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-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).
HARNESS
PG-67
C
D
E
F
G
H
I
J
L
MA
B
PG
NATS BL Nissan Anti-Theft System
NAVI AV Navigation System
NONDTC AT Non-Detective Items
OVRCSV AT Overrun Clutch Solenoid Valve
P/SCKT WW Power Socket
PGC/V EC EVAP Canister Purge Volume Control Solenoid Valve
PHASE EC Camshaft Position Sensor (PHASE)
PHONE AV Telephone (Pre-wire)
PNP/SW AT Park/Neutral Position Switch
PNP/SW EC Park/Neutral Position Switch
PNPSW1 EC Park/Neutral Position Switch
POS EC Crankshaft Position Sensor (CKPS) (POS)
POWER PG Power Supply Routing
PRGVLV EC EVAP Canister Purge Volume Control Solenoid Valve
PRWIRE BL Theft Warning System (Pre-wire)
PS/SEN EC Power Steering Pressure Sensor
PST/SW EC Power Steering Oil Pressure Switch
R/FOG LT Rear Fog Lamp
ROOM/L LT Interior Room Lamp
RP/SEN EC Refrigerant Pressure Sensor
RRO2 EC Rear Heated Oxygen Sensor
RRO2/H EC Rear Heated Oxygen Sensor Heater
S/LOCK BL Power Door Lock - Super Lock
S/SIG EC Start Signal
S/WARN SB Seat Belt Warning System
SEAT SE Power Seat
SEN/PW EC Sensor Power Supply
SHIFT AT A/T Shift Lock System
SROOF RF Sunroof
SRS SRS Supplemental Restraint System
SSV/A AT Shift Solenoid Valve A
SSV/B AT Shift Solenoid Valve B
START SC Starting System
STEP/L LT Step Lamp
STOP/L LT Stop Lamp
TAIL/L LT Parking, License and Tail Lamps
TCC/V EC Turbocharger Boost Control Solenoid Valve
TCCSV EC Turbocharger Boost Control Solenoid Valve
TCV AT Torque Converter Clutch Solenoid Valve
TPS AT Throttle Position Sensor
TPS1 EC Throttle Position Sensor (Sensor 1)
TPS2 EC Throttle Position Sensor (Sensor 2)
TPS3 EC Throttle Position Sensor
TURN LT Turn Signal and Hazard Warning LampCode Section Wiring Diagram Name
IDX-8
ALPHABETICAL INDEX
Spark plug(QR20DE-QR25DE) ........................ EM-32
Specification value ............................. EC-120, EC-620
Speedometer ........................................................ DI-4
Spiral cable ..................................................... SRS-33
SROOF - Wiring diagram ................................... RF-11
SRS - See Supplemental Restraint System ..... SRS-6
SRS - Wiring diagram/LHD ............................. SRS-11
SRS - Wiring diagram/RHD ............................ SRS-13
SRS Trouble diagnoses .................................... SRS-8
Stall test (A/T) ...................................... AT-65, AT-257
Standardized relay ............................................. PG-77
START - Wiring diagram ........................ SC-24, SC-25
Start signal ..................................... EC-1345, EC-1696
Starter ................................................................ SC-23
Starting system .................................................. SC-23
Steering gear and linkage inspection ................ MA-45
Steering knuckle ................................................ FAX-7
Steering linkage ................................................. PS-16
Steering wheel and column ..................... PS-8, PS-11
Steering wheel turning force ................................ PS-8
Stop lamp .............................................. LT-98, LT-118
Stop lamp switch ................................ EC-405, EC-809
STOP/L - Wiring diagram ...................... LT-98, LT-118
Suction control valve .... EC-1231, EC-1275, EC-1280,
EC-1570
, EC-1614, EC-1619
Sunload sensor ............. ATC-114, ATC-116, ATC-123
Sunroof .............................................................. RF-10
Super lock .......................................................... BL-42
Supplemental Restraint System ....................... SRS-6
Supplemental restraint system - Wiring diagram/LHD ..
SRS-11
Supplemental restraint system - Wiring diagram/RHD .
