2003 NISSAN TEANA Power

LT-106
HEADLAMP AIMING CONTROL (AUTO)

CAUTION:

As for [B2082], height sensor erases the self-diagnosis result when height sensor detects that sensor lever angle is in
normal range. And the [B2082] can be displayed when the vehicle is lifted up.

As for [B2082], [B2084] to [B2086], fail-safe is performed in accordance with running condition when code is detected,
and maintains the condition until ignition switch is turned OFF.
When ignition switch is turned ON, fail-safe is set to “within 5 seconds after ignition switch” and “vehicle speed less than
or equal to 4 km/h (2.48 MPH)”. Perform fail-safe only when having a current abnormality.

Perform fail-safe only when having a current abnormality. [B2083]
[SEN SIG NOT
PLAUSIBLE]Vehicle height detected by
height sensor while running
does not change more than
5 minutes stretch.
YES

Fix headlamp aiming motor drive signal
around 0 V.

Maintain a current position of light axis.Refer to LT- 11 3 , "
DTC
B2083 [SEN SIG NOT
PLAUSIBLE]" .
[B2084]
[VOLTAGE UNDER
LIMIT]Voltage of height sensor ter-
minal 2 kept having less than
or equal to 9 V for 1.5 sec-
onds and over when ignition
switch is ON.
Set and maintain
light axis down-
ward.Maintain a current
position of light
axis.Refer to LT- 11 3 , "
DTC
B2084 [VOLTAGE
UNDER LIMIT]" .
[B2085]
[LOW BEAM SIG
OPEN LINE]Height sensor terminal 6 had
less than 6 V at lighting
switch 1ST, or had more than
2.5 V for 1.5 seconds or
more at lighting switch OFF.Refer to LT- 11 4 , "
DTC
B2085 [LOW BEAM SIG
OPEN LINE]" .
[B2086]
[FRQ. OVER LIMIT]Vehicle speed signal kept
showing over 340 km/h
(221.3 MPH) for more than
1.5 seconds. Refer to LT- 11 5 , "
DTC
B2086 [FRQ. OVER
LIMIT]" .
[B2087]
[SHORT TO
GROUND]Height sensor terminal 7 had
short-circuit with a ground
more than 1.5 seconds.
Maintain a current position of light axis.Refer to LT- 11 6 , "
DTC
B2087 [SHORT TO
GROUND]" .
[B2088]
[SHORT TO BAT-
TERY]Height sensor terminal 7 had
short-circuit with a power
supply line more than 1.5
seconds.Refer to LT- 11 8 , "
DTC
B2088 [SHORT TO
BATTERY]" .
[B208A]
[PARA NOT PROG]Program error of the height
sensor.

Fix headlamp aiming motor drive signal
around 0 V.

Maintain a current position of light axis.Replace height sensor,
and initialize it. Refer to
LT-120, "
Removal and
Installation of Height
Sensor" . Details of error
indication
detected
by CONSULT-IIConditions of
error detectionCode
storageFail-safe
Reference Within 5 seconds
after ignition switch
ON, and vehicle
speed less than or
equal to 4 km/h
(2.48 MPH).5 seconds and
more after ignition
switch ON, or vehi-
cle speed more
than to 4 km/h
(2.48 MPH).

LT-108
HEADLAMP AIMING CONTROL (AUTO)

CAUTION:
If the vehicle height is outside the proper height, aiming control may not be performed normally even
when the headlamp aiming control system is normal.
Headlamp Aiming Motor Does Not Operate (Both Sides)BKS002CP
1. CHECK SELECT SYSTEM ON CONSULT-II
Check “HEAD LAMP LEVELIZER” is displayed on “SELECT SYS-
TEM” screen.
OK or NG
OK >> GO TO 4.
NG >> GO TO 2.
2. CHECK HEIGHT SENSOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect height sensor connector.
3. Turn ignition switch ON.
4. Check voltage between height sensor harness connector and
ground.
OK or NG
OK >> GO TO 3.
NG >> Check the following

10A fuse [No.12, located in the fuse block (J/B)]

Harness for open or short between 10A fuse (No.12) and height sensor

Harness connector
3. CHECK HEIGHT SENSOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between height sensor harness connector and
ground.
OK or NG
OK >> Replace height sensor, and initialize it. Refer to LT- 1 2 0 ,
"Removal and Installation of Height Sensor" .
NG >> Repair harness or connector.
*7 Refer to LT-103, "CONSULT-II Func-
tions (HEADLAMP LEVELIZER)" .*8 Refer to LT- 1 0 4 , "
DATA MONITOR" . *9 Refer to LT-104, "DATA MONITOR" .
*10 Refer to DI-20, "
Vehicle Speed Sig-
nal Inspection" .*11 Refer to LT-103, "
WORK SUP-
PORT" .
PKIC0427E
Te r m i n a l
Voltag e (+)
(-)
Height sensor
connectorTe r m i n a l
C4 2 Ground Battery voltage
SKIB8815E
Height sensor
connectorTe r m i n a l
GroundContinuity
C4 1 Yes
SKIB8816E

