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:
Rear window defogger system
System Diagram
System Description
Operation Description
• Turn rear window defogger switch ON when the ignition switch is turned ON.
Then front air control (rear window
defogger switch) transmits rear window defogger switch signal to BCM.
• BCM turns rear window defogger relay ON whe ...
Charging system preliminary inspection
Inspection Procedure
1.CHECK BATTERY TERMINALS CONNECTION
Check if battery terminals are clean and tight.
Is the inspection result normal?
YES >> GO TO 2
NO >> Repair battery terminals connection.
2.CHECK FUSE
Check for blown fuse and fusible link.
Is the inspection result n ...
Fuel injector and fuel tube
Removal and Installation
1. Fuel tube protector
2. Fuel tube
3. Upper O-ring (black)
4. Clip
5. Fuel injector
6. Lower O-ring (green)
7. Intake manifold adapter
A. Follow installation procedure
CAUTION:
• Apply new engine oil before installing the parts, as shown above.
• Do not r ...