SRS-13
Suspension ....................................................... MA-46
Symbols and abbreviations ........................ GI-9, GI-22
Symptom matrix chart .......................... EC-84, EC-584
Synchronizer (M/T) ............................... MT-23, MT-41
System readiness test (SRT) code .................... EC-56
T
Tachometer ........................................................... DI-4
Tail lamp ............................................. LT-103, LT-116
TAIL/L - Wiring diagram ...................... LT-103, LT-145
Tailgate lamp .................................................... LT-103
TC boost control solnoid valve ...... EC-1061, EC-1506,
EC-1659
TC boost sensor ............................................ EC-1151
TCC/V - Wiring diagram ................. EC-1062, EC-1660
TCM circuit diagram ........................................... AT-21
TCM inspection table ........................... AT-94, AT-286
THEFT - Wiring diagram .................................. BL-104
Thermal protector ............................................ ATC-95
Thermostat(QR20DE-QR25DE) ....................... CO-23
Thermostat(YD22DDTi) .................................... CO-46
Three way catalyst function ............................. EC-264
Three way catalyst precautions ............................ GI-5
Three way catalyst(QR20DE-QR25DE) ........... EM-25
Throttle control motor relay ................ EC-306, EC-737
Throttle position sensor (TPS) ......... EC-171, EC-231,
EC-368
, EC-370, EC-424, EC-658, EC-680, EC-771,
EC-773
, EC-830
Throwout bearing - See Clutch release bearing CL-14
Time control system .......................................... BCS-3
Timing chain(QR20DE-QR25DE) ..................... EM-46
Timing chain(YD22DDTi) .................. EM-193, EM-198
Torque converter installation ............. AT-415, AT-523
TPS1 - Wiring diagram ..................... EC-233, EC-682
TPS2 - Wiring diagram ..................... EC-173, EC-660
TPS3 - Wiring diagram ..................... EC-426, EC-832
Transmission case (M/T) ...................... MT-22, MT-40
Trouble diagnoses .............................................. GI-10
Turbocharger charge air cooler(YD22DDTi) ... EM-144
Turbocharger precautions ..................................... GI-6
Turbocharger(YD22DDTi) ............................... EM-151
TURN - Wiring diagram .......................... LT-87, LT-89
Turn signal lamp ................................... LT-87, LT-118
Two trip detection logic ....................... EC-52, EC-565
V
Vacuum hose (brake system) ............................ BR-25
Vacuum hose drawing (Engine control) EC-32, EC-545
Vacuum pump(YD22DDTi) ............................. EM-163
Valve clearance(QR20DE-QR25DE) ................ EM-64
Valve clearance(YD22DDTi) ........................... EM-185
Valve guide ....................................................... EM-77
Valve guide(QR20DE-QR25DE) ....................... EM-77
Valve lifter(QR20DE-QR25DE) ......................... EM-56
Valve lifter(YD22DDTi) ................................... EM-183
Valve seat(QR20DE-QR25DE) ......................... EM-79
Valve seat(YD22DDTi) ................................... EM-219
Valve spring(QR20DE-QR25DE) ...................... EM-80
Variable induction air control system (VIAS) ... EC-457,
EC-897
Vehicle speed sensor (VSS) EC-276, EC-403, EC-709,
EC-807
VIAS - Wiring diagram ...................... EC-459, EC-899
W
WARN - Wiring diagram .......................... DI-36
, DI-44
Warning chime .................................................... DI-56
Warning lamps .................................................... DI-35
Washer, front ..................................................... WW-4
Washer, rear .................................................... WW-14
Water control valve(QR20DE-QR25DE) ........... CO-23
Water pump(QR20DE-QR25DE) ...................... CO-21
Water pump(YD22DDTi) ................................... CO-43
Water temperature gauge ..................................... DI-4
Weatherstrip - See Exterior ............................... BL-21
Wheel alignment (front) .................................... FSU-6
Wheel alignment (rear) ..................................... RSU-6
Wheel balance ....................................... WT-4, MA-43
Wheel bearing (rear) ........................... RAX-6, RAX-10
Wheel hub (front) ............................................... FAX-7
Wheel hub (rear) ............................................. RAX-10
Wheel sensors (ABS) ..................................... BRC-46