NISSAN TEANA 2008 Service Manual

EXL-12
< FUNCTION DIAGNOSIS >[XENON TYPE]
HEADLAMP SYSTEM
Component Parts Location
INFOID:0000000003774358
Component DescriptionINFOID:0000000003774359
1. Headlamp (HI) 2. Headlamp (LO) 3. Combination switch
4. IPDM E/R 5. BCM 6. High beam indicator lamp
A. Engine room (LH) B. Behind the combination meter C. On the combination meter
J P L I A 111 8 Z Z
Part Description
BCM Detects each switch condition by the combination switch reading function.
 Judges that the headlamp is turned ON according to the vehicle condition.
- Requests the headlamp relay (HI/LO) ON to IPDM E/R (with CAN communication).
- Requests the high beam indicator lamp ON to the combination meter (with CAN
communication).
IPDM E/RControls the integrated relay, and supplies voltage to the load according to the request
from BCM (with CAN communication).
Combination switch
(Lighting & turn signal switch)Refer to BCS-8, "
System Diagram".
Combination meter
(High beam indicator lamp)Turns the high beam indicator lamp ON according to the request from BCM (with CAN
communication).

AUTO LIGHT SYSTEM
EXL-13
< FUNCTION DIAGNOSIS >[XENON TYPE]
C
D
E
F
G
H
I
J
K
MA
B
EXL
N
O
P
AUTO LIGHT SYSTEM
System DiagramINFOID:0000000003773527
System DescriptionINFOID:0000000003773528
OUTLINE
 Auto light system is controlled by each function of BCM and IPDM E/R.
Control by BCM- Combination switch reading function
- Headlamp control function
- Auto light function
- Delay timer function
Control by IPDM E/R- Relay control function
 Auto light system has the auto light function and the delay timer function.
- Auto light function turns the exterior lamps* and each illumination ON/OFF automatically according to the
outside brightness.
- When auto light system turns the exterior lamps ON with the ignition switch OFF, delay timer function turns
the exterior lamps OFF depending on the vehicle condition with the auto light function after a certain period
of time.
*: Headlamp (LO/HI), parking lamp, tail lamp and front fog lamp (Headlamp HI and front fog lamp depend on
the combination switch condition.)
AUTO LIGHT FUNCTION
 BCM detects the combination switch condition with the combination switch reading function.
 BCM supplies voltage to optical sensor when the ignition switch is turned ON or ACC.
 Optical sensor converts outside brightness (lux) to voltage and transmits the optical sensor signal to BCM.
 BCM judges outside brightness from the optical sensor signal and judges ON/OFF condition of the exterior
lamp and each illumination according to the outside brightness.
 BCM transmits each request signal to IPDM E/R with CAN communication according to ON/OFF condition
by the auto light function.
NOTE:
ON/OFF timing differs based on the sensitivity from the setting. The setting can be set by CONSULT-III. Refer
to EXL-28, "
HEADLAMP : CONSULT-III Function (BCM - HEAD LAMP)".
DELAY TIMER FUNCTION
BCM turns the exterior lamp OFF depending on the vehicle condition with the auto light function when the igni-
tion switch is turned OFF.
 Turns the exterior lamp OFF 5 minutes after detecting that any door opens (Door switch ON).
 Turns the exterior lamp OFF a certain period of time* after closing all doors (Door switch ON→OFF).
JPLIA0804GB

EXL-14
< FUNCTION DIAGNOSIS >[XENON TYPE]
AUTO LIGHT SYSTEM
 Turns the exterior lamp OFF with the ignition switch ACC or the light switch OFF.
*: The preset time is 45 seconds. The timer operating time can be set by CONSULT-III. Refer to EXL-28,
"HEADLAMP : CONSULT-III Function (BCM - HEAD LAMP)".
NOTE:
When any position other than the light switch AUTO is set, the auto light system function switches to the exte-
rior lamp battery saver function.
Component Parts LocationINFOID:0000000003773529
Component DescriptionINFOID:0000000003773530
1. Combination switch 2. Optical sensor 3. IPDM E/R
4. BCM
A. Instrument upper panel (RH) B. Engine room (LH) C. Behind the combination meter
J P L I A 111 9 Z Z
Part Description
BCM Detects each switch condition by the combination switch reading function.
 Judges the outside brightness from the optical sensor signal.
 Judges the OFF timing according to the vehicle condition.
 Judges the ON/OFF status of the exterior lamp and each illumination according to the
outside brightness and the vehicle condition.
Requests ON/OFF of each relay to IPDM E/R (with CAN communication).
IPDM E/RControls the integrated relay, and supplies voltage to the load according to the request
from BCM (with CAN communication).
Combination switch
(Lighting & turn signal switch)Refer to BCS-8, "
System Diagram".
Optical sensor Refer to EXL-69, "
Description".

