Nissan Altima 2007-2012 Service Manual: Horn

Description

Horn (high/low) is located inside of front bumper and operates when theft warning system is in alarm phase.

Component Function Check

1.CHECK FUNCTION

1. Select HORN in “ACTIVE TEST” mode with CONSULT-III.

2. Check the horn (high/low) operation.

Is the operation normal? YES >> Inspection End.

NO >> Refer to SEC-120, "Diagnosis Procedure".

Diagnosis Procedure

1.CHECK HORN FUNCTION

Check horn function with horn switch Do the horns sound? YES >> GO TO 2

NO >> Refer to HRN-3, "Wiring Diagram - Coupe".

2.CHECK HORN RELAY POWER SUPPLY

1. Turn ignition switch ON.

2. Perform “ACTIVE TEST” (“HORN”) with CONSULT-Ill.

3. Using an analog voltmeter or an oscilloscope, check voltage between IPDM E/R connector E17 terminal 44 and ground.

Is the inspection result normal? YES >> Repair or replace harness between IPDM E/R and horn relay.

NO >> GO TO 3.

3.CHECK HORN RELAY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect IPDM E/R and horn relay connector.

3. Check continuity between IPDM E/R harness connector and horn relay harness connector.

4. Check continuity between IPDM E/R harness connector and ground.

Is the inspection result normal? YES >> GO TO 4

NO >> Repair or replace harness.

4.CHECK INTERMITTENT INCIDENT

Refer to GI-42, "Intermittent Incident".

Is the inspection result normal? YES >> Replace IPDM E/R.Refer to PCS-48, "Removal and Installation".

NO >> Repair or replace the malfunctioning part.

    Key cylinder switch
    Description For vehicles equipped with LH and RH anti-pinch system, the main power window and door lock/unlock switch detects condition of the door key cylinder switch and transmits to BCM as the ...

    Headlamp
    Description Headlamp lighting when theft warning system is alarm phase. Component Function Check 1.CHECK HEADLAMP OPERATION Check if headlamp operate by lighting switch. Does headlamp come on ...

    Other materials:

    Shift lock system
    System Diagram System Description The selector lever cannot be shifted from “P” position to any other position unless the ignition switch is in the ON position and the brake pedal is depressed. Component Parts Location 1. BCM (view with instrument panel removed 2. Steering column 3. ...

    Headlamp
    Bulb Replacement HEADLAMP CAUTION: • Do not touch the glass of bulb directly by hand. Keep grease and other oily substances away from bulb. Do not touch bulb by hand while it is lit or right after being turned off, burning may result. Removal 1. Disconnect negative battery terminal. 2 ...

    Both side headlamps (LO) are not turned on
    Description The headlamps (both sides) do not turn ON in any lighting switch setting. Diagnosis Procedure 1.CHECK COMBINATION SWITCH Check the combination switch. Refer to BCS-10, "System Description". Is the combination switch normal? YES >> GO TO 2 NO >> Repair or r ...