Lexus NX: Automatic Headlight Beam Level Control System (for Triple Beam Headlight)
Lexus NX Service Manual / Vehicle Exterior / Lighting (ext) / Automatic Headlight Beam Level Control System (for Triple Beam Headlight)
- Parts Location
- System Diagram
- System Description
- How To Proceed With Troubleshooting
- Initialization
- Problem Symptoms Table
- Terminals Of Ecu
- Diagnosis System
- Dtc Check / Clear
- Fail-safe Chart
- Freeze Frame Data
- Data List / Active Test
- Diagnostic Trouble Code Chart
- Vehicle Speed Sensor Malfunction (B2415)
- Height Control Sensor Malfunction (B2416,B241A)
- Headlight Beam Level Control Motor LH Malfunction (B2417,B2418)
- Headlight Leveling Motor LH Communication Malfunction (B2424,B2410,B2411,B2425)
- Initialization has not been Performed (B2450)
- Height Control Sensor Data Out of Range When Initializing (B2452)
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Parts Location
PARTS LOCATION ILLUSTRATION *1 REAR HEIGHT CONTROL SENSOR SUB-ASSEMBLY LH *2 BRAKE BOOSTER WITH MASTER CYLINDER ASSEMBLY (SKID CONTROL ECU) *3 HEADLIGHT ASSEMBLY LH - HEADLIGHT ECU SUB
System Diagram
SYSTEM DIAGRAM
System Description
SYSTEM DESCRIPTION AUTOMATIC HEADLIGHT BEAM LEVEL CONTROL (a) General The automatic headlight beam level control system ensures forward visibility and prevents dazzling of drivers in oncoming and prec
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Fail-safe Chart
FAIL-SAFE CHART FAIL-SAFE FUNCTION (a) When a malfunction occurs in the road sign assist system, a message will be displayed on the multi-information display and the road sign assist system will be disabled, depending on the malfunction. Warning Message Malfunction Status Fail-safe Operation
Terminals Of Ecu
TERMINALS OF ECU CHECK HEADLIGHT ECU SUB-ASSEMBLY LH (a) Disconnect the A19 headlight sub-assembly LH connector. (b) Measure the resistance and voltage according to the value(s) in the table below. Terminal No. (Symbol) Wiring Color Terminal Description Condition Specified Condition
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