2005 NISSAN X-TRAIL sensor

HEADLAMP AIMING CONTROL (AUTO)
LT-63
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HEADLAMP AIMING CONTROL (AUTO)PFP:53821
Component Parts and Harness Connector LocationEKS00N5W
System DescriptionEKS00N5X
With the lighting switch in the 1ST or 2ND position, the height sensor detects change in the vehicle height and
transmits a corresponding signal to the headlamp aiming motors. The signal drives the headlamp aiming
motors, which adjusts the low beam reflector of each headlamp to an angle appropriate for the vehicle height.
When the vehicle is stationary, the motors move the reflectors if the vehicle height changes to a certain height
and the height is maintained for a predetermined period. When the vehicle is running (excluded when acceler-
ating/decelerating), the reflector angle is adjusted at predetermined intervals.
OUTLINE
Power is supplied at all times

through 10A fuse (No. 31, located in fuse and fusible link box)

to lighting switch terminal 11, and

to daytime light control unit terminal 1 (with daytime light system).
With the ignition switch in the ON or START position, power is supplied

through 10A fuse [No. 5, located in fuse block (J/B)]

to height sensor terminal 1, and

to headlamp aiming motor RH and LH terminal 1.
Ground is supplied

to height sensor terminal 5

through grounds B107 and B119,

to headlamp aiming motor RH and LH terminal 3
PKIC0425E

LT-64
HEADLAMP AIMING CONTROL (AUTO)


through grounds E24 and E50.
HEADLAMP AIMING CONTROL OPERATION
The height sensor is located on the right side of the rear suspension member and detects vehicle height
change by sensing the displacement of the suspension arm.
When the ignition switch is turned to the ON position, power is supplied

through 10A fuse [No. 5 located in fuse block (J/B)]

to height sensor terminal 1, and

to headlamp aiming motor RH and LH terminal 1.
At the same time, the vehicle height signal (voltage signal that corresponds to the vehicle height) is applied

through height sensor terminal 3

to headlamp aiming motor RH and LH terminal 2.
Ground is supplied

to headlamp aiming motor RH and LH terminal 3

through grounds E24 and E50,

to height sensor terminal 5

through grounds B107 and B119.
And the voltage level of this signal is maintained.
When the lighting switch is placed in the 1ST or 2ND position, power is supplied (without daytime light system)

through lighting switch terminal 12

to height sensor terminal 8.
When the lighting switch is placed in the 1ST or 2ND position, power is supplied (with daytime light system)

through lighting switch terminal 12

to daytime light control unit terminal 11

through daytime light control unit terminal 10

to height sensor terminal 8.
Ground is supplied

to height sensor terminal 5

through grounds B107 and B119.
The height sensor starts the aiming control.
When the stopped vehicle changes the height and keeps it for more than 10 seconds, the height sensor out-
puts a headlamp aiming motor drive signal. And height sensor keeps signal voltage to headlamp aiming motor.
(Voltage depends on the vehicle height.)
Upon reception of the headlamp aiming motor drive signal, both headlamp aiming motors cause the low beam
reflectors to move to the position commanded by the signal.
When the vehicle is running (excluded when accelerating/decelerating), the height sensor transmits headlamp
aiming motor drive signal to headlamp aiming motors at the predetermined intervals. The voltage level of
every signal input is maintained unchanged until the next signal is input.
Upon reception of the headlamp aiming motor drive signal, both headlamp aiming motors cause the low beam
reflectors to move to the position commanded by the signal.
When the vehicle is accelerating or decelerating, the height sensor keeps the same headlamp aiming motor
drive signal voltage level rather than changing it, so that the low beam reflectors of both headlamps do not
operate.
When the lighting switch is turned OFF, the height sensor retains the headlamp aiming motor drive signal level
at that moment and stops transmitting the signal.
Height Sensor Control Operation
*1 Included when running at to 4 km/h (2.48 MPH) or less, but exclude when accelerating/decelerating.
*2 Included when running at more than 4 km/h (2.48 MPH), but exclude when accelerating/decelerating.height sensor
operating
control interval Vehicle is stopped *1 Headlamp aiming motor starts after vehicle is stopped for approx. 10 seconds.
Vehicle is running *2Up to 31 seconds, and
every 10 seconds
after starting running
with a constant speedAbout 41
secondsAbout 82
secondsAbout 161
secondsAbout 323
secondsAfter 323 seconds
or more, every 323
seconds

LT-68
HEADLAMP AIMING CONTROL (AUTO)

