Lexus NX: Fail-safe Chart
Lexus NX Service Manual / Vehicle Exterior / Lighting (ext) / Lighting System (for Triple Beam Headlight) / 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 | ||
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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 Lighting System (for Triple Beam Headlight) DTC No. Detection Item Link B1244 Light Sensor Circuit Malfunction B2414 Steering Position Sensor Malf
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
SEE MORE:
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. PRECAUTION NOTICE: After the power switch off is turned off, there may be a waiting time before disconnecting the auxiliary negative (-) battery t
Child safety
Riding with children
Observe the following precautions
when children are in the vehicle.
Use a child restraint system appropriate
for the child, until the child
becomes large enough to properly
wear the vehicle's seat belt.
It is recommended that children
sit in the rear seats to avoid
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