Nissan Murano: System (intelligent Key System) / Key Reminder Function
System Description
SYSTEM DIAGRAM

INPUT SIGNAL AND OUTPUT SIGNAL
| Signal name | Input | Output | Description |
| Key ID signal |
Remote keyless entry receiver |
BCM |
The BCM receives key ID signal inputs and activates the actuators accordingly. |
| Inside key antenna signal |
Inside key antenna |
BCM |
The BCM receives inside key antenna signals inputs and activates the actuators accordingly. |
| Door switch signal |
Door switch |
BCM |
The BCM receives door switch signals inputs and activates the actuators accordingly. |
| Driver side door lock/unlock status signal |
Unlock sensor |
BCM |
The BCM receives diver side door lock/unlock status signal inputs and activates the actuators accordingly. |
| Back door open request signal |
BCM |
Automatic back door control module (CAN) |
The BCM receives back door open request signal inputs and activates the actuators accordingly. |
SYSTEM DESCRIPTION
Key reminder is the function that prevents the key from being left in the vehicle.
Key reminder has the following 3 functions:
| Key reminder function | Operation condition | Operation |
| Driver door is closed*. |
Right after driver door is closed under the following conditions:
-
Door lock operation is performed.
-
Driver side door is open.
-
Driver side door is in lock state.
|
All doors (except back door) and fuel filler lid unlock. |
| Door is open or closed. |
Right after all doors are closed under the following conditions:
|
|
| Back door is closed. |
Right after back door is closed under the following conditions:
-
Intelligent Key is inside Nissan Murano vehicle.
-
All doors (except for back door) are closed.
-
All doors (except for back door) are locked.
|
-
All doors (except for back door) and fuel filler lid unlock.
-
Back door can open with back door opener switch.
-
Honk Intelligent Key warning buzzer.
|
*: If the door closing impact shocks the door lock knob or contacts against baggage, the door lock knob might activate the door locks accidentally but unlock operation is performed in these cases.
CAUTION:
-
The above function operates when the Intelligent Key is inside the Nissan Murano vehicle. However, there may be times when the Intelligent Key cannot be detected. This function does not operate when the Intelligent Key is on the instrument panel, rear parcel shelf or in the glove box. Also, this system sometimes does not operate if the Intelligent Key is in the door pocket of the open door.
System Description
OPERATION DESCRIPTIONThe warning functions are as per the following items and are given to the user as warning information and warnings using combinations of Intelligent Key warning buzzer, combination meter buzzer, KEY warning lamp and information display in combination meter:
Intelligent Key system malfunction
OFF position warning
P position warning
Take away warning
Door lock operation warning
Engine start information
Intelligent Key low battery warning
Key ID warning
Key ID verification information
OPERATION CONDITIONOnce the following condition from below is established, alert or warning is executed: Warning/Information functions Operation procedure
Intelligent Key system malfunction
When a malfunction is detected on BCM, “KEY” warning lamp illuminates...
System Description
SYSTEM DIAGRAMOPERATIONRemote keyless entry system controls operation of the following items:
Door lock/unlock function
Selective unlock function
Auto door lock function
Hazard and horn reminder function
Automatic back door open/close function
Remote engine start
INPUT SIGNAL AND OUTPUT SIGNAL Signal name Input Output Description
Key ID signal
Remote keyless entry receiver
BCM
The BCM receives key ID signal inputs and activates the actuators accordingly...
Other information:
Exploded View
Transaxle assembly
Terminal cord assembly
Control valve
Bracket
O-ring
Oil strainer assembly
Oil pan gasket
Oil pan
Drain plug
Drain plug gasket
Magnet
Spring washer
Manual plate
Lip seal
Snap ring
Overflow plug
O-ring
: Always replace after every disassembly
: N·m (kg-m, ft-lb)
: N·m (kg-m, in-lb)
: Apply CVT fluid
: Apply petroleum jelly
Reduction gear assembly
Differential assembly
Clip
Lubrication tube
Baffle plate
Converter housing
Baffle plate
Snap ring
Drive sprocket
Driven sprocket
Oil pump chain
O-ring
Baffle plate (Chain cover)
Thrust bearing
Thrust bearing race
Dummy cover
Thrust washer
Chain guide
Bracket
Oil pump
O-ring
Transaxle case
: Always replace after every disassembly...
Abbreviations: I = Inspect and correct or replace as necessary, R =
Replace,
NOTE:
Maintenance items with “ ” should be performed more frequently
according to “Maintenance under severe driving conditions”.
(1) If towing a trailer, using a camper or a car-top carrier or driving
on rough or muddy roads, inspect CVT fluid deterioration every
60,000 miles (96,000 km), then change CVT fluid if necessary...