key NISSAN TEANA 2008 Service Manual

SERVICE INFORMATION FOR ELECTRICAL INCIDENT
GI-39
< BASIC INSPECTION >
C
D
E
F
G
H
I
J
K
L
MB
GI
N
O
P
To simplify the discussion of shorts in the system, please refer to the following schematic.
Resistance Check Method
 Disconnect the battery negative cable and remove the blown fuse.
 Disconnect all loads (SW1 open, relay disconnected and solenoid disconnected) powered through the fuse.
 Connect one probe of the DMM to the load side of the fuse terminal. Connect the other probe to a known
good ground.
 With SW1 open, check for continuity.
continuity; short is between fuse terminal and SW1 (point A).
no continuity; short is further down the circuit than SW1.
 Close SW1 and disconnect the relay. Put probes at the load side of fuse terminal and a known good ground.
Then, check for continuity.
continuity; short is between SW1 and the relay (point B).
no continuity; short is further down the circuit than the relay.
 Close SW1 and jump the relay contacts with jumper wire. Put probes at the load side of fuse terminal and a
known good ground. Then, check for continuity.
continuity; short is between relay and solenoid (point C).
no continuity; check solenoid, retrace steps.
Voltage Check Method
 Remove the blown fuse and disconnect all loads (i.e. SW1 open, relay disconnected and solenoid discon-
nected) powered through the fuse.
 Turn the ignition key to the ON or START position. Verify battery voltage at the battery + side of the fuse ter-
minal (one lead on the battery + terminal side of the fuse block and one lead on a known good ground).
 With SW1 open and the DMM leads across both fuse terminals, check for voltage.
voltage; short is between fuse block and SW1 (point A).
no voltage; short is further down the circuit than SW1.
 With SW1 closed, relay and solenoid disconnected and the DMM leads across both fuse terminals, check for
voltage.
voltage; short is between SW1 and the relay (point B).
no voltage; short is further down the circuit than the relay.
 With SW1 closed, relay contacts jumped with fused jumper wire check for voltage.
voltage; short is down the circuit of the relay or between the relay and the disconnected solenoid (point C).
no voltage; retrace steps and check power to fuse block.
GROUND INSPECTION
 Ground connections are very important to the proper operation of electrical and electronic circuits. Ground
connections are often exposed to moisture, dirt and other corrosive elements. The corrosion (rust) can
become an unwanted resistance. This unwanted resistance can change the way a circuit works.
 Electronically controlled circuits are very sensitive to proper grounding. A loose or corroded ground can
drastically affect an electronically controlled circuit. A poor or corroded ground can easily affect the circuit.
Even when the ground connection looks clean, there can be a thin film of rust on the surface.
 When inspecting a ground connection follow these rules:
- Remove the ground bolt or screw.
- Inspect all mating surfaces for tarnish, dirt, rust, etc.
- Clean as required to assure good contact.
- Reinstall bolt or screw securely.
- Inspect for “add-on” accessories which may be interfering with the ground circuit.
- If several wires are crimped into one ground eyelet terminal, check for proper crimps. Make sure all of the
wires are clean, securely fastened and providing a good ground path. If multiple wires are cased in one eye-
let make sure no ground wires have excess wire insulation.
SGI847-A

INL-6
< FUNCTION DIAGNOSIS >
INTERIOR ROOM LAMP CONTROL SYSTEM
 The interior room lamp turns ON and OFF (gradual brightening and dimming) by the interior room timer.
 BCM judges the vehicle condition with the following items. It activates the interior room timer.
- Ignition switch status
- Door switch signal (ALL)
- Door lock/unlock signal (Remote keyless entry receiver, each request switch, door lock/unlock switch)
NOTE:
Each function of interior room lamp timer can be set by CONSULT-III. Refer to INL-16, "
INT LAMP : CON-
SULT-III Function (BCM - INT LAMP)".
Interior Room Lamp ON Operation
 BCM always turns the interior room lamp ON when any door opens.
 BCM activates the interior room timer in any of the following conditions to turn the interior room lamp ON for
a period of time.
- Any door opens before all doors close.
- Ignition switch is turned ON → OFF.
- Any door unlock signal is detected when all doors close with ignition switch OFF.
NOTE:
Restart the timer if new condition is input during the timer operating time.
Interior Room Lamp OFF Operation
BCM stops the timer in any of the following conditions to turns the interior room lamp OFF.
 The timer operating time is expired.
 Ignition switch position is other than OFF with all doors close.
 Any door lock operation is detected with all doors close.
STEP LAMP CONTROL
BCM controls the step lamp (ground-side) to turn ON with any door switch ON.
TRUNK ROOM LAMP CONTROL
BCM controls the trunk room lamp (ground-side) to turn ON with trunk room lamp switch ON.
PUSH-BUTTON IGNITION SWITCH ILLUMINATION CONTROL
Push-button Ignition Switch Illumination Basic Operation
BCM provides the power supply to turn the push-button ignition switch illumination ON.
Push-button Ignition Switch Illumination ON Operation
BCM turns the push-button ignition switch illumination ON in the following conditions.
 Ignition switch ON
 Any of the following conditions with ignition switch OFF
- Engine start permission is entered.
- Intelligent Key inserted into the key slot.
- Driver door is LOCK → UNLOCK.
- Driver door is open.
Push-button Ignition Switch Illumination OFF Operation
BCM turns the push-button ignition switch illumination OFF in any of the following conditions.
 The push-button ignition switch illumination ON conditions do not satisfy.
 All of the following conditions with ignition switch OFF
- The push-button ignition switch illumination ON conditions do not change (15 seconds after the ignition
switch OFF) or the driver door is UNLOCK → LOCK.

