Jaguar XJ (X350). Service manual — part 1260

Description and operation

Horn

Item Part Number Description

1

—

Horn fuse

2

—

Horn switch

3

—

Horn

The horn system includes the following:

•

Power distribution box fuse 25 (15A)

•

Horn relay

•

Horn

•

Air bag sliding contact

•

Steering wheel control switch harness

•

Horn switch

•

Generic Electronic Module (GEM)

The horn system is designed to sound the horn when the horn switch is operated. The horn
relay is supplied voltage at all times through the power distribution box fuse 25 (15A).
Operating the horn switch provides a ground circuit to the coil side of the horn relay. In turn,
the switch side of the horn relay is closed, allowing voltage to be applied to the horn.

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Diagnosis and testing

Horn

1 . Verify the customer concern.

2 . Visually inspect for obvious signs of electrical damage.

Visual Inspection Chart

Electrical

•

Fuse(s)

•

Wiring Harness

•

Electrical connector(s)

•

Horn(s)

•

Relay

•

Horn switch

•

Clockspring

1 . If an obvious cause for an observed or reported concern is found, correct the cause (if possible)

before proceeding to the next step.

2 . If the cause is not visually evident, verify the symptom and refer to the Jaguar Approved

Diagnostic System.

Removal and installation

Horn (86.30.02)

Removal

1 . Remove the radiator splash shield. <<501-02>>

2 . Disconnect the electrical connector.

3 . Remove the horn.

Installation

1 . To install, reverse the removal procedure.

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