
Cornering Light RH Operation	Clearance light RH operation	ON / OFF	-
Cornering Light LH Operation	Clearance light LH operation	ON / OFF	-