INTERIOR ROOM LAMP CONTROL SYSTEM
INL-7
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
MA
B
INL
N
O
P
Component Parts LocationINFOID:0000000003774541
1. Personal lamp 2. Request switch 3. Step lamp
4. Door switch 5. Door lock/unlock switch 6. Push-button ignition switch illumination
7. Map lamp 8. Remote keyless entry receiver 9. BCM
10. Trunk room lamp switch 11. Trunk room lamp
A. Over the glove box B. Behind the combination meter C. Trunk lid lock assembly
D. Trunk room upward
JPLIA1126ZZ

INL-8
< FUNCTION DIAGNOSIS >
INTERIOR ROOM LAMP CONTROL SYSTEM
Component Description
INFOID:0000000003774542
Part Description
BCM Activates the interior room lamp timer depending on the vehicle condition to turn the
interior room lamp ON/OFF.
 Turns the step lamp ON/OFF according to any door switch status.
Remote keyless entry receiver Receives the lock/unlock signal from keyfob.
 Transmits the lock/unlock signal to BCM.
 Request switch
 Door lock/unlock switchInputs the lock/unlock signal to BCM.
 Door switch
 Trunk room lamp switchInputs the switch signal to BCM.

INTERIOR ROOM LAMP BATTERY SAVER SYSTEM
INL-9
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
MA
B
INL
N
O
P
INTERIOR ROOM LAMP BATTERY SAVER SYSTEM
System DiagramINFOID:0000000003774543
System DescriptionINFOID:0000000003774544
OUTLINE
 Interior room lamp battery saver is controlled by BCM.
 BCM turns applicable lamps OFF depending on the vehicle condition. This function prevents the battery
from over-discharging if the driver neglect turning OFF the any lamps.
Applicable lamps
 Map lamp
 Personal lamp
 Step lamp
 Trunk room lamp
 Vanity mirror lamp
INTERIOR ROOM LAMP BATTERY SAVER FUNCTION
 When the ignition switch is turned OFF, BCM operates the timer for a period of time to cut the interior room
lamp power supply.
 BCM restart the timer when any of the following signals changes while operating the timer.
- Ignition switch status
- Door switch signal (ALL)
- Door lock/unlock signal (Remote keyless entry receiver, each request switch, door lock/unlock switch)
- Trunk room lamp switch signal
- Key switch signal (Key slot)
 BCM provides the interior room lamp power supply continuously when the ignition switch position is other
than OFF.
NOTE:
Each function of interior room lamp battery saver can be set by CONSULT-III. Refer to INL-17, "
BATTERY
SAVER : CONSULT-III Function (BCM - BATTERY SAVER)".
JSLIA0086GB

INL-10
< FUNCTION DIAGNOSIS >
INTERIOR ROOM LAMP BATTERY SAVER SYSTEM
Component Parts Location
INFOID:0000000003774545
Component DescriptionINFOID:0000000003774546
1. Personal lamp 2. Request switch 3. Step lamp
4. Door switch 5. Door lock/unlock switch 6. Key slot
7. Map lamp 8. Vanity mirror lamp 9. Remote keyless entry receiver
10. BCM 11. Trunk room lamp switch 12. Trunk room lamp
A. Over the glove box B. Behind the combination meter C. Trunk lid lock assembly
D. Trunk room upward
JPLIA1127ZZ
Part Description
BCMOperates the interior room lamp battery saver depending on the vehicle condition to
cut the interior room lamp power supply.
Remote keyless entry receiver Receives the lock/unlock signal from keyfob.
 Transmits the lock/unlock signal to BCM.

INTERIOR ROOM LAMP BATTERY SAVER SYSTEM
INL-11
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
MA
B
INL
N
O
P
 Request switch
 Door lock/unlock switchInputs the lock/unlock signal to BCM.
 Door switch
 Trunk room lamp switchInputs the switch signal to BCM.
Key slot Inputs the key switch status to BCM.Part Description