Terminals and Reference Values of Daytime Light Control UnitEKS00N60
*: Daytime light operating : Lighting switch in OFF position with engine running.
Terminals and Reference Values for Height SensorEKS00N62
How to Proceed With Trouble DiagnosisEKS00N63
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 6 3 , "
System Description" .
3. Perform self-diagnosis by CONSULT-II. Refer to LT- 7 1 , "
SELF-DIAG RESULTS" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the headlamp aiming control operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Terminal
No.Wire color Connections Operated condition Voltage
1G/WPower source for illumination & tail
lamp— Battery Voltage
10 R/L Illumination & tail lampON (daytime light operating*) Battery voltage
OFF Approx. 0V
11 R/L Lighting switch1ST·2ND position Battery voltage
OFF Approx. 0V
Terminal
No.Wire color Signal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
1 Y Ignition switch (ON) ON — Battery voltage
2 L Vehicle speed signal ON about 40 km/h (25 MPH)
3WOutput signal for aiming
motorONLighting switch 1ST position
and vehicle speed 0 km/h
(0 MPH)Approx. 5.8 - 9.4V
5 B Ground ON — —
7RK − LINE — — —
8 G Tail lamp signal —Lighting switch
1ST positionOFF 2V or less
ON Battery voltage
PKIA1935E

HEADLAMP AIMING CONTROL (AUTO)
LT-69
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CONSULT-II Functions (HEADLAMP LEVELIZER)EKS00N64
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II BASIC OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and CON-
SULT-II CONVERTER to the data link connector, and then turn
the ignition switch ON.
2. Touch “START (NISSAN BASED VHCL)”.
3. Touch “HEAD LAMP LEVELIZER” on “SELECT SYSTEM”
screen. If “HEAD LAMP LEVELIZER” is not indicated, refer to
GI-35, "
CONSULT-II Data Link Connector (DLC) Circuit" .
Diagnosis mode Description
WORK SUPPORT Height sensor can be initialized.
SELF-DIAG RESULTS The result of self-diagnosis for height sensor can be displayed and erased.
DATA MONITOR Displays height sensor inputs and outputs in real time.
ACTIVE TEST Operation of headlamp aiming motor can be confirmed with “MAX”, “MID” or “MIN” touched.
ECU PART NUMBER Height sensor part number can be read.
CONFIGURATION (Not be used.)
PBIB1300E
BCIA0029E
BCIA0030E

LT-70
HEADLAMP AIMING CONTROL (AUTO)

WORK SUPPORT
Display Item List
Operation Procedure
Height sensor initialize
1. Set the vehicle in unladen condition. (Removal all loads in driver, passenger and trunk rooms.)
2. Touch “HEAD LAMP LEVELIZER” on “SELECT SYSTEM” screen.
3. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
4. Touch “SENSOR INITIALISE”.
5. Touch “WRITE”.
6. “INITIALISE COMPLETE” will be displayed.
7. Touch “END”.
Instruction of initialized results
DATA MONITOR
Operation Procedure
1. Touch “HEADLAMP LEVELIZER” on “SELECT SYSTEM” screen.
2. Touch “DATA MONITOR” on “SELECT DIAG MODE” screen.
3. Touch either “ALL SIGNALS” or “SELECTION FROM MENU” on “SELECT MONITOR ITEM” screen.
4. When “SELECTION FROM MENU” is selected, touch items to be monitored. When “ALL SIGNALS” is
selected, all the items will be monitored.
5. Touch “START”.
6. Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop
recording, touch “STOP”.
Display Item List
Item Description
SENSOR INITIALISEMake it memorize height sensor stroke of unloaded vehicle condition.
Perform when replacing height sensor.
Item Description of indications
INITIALISE COMPLETE Initialization completed.
INCORRECT CONDITION Improper condition. (Wrong connection of height sensor connector or CONSULT-II connector.)
NO CAR TYPE SELECT Program error of the height sensor.
INITIALISE NOT DONE Initialization uncompleted.
ALL SIGNALS Monitors all the signals.
SELECTION FROM MENU Selects items and monitors them.
Monitor item Contents
INT SENSOR VALUE “%”Displays the ratio between the maximum sensor lever angle which the height sensor can recognize
and the current sensor angle.
ACT OUTPUT “%”Displays the ratio between the headlamp aiming motor drive signal voltage calculated by the height
sensor and the height sensor power supply voltage.
ACT MEASURED “%”Displays the ratio between the headlamp aiming motor drive signal voltage and the height sensor
power supply voltage.
SPEED SIG “km/h” Displays vehicle speed calculated from the vehicle speed signal (8-pulse).
LIGHT SIGNAL “V”Displays the condition either “tail lamps ON (power supply voltage) ” or “tail lamps OFF (2 V or less)”
judged from the tail lamp signal.
INT SEN VOLT “V” Displays the condition of IGN power supply.
EXT SEN VOLT
NOTE“V” —
EXT SEN SIG
NOTE“V” —

