Lexus NX: Fail-safe Chart
FAIL-SAFE CHART
FAIL-SAFE FUNCTION
(a) Headlight ECU sub-assembly
(1) The headlight ECU sub-assembly stops light operation if the following malfunctions are detected.
| Malfunction | Multi-information Display Warning | DTC Output | ||
|---|---|---|---|---|
| Lighting on/off | LED light source malfunction | Low beam | Displayed | Output |
| High beam | Not Displayed | Output | ||
| Fan malfunction | Displayed | Output | ||
| Other than above (communication with main body ECU (multiplex network body ECU)) | Displayed | Output | ||
| Automatic headlight beam level control system | Displayed | Output | ||
| AFS (adaptive front-lighting system)* | Displayed | Output | ||
| Power supply | IG voltage line malfunction | Displayed | Output | |
| Other than an IG voltage line malfunction | Not displayed | Not output | ||
- *: w/ AFS (Adaptive Front-lighting System)
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Freeze Frame Data
FREEZE FRAME DATA FREEZE FRAME DATA (a) Whenever an automatic headlight beam level control system DTC is stored, the headlight ECU subassembly LH stores the current vehicle state as freeze frame data.
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 faul
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Automatic Headlight Beam Level Control System (for Triple Beam Headlight) DTC No. Detection Item Link B2410 Headlight Swivel Motor LH Communication Malfuncti
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Parts Location
PARTS LOCATION ILLUSTRATION *1 FRONT DOOR COURTESY LIGHT SWITCH ASSEMBLY LH *2 MAP LIGHT ASSEMBLY *3 SLIDE ROOF SWITCH *4 SLIDING ROOF DRIVE GEAR SUB-ASSEMBLY
- SLIDING ROOF ECU
- SLIDE MOTOR
*5 COMBINATION METER ASSEMBLY *6 INSTRUMENT PANEL JUNCTION BLOCK ASSEM
Removal
REMOVAL PROCEDURE 1. REMOVE REAR SEAT ASSEMBLY (a) for Manual Seat: Click here (b) for Power Seat: Click here 2. REMOVE REAR FLOOR FINISH PLATE Click here 3. DISCONNECT REAR DOOR OPENING TRIM WEATHERSTRIP RH Click here 4. REMOVE UPPER DECK TRIM SIDE BOARD RH Click here 5. REMOVE ROPE HO
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