HEADLAMP AIMING CONTROL SYSTEM (AUTO)
EXL-15
< FUNCTION DIAGNOSIS >[XENON TYPE]
C
D
E
F
G
H
I
J
K
MA
B
EXL
N
O
P
HEADLAMP AIMING CONTROL SYSTEM (AUTO)
System DiagramINFOID:0000000003774320
System DescriptionINFOID:0000000003774321
OUTLINE
 Headlamp aiming control system is controlled by auto levelizer control unit.
 Auto levelizer control unit controls the headlamp light axis height appropriately depending on the vehicle rear
height.
 Auto levelizer control unit detects the vehicle condition necessary for the aiming motor control with the fol-
lowing signals.
- Sensor lever signal (detected by the sensor lever)
- Tail lamp signal (inputted from IPDM E/R)
- Vehicle speed signal (8-pulse) (inputted from combination meter)
HEADLAMP AUTO AIMING OPERATION
 Auto levelizer control unit calculates vehicle pitch angle from sensor lever signal and determines the neces-
sary correction to compensate the deviation from standard light axis position.
 Auto levelizer control unit outputs aiming motor drive signal when operating conditions are satisfied.
Operating condition
- Ignition switch ON
- Tail lamp ON
 Auto levelizer control unit changes the aiming motor drive signal when any of the correcting condition is
detected. Output is maintained if other condition is detected.
Correcting condition- Tail lamp is turned ON.
- Vehicle posture becomes stable after the vehicle posture change is detected with the tail lamp ON and the
vehicle stopped.
- Vehicle speed is maintained with the tail lamp ON and the vehicle driven.
CAUTION:
Adjusted axis position may differ from the preset position although the headlamp auto aiming acti-
vates properly when the suspension is replaced or worn.
JPLIA0171GB

EXL-16
< FUNCTION DIAGNOSIS >[XENON TYPE]
HEADLAMP AIMING CONTROL SYSTEM (AUTO)
Component Parts Location
INFOID:0000000003774322
Component DescriptionINFOID:0000000003774323
1. Combination meter 2. Aiming motor 3. IPDM E/R
4. Auto levelizer control unit
A. Front combination lamp (back) B. Engine room (LH) C. Left rear suspension member
JPLIA1148ZZ
Part Description
Auto levelizer control unit Refer to EXL-60, "
Description".
Headlamp aiming motor Refer to EXL-60, "
Description".
IPDM E/R Outputs the tail lamp signal to auto levelizer control unit.
Combination meter Outputs the vehicle speed signal (8-pulse) to auto levelizer control unit.

FRONT FOG LAMP SYSTEM
EXL-17
< FUNCTION DIAGNOSIS >[XENON TYPE]
C
D
E
F
G
H
I
J
K
MA
B
EXL
N
O
P
FRONT FOG LAMP SYSTEM
System DiagramINFOID:0000000003773531
System DescriptionINFOID:0000000003773532
OUTLINE
Front fog lamp is controlled by combination switch reading function and front fog lamp control function of BCM,
and relay control function of IPDM E/R.
FRONT FOG LAMP OPERATION
 BCM detects the combination switch condition by the combination switch reading function.
 BCM transmits the front fog light request signal to IPDM E/R with CAN communication according to the front
fog lamp ON condition.
Front fog lamp ON condition
- Front fog lamp switch ON
- Lighting switch 1ST, 2ND or AUTO (auto light function ON judgment)
 IPDM E/R turns the integrated front fog lamp relay ON, and turns the front fog lamp ON according to the
front fog light request signal.
 Combination meter turns the front fog lamp indicator lamp ON according to the front fog light request signal.
JPLIA1083GB

EXL-18
< FUNCTION DIAGNOSIS >[XENON TYPE]
FRONT FOG LAMP SYSTEM
Component Parts Location
INFOID:0000000003773533
Component DescriptionINFOID:0000000003773534
1. Front fog lamp 2. Combination switch 3. IPDM E/R
4. BCM 5. Front fog lamp indicator lamp
A. Engine room (LH) B. Behind the combination meter C. On the combination meter
JPLIA1121ZZ
Part Description
BCM Detects each switch condition by the combination switch reading function.
 Judges the front fog lamp ON/OFF status according to the vehicle condition.
- Requests the front fog lamp relay ON to IPDM E/R (with CAN communication).
IPDM E/RControls the integrated relay and supplies voltage to the load according to the request
from BCM (with CAN communication).
Combination switch
(Lighting & turn signal switch)Refer to BCS-8, "
System Diagram".
Combination meter
(Front fog lamp indicator lamp)Turn the front fog lamp indicator lamp ON according to the request from BCM (with
CAN communication).

TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
EXL-19
< FUNCTION DIAGNOSIS >[XENON TYPE]
C
D
E
F
G
H
I
J
K
MA
B
EXL
N
O
P
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
System DiagramINFOID:0000000003773535
System DescriptionINFOID:0000000003773536
OUTLINE
Turn signal lamp and the hazard warning lamp is controlled by combination switch reading function and the
flasher control function of BCM.
TURN SIGNAL LAMP OPERATION
 BCM detects the combination switch condition by the combination switch reading function.
 BCM supplies voltage to the right (left) turn signal lamp circuit when the ignition switch is turned ON and the
turn signal switch is in the right (left) position. BCM blinks the turn signal lamp.
HAZARD WARNING LAMP OPERATION
BCM supplies voltage to both turn signal lamp circuit when the hazard switch is turned ON. BCM blinks the
hazard warning lamp.
TURN SIGNAL INDICATOR LAMP AND TURN SIGNAL SOUND OPERATION
 BCM transmits the turn indicator signal to the combination meter with CAN communication while the turn sig-
nal lamp and the hazard warning lamp are operating.
 Combination meter outputs the turn signal sound with the integrated buzzer while blinking the turn signal
indicator lamp according to the turn indicator signal.
HIGH FLASHER OPERATION (FAIL-SAFE)
 BCM detects the turn signal lamp circuit status by the terminal current value.
 BCM increases the turn signal lamp blinking speed if the bulb or harness open is detected with the turn sig-
nal lamp operating.
NOTE:
The blinking speed is normal while operating the hazard warning lamp.
JPLIA0180GB

EXL-20
< FUNCTION DIAGNOSIS >[XENON TYPE]
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
Component Parts Location
INFOID:0000000003773537
Component DescriptionINFOID:0000000003773538
1. Hazard switch 2. Front turn signal lamp 3. Combination switch
4. Side turn signal lamp 5. Rear turn signal lamp 6. BCM
7. Turn signal indicator lamp
A. Behind the combination meter B. On the combination meter
JPLIA1122ZZ
Part Description
BCM Detects each switch condition by the combination switch reading function.
 Judges the blinks of the turn signal lamp and the hazard warning lamp from each
switch status. The applicable turn signal lamp blinks.
 Requests the turn signal indicator lamp blink to the combination meter (with CAN
communication).
Combination switch
(Lighting & turn signal switch)Refer to BCS-8, "
System Diagram".
Hazard switch Inputs the hazard switch ON/OFF signal to BCM.
Combination meter
(Turn signal indicator lamp & buzzer)Blinks the turn signal indicator lamp and outputs the turn signal operating sound with
integrated buzzer according to the request from BCM (with CAN communication).

PARKING, LICENSE PLATE AND TAIL LAMPS SYSTEM
EXL-21
< FUNCTION DIAGNOSIS >[XENON TYPE]
C
D
E
F
G
H
I
J
K
MA
B
EXL
N
O
P
PARKING, LICENSE PLATE AND TAIL LAMPS SYSTEM
System DiagramINFOID:0000000003773539
System DescriptionINFOID:0000000003773540
OUTLINE
Parking, license plate and tail lamps are controlled by combination switch reading function and headlamp con-
trol function of BCM, and relay control function of IPDM E/R.
PARKING, LICENSE PLATE AND TAIL LAMPS OPERATION
 BCM detects the combination switch condition by the combination switch reading function.
 BCM transmits the position light request signal to IPDM E/R and the combination meter with CAN communi-
cation according to the ON/OFF condition of the parking, license plate and tail lamps.
Parking, license plate and tail lamps ON condition
- Lighting switch 1ST
- Lighting switch 2ND
- Lighting switch AUTO (auto light function ON judgment)
 IPDM E/R turns the integrated tail lamp relay ON and turns the parking lamp, license plate and tail lamps ON
according to the position light request signal.
 Combination meter turns the tail lamp indicator lamp ON according to the position light request signal.
JPLIA0181GB