Nissan Altima (L32) 2007-2012 Service Manual: The seat belt warning continues sounding, or does not
sound
Description
• Seat belt warning does not sound even though driver seat belt is not
fastened.
• Seat belt warning sounds even though driver seat belt is fastened.
Diagnosis Procedure
1. CHECK WARNING CHIME OPERATION
With the driver door open, turn lighting switch to 1st or 2nd position.
Does warning chime sound?
YES >> GO TO 2
NO >> Replace combination meter. Refer to MWI-176, "Removal and
Installation".
2. CHECK SEAT BELT WARNING LAMP
1. Turn ignition switch ON.
2. Check the operation of the seat belt warning lamp in the combination meter.
Is the inspection result normal?
YES >> Replace BCM. Refer to BCS-96, "Removal and Installation".
NO >> GO TO 3
3. CHECK SEAT BELT BUCKLE SWITCH CIRCUIT
Perform inspection of the seat belt buckle switch circuit. Refer to WCS-20,
"Diagnosis Procedure".
Is the inspection result normal?
YES >> GO TO 4
NO >> Repair or replace harness.
4. CHECK SEAT BELT BUCKLE SWITCH UNIT
Perform a unit inspection for the seat belt buckle switch. Refer to WCS-21,
"Component Inspection".
Is the inspection result normal?
YES >> Replace the combination meter. Refer to MWI-176, "Removal and
Installation".
NO >> Replace the seat belt buckle switch LH.
Description
Light reminder warning does not sound even though headlamp is illuminated.
Diagnosis Procedure
1. CHECK COMBINATION SWITCH (LIGHT SWITCH) OPERATION
Check that the headlamps operate n ...
Supplemental Restraint System (SRS) "AIR BAG"
and "SEAT BELT PRE-TENSIONER"
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”,
used alon ...
Other materials: Warning/Indicator lights (yellow)
For additional information on warnings
and indicators, see "Vehicle information
display-5 inch (13 cm) Type A" or
"Vehicle information display-7 inch (18 cm)
Type B".
or
Anti-lock Braking
System (ABS)
warning light
When the ignition switch is placed in the ON
position, the ABS warning light illumi ...
System operation
The system informs with a visual and audible
alert of rear obstacles when the shift
lever is in the R (Reverse) position.
The system is deactivated at speeds above
6 mph (10 km/h). It is reactivated at lower
speeds.
The intermittent tone will stop after 3 seconds
when an obstacle is detected by on ...
Precautions on child restraints
WARNING
Failure to follow the warnings and instructions
for proper use and installation
of child restraints could result in serious
injury or death of a child or other
passengers in a sudden stop or collision:
The child restraint must be used
and installed properly. Always follow
all of ...