INL-14
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)INFOID:0000000003894737
APPLICATION ITEM
CONSULT-III performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.
×: Applicable item
NOTE:
*: This item is displayed, but is not used.
FREEZE FRAME DATA (FFD) AND IGN COUNTER
Freeze Frame Data
Diagnosis mode Function Description
Work Support Changes the setting for each system function.
Self Diagnostic Result Displays the diagnosis results judged by BCM.
CAN Diag Support MonitorMonitors the reception status of CAN communication viewed from BCM. Refer to CONSULT-III opera-
tion manual.
Data Monitor The BCM input/output signals are displayed.
Active Test The signals used to activate each device are forcibly supplied from BCM.
Ecu Identification The BCM part number is displayed.
Configuration Read and save the vehicle specification.
 Write the vehicle specification when replacing BCM.
System Sub system selection itemDiagnosis mode
Work Support Data Monitor Active Test
Door lock DOOR LOCK×××
Rear window defogger REAR DEFOGGER××
Warning chime BUZZER××
Interior room lamp timer INT LAMP×××
Exterior lamp HEAD LAMP×××
Wiper and washer WIPER×××
Turn signal and hazard warning lamps FLASHER×××
— AIR CONDITONER*
 Intelligent Key system
 Engine start systemINTELLIGENT KEY×××
Combination switch COMB SW×
Body control system BCM×
NVIS - NATS IMMU××
Interior room lamp battery saver BATTERY SAVER×××
Trunk lid opener system TRUNK××
Vehicle security system THEFT ALM×××
— RETAINED PWR*×
Signal buffer system SIGNAL BUFFER××
— TPMS (AIR PRESSURE MONITOR)*×××

INL-16
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (BCM)
INT LAMP : CONSULT-III Function (BCM - INT LAMP)
INFOID:0000000003774552
WORK SUPPORT
*: Factory setting
DATA MONITOR
JPLIA0093GB
Service item Setting item Setting
SET I/L D-UNLCK INTCONOn* With the interior room lamp timer function
Off Without the interior room lamp timer function
ROOM LAMP TIMER SETMODE 2 7.5 sec.
Sets the interior room lamp ON time. (Timer operating time) MODE 3* 15 sec.
MODE 4 30 sec.
ROOM LAMP ON TIME SETMODE 1 0.5 sec.
Sets the interior room lamp gradual brightening time. MODE 2* 1 sec.
MODE 3 2 sec.
MODE 4 3 sec.
MODE 5 0 sec.
ROOM LAMP OFF TIME SETMODE 1 0.5 sec.
Sets the interior room lamp gradual dimming time. MODE 2 1 sec.
MODE 3 2 sec.
MODE 4* 3 sec.
MODE 5 0 sec.
R LAMP TIMER LOGIC SETMODE 1* Interior room lamp timer activates with synchronizing all doors.
MODE 2Interior room lamp timer activates with synchronizing the driver door
only.
Monitor item
[Unit]Description
REQ SW-DR
[On/Off]The switch status input from request switch (driver side)
REQ SW-AS
[On/Off]The switch status input from front request switch (passenger side)
PUSH SW
[On/Off]The switch status input from push-button ignition switch
KEY SW-SLOT
[On/Off]Key switch status input from key slot

DIAGNOSIS SYSTEM (BCM)
INL-17
< FUNCTION DIAGNOSIS >
C
D
E
F
G
H
I
J
K
MA
B
INL
N
O
P
ACTIVE TEST
BATTERY SAVER
BATTERY SAVER : CONSULT-III Function (BCM - BATTERY SAVER)INFOID:0000000003774553
WORK SUPPORT
*: Factory setting
DATA MONITOR
DOOR SW-DR
[On/Off]The switch status input from front door switch (driver side)
DOOR SW-AS
[On/Off]The switch status input from front door switch (passenger side)
DOOR SW-RR
[On/Off]The switch status input from rear door switch RH
DOOR SW- RL
[On/Off]The switch status input from rear door switch LH
DOOR SW-BK
[On/Off]NOTE:
The item is indicated, but not monitored.
CDL LOCK SW
[On/Off]Lock switch status received from door lock/unlock switch
CDL UNLOCK SW
[On/Off]Unlock switch status received from door lock/unlock switch
KEY CYL LK-SW
[On/Off]NOTE:
The item is indicated, but not monitored.
KEY CYL UN-SW
[On/Off]NOTE:
The item is indicated, but not monitored.
TRNK/HAT MNTR
[On/Off]The switch status input from trunk room lamp switch
RKE-LOCK
[On/Off]Lock signal status received from remote keyless entry receiver
RKE-UNLOCK
[On/Off]Unlock signal status received from remote keyless entry receiver Monitor item
[Unit]Description
Test item Operation Description
INT LAMPOnOutputs the interior room lamp control signal to turn map lamp and personal lamp ON
(Map lamp switch is in DOOR position).
Off Stops the interior room lamp control signal to turn map lamp and personal lamp OFF.
STEP LAMP TESTOn Outputs the step lamp control signal to turn step lamp ON.
Off Stops the step lamp control signal to turn step lamp OFF.
LUGGAGE LAMP TESTOn Outputs the trunk room lamp control signal to turn trunk room lamp ON.
Off Stops the trunk room lamp control signal to turn trunk room lamp OFF.
Service item Setting item Setting
BATTERY SAVER SETOn* With the exterior lamp battery saver function
Off Without the exterior lamp battery saver function
ROOM LAMP BAT SAV SETOn* With the interior room lamp battery saver function
Off Without the interior room lamp battery saver function
ROOM LAMP TIMER SETMODE 1* 30 min.
Sets the interior room lamp battery saver timer operating
time.
MODE 2 60 min.