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

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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:

 Calibration

CALIBRATION ADJUST PARKING ASSIST MONITOR SYSTEM (a) This parking assist monitor system can be adjusted using the diagnostic screen of the display. (b) If the following operations are performed, it is necessary to perform adjustments and checks using the diagnostic screen. Part Name Operation

 Terminals Of Ecu

TERMINALS OF ECU CHECK FRONT POWER SEAT SWITCH LH (a) Disconnect the g11 and g12 front power seat switch LH connectors. (b) Measure the voltage and resistance according to the value(s) in the table below. Tester Connection Wiring Color Terminal Description Condition Specified Condition

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