Nissan Altima (L32) 2007-2012 Service Manual: Seat belt buckle switch signal circuit
Description
Transmits a seat belt buckle switch signal to the combination meter.
Component Function Check
1. CHECK COMBINATION METER INPUT SIGNAL
Select “DATA MONITOR” for “METER/M&A” and check the “BUCKLE SW” monitor value.
>> Inspection End.
Diagnosis Procedure
1. CHECK COMBINATION METER INPUT SIGNAL
1. Turn ignition switch ON.
2. Check voltage between combination meter harness connector M24 terminal 35 and ground.
Is the inspection result normal? YES >> Replace combination meter. Refer to MWI-176, "Removal and Installation".
NO >> GO TO 2
2. CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect combination meter and seat belt buckle switch LH.
3. Check continuity between combination meter harness connector M24 terminal 35 and seat belt buckle switch LH harness connector B202 terminal 1.
4. Check harness continuity between combination meter harness connector M24 terminal 35 and ground.
Is the inspection result normal? YES >> GO TO 3
NO >> Repair or replace harness.
3. CHECK SEAT BELT BUCKLE SWITCH GROUND CIRCUIT
Check harness continuity between seat belt buckle switch LH harness connector B202 terminal 2 and ground.
Is the inspection result normal? YES >> Inspection End.
NO >> Repair or replace harness.
Component Inspection
1. CHECK SEAT BELT BUCKLE SWITCH
1. Turn ignition switch OFF.
2. Disconnect the seat belt buckle switch.
3. Check continuity between terminals 1 and 2.
Is the inspection result normal? YES >> Inspection End.
NO >> Replace the seat belt buckle switch LH.
Meter buzzer circuit
Description
• The buzzer for warning chime system is installed in the combination meter.
• The combination meter sounds the alarm buzzer based on the signals transmitted
from various units.
...
Warning chime system
Wiring Diagram-Coupe
Wiring Diagram-Sedan
...
Other materials:
Low tire pressure warning lamp
stays on
Low Tire Pressure Warning Lamp Stays On When
Ignition Switch Is Turned On
DIAGNOSTIC PROCEDURE
1.CHECK BCM CONNECTORS
1. Turn ignition switch OFF.
2. Disconnect BCM harness connectors.
3. Check terminals for damage or loose connections.
Is the inspection result normal?
YES >> GO ...
Air conditioner operation
Start the engine, turn the fan control dial to the
desired position, and press the
button to
activate the air conditioner. When the air conditioner
is on, cooling and dehumidifying functions
are added to the heater operation.
The air conditioner cooling function operates
only when the engin ...
STRG branch line circuit
Diagnosis Procedure
INSPECTION PROCEDURE
1.CHECK CONNECTOR
1. Turn the ignition switch OFF.
2. Disconnect the battery cable from the negative terminal.
3. Check the terminals and connectors of the steering angle sensor for damage,
bend and loose connection
(unit side and connector side). ...
