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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Dtc Check / Clear
DTC CHECK / CLEAR CHECK FOR DTC NOTICE: When using the Techstream with the power switch off, connect the Techstream to the DLC3 and turn a courtesy light switch on and off at intervals of 1.5 seconds or less until communication between the Techstream and the vehicle begins. Then select the vehicle t
Installation
INSTALLATION 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. INSTALL CURTAIN SHIELD AIRBAG ASSEMBLY LH (a) Check that the power switch is off. (b) Check that the cable is disconnected from the negative
