Lexus NX: Data List / Active Test
DATA LIST / ACTIVE TEST
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.
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.
DATA LIST
(a) Connect the Techstream to the DLC3.
(b) Turn the power switch on (IG).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / (desired system) / Data List / All Data.
(e) According to the display on the Techstream, read the Data List.
Body Electrical > Main Body > Data List| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| IG SW | Power switch on (IG) signal | ON or OFF | ON: Power switch on (IG) OFF: Power switch off | "OFF" is also displayed for this item when the power switch is on (ACC). |
| FR Door Courtesy SW | Front door courtesy light switch RH | ON or OFF | ON: Front door RH closed OFF: Front door RH open | - |
| Dimmer SW | Headlight dimmer switch high position signal | ON or OFF | ON: Headlight dimmer switch in high or high flash position OFF: Headlight dimmer switch except high or high flash position | - |
| Passing Light SW | Headlight dimmer switch high flash position (pass) signal | ON or OFF | ON: Headlight dimmer switch in high flash position OFF: Headlight dimmer switch not in high flash position | - |
| Front Fog Light SW | Front fog light switch signal | ON or OFF | ON: Front fog light switch on OFF: Front fog light switch off | - |
| Auto Light SW | Headlight dimmer switch AUTO position signal | ON or OFF | ON: Headlight dimmer switch in AUTO position OFF: Headlight dimmer switch not in AUTO position | - |
| Head Light SW (Head) | Headlight dimmer switch head position signal | ON or OFF | ON: Headlight dimmer switch in head position OFF: Headlight dimmer switch not in head position | - |
| Head Light SW (Tail) | Headlight dimmer switch tail position signal | ON or OFF | ON: Headlight dimmer switch in tail or head position OFF: Headlight dimmer switch in neither tail nor head position | - |
| Light Sensor Illuminance | Light control sensor illuminance | 0 to 17600 lx | Value is output according to ambient light level | - |
| Light Sensor Connection Status | Light control sensor connection status | ON or OFF | ON: Light control sensor is connected OFF: Light control sensor is not connected | - |
| Headlight Lighting Function | ECU which controls the lighting system | Main Body or Lighting Sys ECU | Customized setting displayed | - |
| Sensitivity | Sensitivity setting of automatic light control system | Normal, Dark2, Dark1, Light1 or Light2 | Customized setting displayed | - |
| DRL Function | Daytime running light function | ON or OFF | Customized setting displayed | - |
| Disp Ex ON Sen | Sets the display light (meter, audio, etc.) dim starting level | Normal, Dark2, Dark1, Light or Light2 | Customized setting displayed | - |
| Disp Ex OFF Sen | Sets the display light (meter, audio, etc.) dim return level | Normal, Dark2, Dark1, Light or Light2 | Customized setting displayed | - |
| Light Auto OFF Delay | Light auto OFF delay | Off, 30 s, 60 s, or 90 s | Customized setting displayed | - |
| Light up Clearance Lights at Door Unlock Function | Welcome lighting system | ON or OFF | Customized setting displayed | - |
| The Number of DTC | Number of trouble codes | 0 to 255 | Condition can be displayed | - |
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Turn Signal Switch (Right) | Turn signal switch (right) signal | ON or OFF | ON: Turn signal switch (right) on OFF: Turn signal switch (right) off | - |
| Turn Signal Switch (Left) | Turn signal switch (left) signal | ON or OFF | ON: Turn signal switch (left) on OFF: Turn signal switch (left) off | - |
| Hazard Flasher Switch | Hazard switch signal | ON or OFF | ON: Hazard switch on OFF: Hazard switch off | - |
| Tester Display | Measurement Item | Range | Normal Condition | Diagnostic Note |
|---|---|---|---|---|
| Total Distance Traveled | Actual driving distance | 0 to 16777215 | Roughly the same as the actual driving distance | - |
| Total Distance Traveled - Unit | Actual driving distance unit | km or mile | Displays the current actual driving distance unit | - |
| AHB/AHS Information | Lighting system state | unknown, AHB or AHS | Displays lighting system state | - |
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).
(c) Turn the Techstream on.
(d) Enter the following menus: Body Electrical / (desired system) / Active Test.
(e) According to the display on the Techstream, perform the Active Test.
Body Electrical > Main Body > Active Test| Tester Display | Measurement Item | Control Range | Diagnostic Note |
|---|---|---|---|
| Daytime Running Light | Daytime running light | ON or OFF | - |
| Taillight Relay | Taillight relay | ON or OFF | - |
| Headlight Relay | Low beam headlight relay | ON or OFF | - |
| Head Light Hi | Headlight dimmer relay | ON or OFF | - |
| Front Fog Light Relay | Front fog light relay | ON or OFF | The headlight dimmer switch is in the tail position. |
READ NEXT:
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Lighting System DTC No. Detection Item Link B1244 Light Sensor Circuit Malfunction B2430 LED Headlight LH Circuit Malfunction B2431 LED
Vehicle Control History
VEHICLE CONTROL HISTORY CHECK THE VEHICLE CONTROL HISTORY (LIGHTING SYSTEM) HINT:
The vehicle control history data (lighting system) stores the history of the reject function and system protection
Light Sensor Circuit Malfunction (B1244)
DESCRIPTION The automatic light control sensor detects ambient light, converts it into an electrical signal and outputs it to the main body ECU (multiplex network body ECU). The main body ECU (multipl
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Installation
INSTALLATION PROCEDURE 1. INSTALL BACK DOOR OPENER SWITCH ASSEMBLY (a) Connect the connector. (b) Install the back door opener switch assembly. 2. INSTALL BACK DOOR OUTSIDE GARNISH SUB-ASSEMBLY Click here 3. INSTALL BACK DOOR TRIM BOARD ASSEMBLY Click here 4. INSTALL BACK DOOR LOCK COVER (w/ P
Removal
REMOVAL CAUTION / NOTICE / HINT HINT:
Use the same procedure for the RH and LH sides.
The procedure listed below is for the LH side.
PROCEDURE 1. REMOVE OUTER MIRROR LH (a) Push the upper part of the mirror surface and tilt it. (b) Apply protective tape to the areas shown in the illustrat
