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

-

READ NEXT:

 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

 Lighting (ext)

 Afs (adaptive Front-lighting System)

SEE MORE:

 STSW Monitor Malfunction (B2275)

DESCRIPTION This DTC is stored when a malfunction is detected in the starter circuit inside the certification ECU (smart key ECU assembly). DTC No. Detection Item DTC Detection Condition Trouble Area Note B2275 STSW Monitor Malfunction Certification ECU (smart key ECU assembly) in

 Components

COMPONENTS ILLUSTRATION *1 OIL FILTER CAP ASSEMBLY *2 O-RING *3 GASKET *4 OIL PAN DRAIN PLUG *5 OIL FILTER ELEMENT *6 OIL FILTER DRAIN PLUG *7 OIL FILLER CAP - - N*m (kgf*cm, ft.*lbf): Specified torque ● Non-reusable part

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