Lexus NX: Horn System
Parts Location
PARTS LOCATION
ILLUSTRATION
| *1 | LOW PITCHED HORN ASSEMBLY | *2 | HIGH PITCHED HORN ASSEMBLY |
| *3 | HORN RELAY | *4 | SPIRAL CABLE SUB-ASSEMBLY |
| *5 | STEERING PAD SWITCH ASSEMBLY | *6 | HORN BUTTON ASSEMBLY |
| *7 | HORN FUSE | *8 | NO. 2 ENGINE ROOM RELAY BLOCK |
System Diagram
SYSTEM DIAGRAM
Problem Symptoms Table
PROBLEM SYMPTOMS TABLE
HINT:
Use the table below to help determine the cause of problem symptoms. If multiple suspected areas are listed, the potential causes of the symptoms are listed in order of probability in the "Suspected Area" column of the table. Check each symptom by checking the suspected areas in the order they are listed. Replace parts as necessary.
Horn System| Symptom | Suspected Area | Link |
|---|---|---|
| Horn does not sound | HORN fuse | - |
| HORN relay | | |
| Low pitched horn assembly | | |
| High pitched horn assembly | | |
| Steering pad switch assembly | | |
| Spiral cable sub-assembly | | |
| Horn button assembly | | |
| Harness or connector | - |
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Relay
On-vehicle InspectionON-VEHICLE INSPECTION PROCEDURE 1. INSPECT HORN RELAY ASSEMBLY (a) Remove the horn relay assembly. (b) Measure the resistance according to the value(s) in the tabl
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Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Audio and Visual System DTC No. Detection Item Link B1323 Lost Communication with Haptic Device B1324 Lost Communication with Meter B1325 Lost Communication with HUD B1326 Lost Communication with Clock Device (Local-CAN)
Diagnostic Trouble Code Chart
DIAGNOSTIC TROUBLE CODE CHART Power Back Door System DTC No. Detection Item Link B2205 Kick Sensor Circuit B2220 Back Door Motor Circuit B2226 PBD Unit Pulse Sensor LH Circuit B2227 PBD Unit Pulse Sensor RH Circuit B222A PBD Touch Sensor LH Ci
