ignition NISSAN TEANA 2003 Service Manual

ACTIVE AFS
LT-91
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4. CHECK BENDING LAMP GROUND
Check continuity between bending lamp (RH and LH) harness con-
nector and ground.
OK or NG
OK >> Replace bending lamp bulbs.
NG >> Repair harness or connector.
Bending Lamp Does Not Illuminate (One Side)BKS002FC
1. CHECK BULB
Check bulb of bending lamp which does not illuminate.
OK or NG
OK >> GO TO 2.
NG >> Replace bending lamp bulb.
2. CHECK CIRCUIT BETWEEN AFS CONTROL UNIT AND BENDING LAMP
1. Turn ignition switch OFF.
2. Disconnect AFS control unit connector and bending lamp RH or LH connector.
3. Check harness continuity between AFS control unit harness
connector (A) and bending lamp RH or LH harness connector
(B).
OK or NG
OK >> GO TO 4.
NG >> Repair harness or connector.
3. CHECK BENDING LAMP GROUND
Check continuity between bending lamp RH or LH harness connec-
tor and ground.
OK or NG
OK >> Replace AFS control unit. Refer to LT- 9 4 , "Removal and
Installation of AFS Control Unit" .
NG >> Repair harness or connector.
AFS control unit connector Terminal
GroundContinuity
RH E50 10
Ye s
LH E51 10
PKIC9896E
CircuitAB
Continuity
Connector Terminal Connector Terminal
RH
M938E509
Ye s
LH 3 E51 9
PKIC9897E
AFS control unit connector Terminal
GroundContinuity
RH E50 10
Ye s
LH E51 10
PKIC9896E

LT-96
HEADLAMP AIMING CONTROL (AUTO)

System DescriptionBKS002BA
The height sensor is located on the right side of the rear suspension member. With the lighting switch in the
1ST or 2ND position, the height sensor detects vehicle height change by sensing the displacement of the sus-
pension arm. And the height sensor transmits a corresponding signal to the headlamp aiming motors. The sig-
nal drives the headlamp aiming motors, which adjusts the low beam reflector of each headlamp to an angle
appropriate for the vehicle height.
The aiming motor drive signal level retains when the following conditions are not met.

When the stopped vehicle changes the height and keeps it for more than 10 seconds, the height sensor
outputs a aiming motor drive signal. And height sensor keeps signal voltage to headlamp aiming motor.
Upon reception of the aiming motor drive signal, both headlamp aiming motors cause the low beam reflec-
tors to move to the position commanded by the signal.

When the vehicle is running (excluded when accelerating/decelerating), the height sensor transmits aim-
ing 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 aiming motor drive signal, both headlamp aiming motors cause the low beam reflec-
tors to move to the position commanded by the signal.

When the vehicle is accelerating or decelerating, the height sensor keeps the same 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 position, the height sensor retains the aiming motor drive signal level
at that moment and stops transmitting the signal.
OUTLINE
Power is supplied at all times

to ignition relay [located in IPDM E/R (Intelligent Power Distribution Module Engine Room)], from battery
direct,

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

to tail lamp relay (located in IPDM E/R) and

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

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

to CPU 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.
With the ignition switch in the 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. 12, located in fuse block (J/B)]

to height sensor terminal 2.
With the ignition switch 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

through grounds M71 and M72,

to IPDM E/R terminals 38 and 60

through grounds E1 and E31,

to height sensor terminal 1

through grounds B214 and B217.

HEADLAMP AIMING CONTROL (AUTO)
LT-103
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Terminals and Reference Values for Height SensorBKS002BF
How to Proceed With Trouble DiagnosisBKS002BG
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 9 6 , "
System Description" .
3. Perform self-diagnosis by CONSULT-II. Refer to LT- 1 0 5 , "
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
CONSULT-II Functions (HEADLAMP LEVELIZER)BKS002BH
CONSULT-II can display each diagnostic item using the diagnostic test mode shown following.
CONSULT-II BASIC OPERATION
Refer to GI-34, "CONSULT-II Start Procedure" .
WORK SUPPORT
Display Item List
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
1 B Ground ON — —
2 G Ignition switch (ON) ON — Battery voltage
4 V/W Vehicle speed signal ON about 40 km/h (25 MPH)
5OK-line — — —
6 R/L Tail lamp signal —Lighting switch 1ST
positionOFF 2 V or less
ON Battery voltage
7 L/Y Aiming motor drive signal ONCombination switch
1ST vehicle speed
0 km/h (0 MPH)Unloaded vehicle
positionApprox. 10.6 V
Maximum laden
conditionApprox.1.9 V
PKIA1935E
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.)
Item Description
SENSOR INITIALISEMake it memorize height sensor stroke of unloaded vehicle condition.
Perform when replacing height sensor.

