Lexus NX: Horn

Components

COMPONENTS

ILLUSTRATION

*1

HIGH PITCHED HORN ASSEMBLY

*2

LOW PITCHED HORN ASSEMBLY

*3

RADIATOR SUPPORT OPENING COVER

-

-

N*m (kgf*cm, ft.*lbf): Specified torque

-

-

Removal

REMOVAL

PROCEDURE

1. REMOVE RADIATOR SUPPORT OPENING COVER

Click here

2. REMOVE HIGH PITCHED HORN ASSEMBLY

(a) Disconnect the connector.

(b) Remove the bolt and high pitched horn assembly.

3. REMOVE LOW PITCHED HORN ASSEMBLY

(a) Disconnect the connector.

(b) Remove the bolt and low pitched horn assembly.

Inspection

INSPECTION

PROCEDURE

1. INSPECT HIGH PITCHED HORN ASSEMBLY

*a

Component without harness connected

(High Pitched Horn Assembly)

(a) Apply battery voltage and check operation of the high pitched horn according to the table below.

OK:

Measurement Condition

Specified Condition

Battery positive (+) → Terminal 1

Battery negative (-) → Horn body

High pitched horn sounds

If the result is not as specified, replace the high pitched horn assembly.

2. INSPECT LOW PITCHED HORN ASSEMBLY

*a

Component without harness connected

(Low Pitched Horn Assembly)

(a) Apply battery voltage and check operation of the low pitched horn according to the table below.

OK:

Measurement Condition

Specified Condition

Battery positive (+) → Terminal 1

Battery negative (-) → Horn body

Low pitched horn sounds

If the result is not as specified, replace the low pitched horn assembly.

READ NEXT:

 Horn System

Parts LocationPARTS LOCATION ILLUSTRATION *1 LOW PITCHED HORN ASSEMBLY *2 HIGH PITCHED HORN ASSEMBLY *3 HORN RELAY *4 SPIRAL CABLE SUB-ASSEMBLY *5 STEERING PAD SWITCH ASSEMB

 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)

SEE MORE:

 Removal

REMOVAL PROCEDURE 1. REMOVE INSTRUMENT SIDE PANEL LH Click here 2. REMOVE NO. 1 INSTRUMENT PANEL SAFETY PAD SUB-ASSEMBLY Click here 3. REMOVE TRIP SWITCH (LIGHT CONTROL RHEOSTAT) (a) Using a screwdriver, detach the 2 claws and remove the trip switch (light control rheostat). HINT: Tape th

 Left Headlight ECU Variation Error (B2456)

DESCRIPTION This DTC is output when a headlight ECU sub-assembly LH that is incompatible with the vehicle is installed. The headlight ECU sub-assembly LH outputs DTC B2456. DTC No. Detection Item DTC Detection Condition Trouble Area B2456 Left Headlight ECU Variation Error Headlight

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