LT-110
HEADLAMP AIMING CONTROL (AUTO)

6. CHECK HEADLAMP AIMING MOTOR POWER SUPPLY CIRCUIT
1. Lighting switch is turned 1ST position.
2. Check voltage between front combination lamp (RH and LH)
harness connectors and ground.
OK or NG
OK >> GO TO 7.
NG >> Repair harness or connector.
7. CHECK HEADLAMP AIMING MOTOR GROUND CIRCUIT
Check continuity between front combination lamp (RH and LH) har-
ness connectors and ground.
OK or NG
OK >> Replace front combination lamp. Refer to LT- 3 6 ,
"Removal and Installation" .
NG >> Repair harness or connector.
8. CHECK HEADLAMP AIMING MOTOR INPUT SIGNAL CIRCUIT
1. Turn ignition switch OFF.
2. Lighting switch is turned OFF position.
3. Disconnect height sensor connector.
4. Check continuity between front combination lamp (RH and LH)
harness connectors (A) and height sensor harness connector
(B).
OK or NG
OK >> Replace height sensor, and initialize it. Refer to LT- 1 2 0 ,
"Removal and Installation of Height Sensor" .
NG >> Repair harness or connector.
Terminals
Voltage (+)
(-)
Front combination lamp
connectorTerminal
RH E15 3
Ground Battery voltage
LH E29 3
SKIB8818E
Front combination lamp
connectorTerminal
GroundContinuity
RH E15 4
Ye s
LH E29 4
SKIB8819E
CircuitAB
Continuity
Connector Terminal Connector Terminal
RH E15 6
C4 7 Yes
LH E29 6
SKIB8820E

HEADLAMP AIMING CONTROL (AUTO)
LT-111
C
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F
G
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MA
B
LT

Headlamp Aiming Motor Does Not Operate (One Side)BKS002CQ
1. CHECK HEADLAMP AIMING MOTOR POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH or LH connector.
3. Turn ignition switch ON.
4. Lighting switch is turned 1ST position.
5. Check voltage between front combination lamp RH or LH har-
ness connector and ground.
OK or NG
OK >> GO TO 2.
NG >> Repair harness or connector.
2. CHECK HEADLAMP AIMING MOTOR GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between front combination lamp RH or LH har-
ness connector and ground.
OK or NG
OK >> GO TO 3.
NG >> Repair harness or connector.
3. CHECK HEADLAMP AIMING MOTOR INPUT SIGNAL CIRCUIT
Check voltage between front combination lamp RH or LH harness
connector (A) and height sensor harness connector (B).
OK or NG
OK >> Replace front combination lamp. Refer to LT- 3 6 ,
"Removal and Installation" .
NG >> Repair harness or connector.
Terminal
Vo l ta g e (+)
(-)
Front combination lamp
connectorTerminal
RH E15 3
Ground Battery voltage
LH E29 3
SKIB8818E
Front combination lamp
connectorTe r m i n a l
GroundContinuity
RH E15 4
Ye s
LH E29 4
SKIB8819E
CircuitAB
Continuity
Connector Terminal Connector Terminal
RH E15 6
C4 7 Yes
LH E29 6
SKIB8820E

LT-114
HEADLAMP AIMING CONTROL (AUTO)

2. CHECK HEIGHT SENSOR POWER SUPPLY
1. Turn ignition switch OFF.
2. Disconnect height sensor connector.
3. Turn ignition switch ON.
4. Check voltage between height sensor harness connector and
ground.
OK or NG
OK >> Replace height sensor, and initialize it. Refer to LT- 1 2 0 ,
"Removal and Installation of Height Sensor" .
NG >> Repair harness or connector.
DTC B2085 [LOW BEAM SIG OPEN LINE]BKS002CV
1. CHECK HEIGHT SENSOR
1. Select “HEAD LAMP LEVELIZER” on CONSULT-II and “DATA MONITOR” on “SELECT DIAG MODE”
screen.
2. Check voltage on “LIGHT SIGNAL” screen when lighting switch
OFF and 1ST position.
NOTE:
The height sensor performs the self-diagnosis to check the
open-circuit of the low-beam circuit.
OK or NG
OK >> Erase the self-diagnosis result and perform the self-
diagnosis again.