HEADLAMP AIMING CONTROL (AUTO)
LT-71
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NOTE:
This item is displayed, but does not function.
ACTIVE TEST
Operation Procedure
1. Touch “HEAD LAMP LEVELIZER” on “SELECT SYSTEM” screen.
2. Touch “ACTIVE TEST” on “SELECT DIAG MODE” screen.
3. Touch “LAMP TEST”, then “MAX”, “MID” or “MIN” to change aiming line.
4. Touch “END” after the test.
Display Item List
SELF-DIAG RESULTS
Operation Procedure
1. Touch “SELF-DIAG RESULTS” on the “SELECT DIAG MODE” screen.
2. Check display content in self-diagnostic results.
Description of DTC and Solutions after Detection
CONSULT-II can detect DTC (Diagnosis trouble code). The descriptions and solutions of DTC are listed
below.
Item (CONSULT-II screen terms) Test item Description
LAMP TEST Aiming direction changeOperation of headlamp aiming motor can be confirmed with
“MAX”, “MID” or “MIN” touched.
Details of error
indication
detected
by CONSULT-IIConditions of
error detectionCode
storageFail-safe
Reference Within 5 seconds
after ignition switch
ON, or vehicle speed
less than or equal to
4 km/h (2.48 MPH).5 seconds and more
after ignition switch
ON, or vehicle
speed more than to
4 km/h (2.48 MPH).
[B2080]
[ECU TROUBLE]ECU error of the
height sensor.YES

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- 8 6 , "Removal and Installation of
Height Sensor" .
[B2081]
[INITIAL NOT DONE]Initialization has not
completed.
NO Set and maintain light axis downward.Refer to LT- 7 8 , "
DTC B2081
[INITIAL NOT DONE]" .
[B2082]
[SENSOR OUT OF
RANGE]Vehicle height
detected by height
sensor is unusual.Refer to LT- 7 9 , "
DTC B2082
[SENSOR OUT OF RANGE]"
.

LT-72
HEADLAMP AIMING CONTROL (AUTO)

CAUTION:

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

As for [B2084] to [B2088], perform fail-safe only when having a current abnormality. [B2083]
[SEN SIG NOT
PLAUSIBLE]Vehicle height
detected by height
sensor while run-
ning does not
change more than 5
minutes stretch.
YESMaintain a current position of light axis.Refer to LT-79, "
DTC B2083
[SEN SIG NOT PLAUSIBLE]"
.
[B2084]
[VOLTAGE UNDER
LIMIT]Voltage of height
sensor terminal 1
kept having less
than or equal to 9 V
for 1.5 seconds and
over.
Set and maintain
light axis downward.Maintain a current
position of light axis.Refer to LT-80, "
DTC B2084
[VOLTAGE UNDER LIMIT]" .
[B2085]
[LOW BEAM SIG
OPEN LINE]height sensor termi-
nal 8 had less than
6 V at lighting
switch 1ST, or had
more than 2V for
1.5 seconds or
more at lighting
switch OFF.Refer to LT-81, "
DTC B2085
[LOW BEAM SIG OPEN
LINE]" .
[B2086]
[FRQ. OVER LIMIT]Vehicle speed sig-
nal kept showing
over 340 km/h
(221.3 MPH) for
more than 1.5 sec-
onds. Refer to LT-82, "
DTC B2086
[FRQ. OVER LIMIT]" .
[B2087]
[SHORT TO
GROUND]height sensor termi-
nal 3 had short-cir-
cuit with a ground
more than 1.5 sec-
onds.
Maintain a current position of light axis.Refer to LT-82, "
DTC B2087
[SHORT TO GROUND]" .
[B2088]
[SHORT TO BAT-
TERY]height sensor termi-
nal 3 had short-cir-
cuit with a power
supply line more
than 1.5 seconds.Refer to LT-84, "
DTC B2088
[SHORT TO BATTERY]" .
[B208A]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- 8 6 , "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, or vehicle speed
less than or equal to
4 km/h (2.48 MPH).5 seconds and more
after ignition switch
ON, or vehicle
speed more than to
4 km/h (2.48 MPH).

HEADLAMP AIMING CONTROL (AUTO)
LT-73
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Check Aiming Control SystemEKS00N65
*1 Refer to FSU-5, "FRONT SUSPEN-
SION ASSEMBLY" i n “ F S U se c ti o n”
and RSU-5, "
REAR SUSPENSION
ASSEMBLY" in“ RSU section”.*2 Refer to LT- 8 6 , "
Removal and Instal-
lation of Height Sensor" .*3 Refer to LT-71, "
SELF-DIAG
RESULTS" .
*4 Refer to LT-71, "
Description of DTC
and Solutions after Detection" . *5 Refer to LT- 7 1 , "
ACTIVE TEST" . *6 Refer to LT-21, "Removal and Instal-
lation of Headlamp" in “HEADLAMP
-XENON TYPE-”.
PKIC0426E