Nissan Sentra Service Manual: System
Warning chime system
Warning chime system : system diagram
Warning chime system : system description
Description
- The buzzer for warning chime system is installed in the combination meter.
- The buzzer sounds when the combination meter receives a buzzer output signal from the bcm.
- The bcm receives signals from various units and transmits a buzzer output signal to the combination meter with can communication line if it judges that the warning buzzer should be activated.
Light reminder warning chime
Light reminder warning chime : system diagram
Light reminder warning chime : system description
Description
With ignition switch in OFF or ACC position, driver door open, and lighting switch in parking lamp or headlamp position, the light warning chime will sound.
- Bcm detects ignition switch in off or acc position, front door switch lh on, and lighting switch in parking lamp or headlamp position, and then transmits buzzer output signal (light reminder warning chime) to combination meter with can communication line.
- When combination meter receives buzzer output signal (light reminder warning chime), it sounds the buzzer.
Warning operation conditions
If all of the following conditions are fulfilled
- Lighting switch is in parking lamp or headlamp position
- Ignition switch is in off or acc
- Front door switch lh is on
Warning cancel conditions
Warning is canceled if any of the following conditions is fulfilled.
- Lighting switch off
- Ignition switch on
- Front door switch LH is OFF
Seat belt warning chime
SEAT BELT WARNING CHIME : System Diagram
Seat belt warning chime : system description
Description
With ignition switch turned on and driver seat belt unfastened, seat belt warning chime will sound for approximately 6 seconds.
- Bcm receives seat belt buckle switch signal from combination meter with can communication line.
- Bcm detects ignition switch turned on and seat belt buckle switch lh on, and then transmits buzzer output signal (seat belt warning chime) to combination meter with can communication line.
- When combination meter receives buzzer output signal (seat belt warning chime), it sounds the buzzer.
Warning operation conditions
If all of the following conditions are fulfilled
- Ignition switch offƒ¸on
- Seat belt buckle switch lh is on (driver seat belt not fastened)
Warning cancel conditions
Cancels the warning if any of the following conditions is fulfilled.
- Ignition switch OFF
- Seat belt buckleSeat belt buckle switch lh is off (driver seat belt fastened)
Key warning chime (without intelligent key)
Key warning chime (without intelligent key) : system diagram
Key warning chime (without intelligent key) : system description
With the key inserted into the key switch, and the ignition switch in the OFF or ACC position, when driver's door is opened, the warning chime will sound.
- BCM detects key inserted into the ignition switch, and sends key warning signal to combination meter with CAN communication line.
- When combination meter receives key warning signal, it sounds warning chime.
Parking brake release warning chime
Parking brake release warning chime : system diagram
Parking brake release warning chime : system description
Description
- The combination meter receives the vehicle speed signal from the abs actuator and electric unit (control unit) via can communication line.
- The combination meter judges whether the parking brake is released using the parking brake switch signal from the parking brake switch, and sounds the warning buzzer if necessary.
Warning operation conditions
If all of the following conditions are fulfilled:
- Vehicle speed is approximately 7 km/h (4.3 MPH) or higher
- Parking brake switch on
Warning cancel conditions
Warning is canceled if any of the following conditions are fulfilled:
- Vehicle speed is approximately 3 km/h (1.9 MPH) or less
- Parking brake switch off
Component parts
Component parts location
Combination meter
Combination switch (lighting and turn
signal switch)
Key switch (without intelligent key system)
Push-button ignition switch (with intelligent
...
Diagnosis system (combination meter)
Consult function (meter/m&a)
Application items
Consult can perform the following diagnosis modes via can communication and
the combination meter.
Self diag result
Refer to mwi-26, " ...
Other materials:
Headlamp (hi) circuit
Description
The IPDM E/R (intelligent power distribution module engine room) controls the
headlamp high relay based on
inputs from the BCM over the CAN communication lines. When the headlamp high
relay is energized, power
flows through fuses 41 and 42, located in the IPDM E/R. Power then flo ...
Precaution
Precaution for 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 along
with a front seat belt, helps to reduce the risk or severity of injur ...
Od off indicator lamp
Component Function Check
1.CHECK OD OFF INDICATOR LAMP FUNCTION
Check OD OFF indicator lamp turns ON for approx. 2 seconds when ignition
switch turns ON.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to TM-239, "Diagnosis Procedure".
Diagnosis Proce ...