[B2085] is displayed again: Replace height sensor, and initialize it. Refer to LT- 1 2 0 , "Removal
and Installation of Height Sensor" .

NO DTC is displayed: INSPECTION END
NG >> GO TO 2.
Te r m i n a l
Voltag e (+)
(-)
Height sensor
connectorTe r m i n a l
C4 2 Ground Battery voltage
SKIB8815E
Item Condition Voltage
LIGHT SIGNALlighting switch OFF position 2 V or less
lighting switch 1ST position 6 V or more
PKIB7209E

LT-120
HEADLAMP AIMING CONTROL (AUTO)

Removal and Installation of Height SensorBKS002BJ
REMOVAL
1. Turn ignition switch OFF.
2. Disconnect the battery cable from the negative terminal or remove power fuse.
3. Lift-up the vehicle.
4. Disconnect height sensor connector.
5. Remove height sensor linkage mounting nut (A), and remove
height sensor bracket mounting bolts (B).
6. Remove height sensor (1).
INSTALLATION
Installation is the reverse order of removal.
NOTE:
Initialize whenever replacing the height sensor. Refer to LT- 1 0 3 , "
WORK SUPPORT" .
PKIC9223J
Height sensor bracket mounting bolts : 7.0 N·m (0.71 kg-m, 62 ft-lb)
Height sensor linkage mounting nut : 5.5 N·m (0.56 kg-m, 49 ft-lb)

LT-126
FRONT FOG LAMP

FRONT FOG LAMPPFP:26150
Component Parts and Harness Connector LocationBKS001OP
System DescriptionBKS001OQ

BCM (Body Control Module) controls front fog lamp operation.

IPDM E/R (Intelligent Power Distribution Module Engine Room) operates front fog lamp according to CAN
communication signals from BCM.

Unified meter and A/C amp. operates front fog lamp indicator according to CAN communication signals.
OUTLINE
Power is supplied at all times

to ignition relay (located in IPDM E/R), from battery direct,

through 15A fuse (No. 88, located in IPDM E/R)

to front fog lamp relay (located in IPDM E/R),

through 15A fuse (No. 71, located in IPDM E/R)

to CPU (central processing unit) located in IPDM E/R,

through 15A fuse (No. 78, located in IPDM E/R)

to CPU located in IPDM E/R,

through 50A fusible link (letter M, located in fuse and fusible link block)

to BCM terminal 55,

through 15A fuse [No. 17, located in fuse block (J/B)]

to BCM terminal 42 and

to combination meter terminal 7.
PKID0046E

FRONT FOG LAMP
LT-127
C
D
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F
G
H
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MA
B
LT

When the ignition switch is in ON or START position, power is supplied

to ignition relay (located in IPDM E/R),

through 10A fuse [No. 1, located in fuse block (J/B)]

to BCM terminal 38,

through 10A fuse [No. 14, located in fuse block (J/B)]

to combination meter terminal 8.
When the ignition switch is in ACC or ON position, power is supplied

through 10A fuse [No. 6, located in fuse block (J/B)]

to BCM terminal 11.
Ground is supplied

to BCM terminal 52 and

to combination meter terminals 10, 11 and 12

through grounds M71 and M72,

to IPDM E/R terminals 38 and 60

through grounds E1 and E31.
FRONT FOG LAMP OPERATION
When the lighting switch is in front fog lamp ON position and also in 1ST or 2ND position or AUTO position
(headlamp is ON), BCM detects FR FOG (ON) and the HEAD LAMP1, 2 (ON) or the AUTO LIGHT (ON) by
BCM combination switch reading function. And then, BCM sends front fog lamp request signal (ON) through
CAN communication.
When receiving front fog lamp request signal (ON), IPDM E/R turns ON front fog lamp relay in IPDM E/R. And
then, front fog lamp go ON. IPDM E/R supplies power

through IPDM E/R terminal 36

to front fog lamp RH terminal 1,

through IPDM E/R terminal 37

to front fog lamp LH terminal 1.
Ground is supplied

to front fog lamp RH and LH terminals 2

through grounds E1 and E31.
With power and ground supplied, the front fog lamp illuminates.
Unified meter and A/C amp. receives front fog lamp request signal (ON) through CAN communication, and
make front fog indicator go ON in combination meter.
COMBINATION SWITCH READING FUNCTION
Refer to BCS-3, "COMBINATION SWITCH READING FUNCTION" .
EXTERIOR LAMP BATTERY SAVER CONTROL
Refer to LT- 1 9 7 , "EXTERIOR LAMP BATTERY SAVER CONTROL" .
CAN Communication System DescriptionBKS001OR
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitBKS001OS
Refer to LAN-49, "CAN System Specification Chart" .