HEADLAMP AIMING CONTROL (AUTO)
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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 “HEAD LAMP LEVELIZER” on “SELECT SYSTEM” screen.
2. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE” screen.
3. 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.
CONSULT-II screen display 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, 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).
[B2080]
[ECU TROUBLE]ECU error of the height sen-
sor.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- 1 2 0 , "
Removal and
Installation of Height
Sensor" .
[B2081]
[INITIAL NOT DONE]Initialization has not com-
pleted.
NOSet and maintain light axis downward.Refer to LT-112, "
DTC
B2081 [INITIAL NOT
DONE]" .
[B2082]
[SENSOR OUT OF
RANGE]Vehicle height detected by
height sensor is unusual.Set and maintain
light axis down-
ward.Maintain a current
position of light
axis.Refer to LT-112, "
DTC
B2082 [SENSOR OUT
OF RANGE]" .

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

HEADLAMP AIMING CONTROL (AUTO)
LT-109
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4. CHECK DIAGNOSIS RESULT - 2
1. Select “HEAD LAMP LEVELIZER” on CONSULT-II, and select “SELF-DIAG RESULTS” on “SELECT
DIAG MODE” screen.
2. Check display content in self-diagnostic results.
Is DTC detected?
YES >> Check with obeying indicated DTC. Refer to LT- 1 0 5 ,
"SELF-DIAG RESULTS" .
NO >> GO TO 5.
5. CHECK FRONT COMBINATION LAMP INPUT SIGNAL
1. Turn ignition switch OFF.
2. Disconnect front combination lamp (RH and LH) connectors.
3. Select “HEAD LAMP LEVELIZER” on CONSULT-II, and select “ACTIVE TEST” on “SELECT DIAG
MODE” screen.
4. Touch “LAMP TEST”.
5. Check voltage between front combination lamp (RH and LH)
harness connectors and ground for each of “UP”, “MID”, and
“DOWN” active test positions.
OK or NG
OK >> GO TO 6.
NG >> 1. There is no change even though voltage is from about 2.5 V through 10.0 V.
: Replace height sensor, and initialize it. Refer to LT- 1 2 0 , "
Removal and Installation of Height
Sensor" .
2. Voltage is 0 V.
: GO TO 8.
PKIB0115E
PKIB0117E
Terminals
Condition Voltage (+)
(−)
Front combination
lamp connectorTerminal
E15 (RH)
E29 (LH)6 GroundUP Approx. 10.0 V
MID Approx. 6.3 V
DOWN Approx. 2.5 V
SKIB8817E

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)
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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-112
HEADLAMP AIMING CONTROL (AUTO)

DTC B2081 [INITIAL NOT DONE]BKS002CR
1. INITIALIZE HEIGHT SENSOR
1. Turn ignition switch OFF.
2. Set the vehicle in unloaded condition. (Removal all loads in passenger and trunk rooms.)
3. Select “HEAD LAMP LEVELIZER” on CONSULT-II, and select “WORK SUPPORT” on “SELECT DIAG
MODE” screen.
4. Select “SENSOR INITIALISE” on “SELECT WORK ITEM” screen.
5. Touch “WRITE”.
6. When “INITIALISE COMPLETE” is indicated, touch “END”.
OK or NG
OK >> INSPECTION END
NG >>

When “INCORRECT CONDITION” is displayed,
check connect CONSULT-II and height sensor con-
nector, and then initialize again. Refer to LT- 1 0 3 ,
"WORK SUPPORT" .

When “INITIALISE NOT DONE“ is displayed, initialize
again. If “ INITIALISE NOT DONE” is displayed again,
replace height sensor and initialize it. Refer to LT- 1 2 0 ,
"Removal and Installation of Height Sensor" .
DTC B2082 [SENSOR OUT OF RANGE]BKS002CS
1. CHECK HEIGHT SENSOR
1. Select “HEAD LAMP LEVELIZER” on CONSULT-II and “DATA MONITOR” on “SELECT DIAG MODE”
screen.
2. Lighting switch is turned 1ST position.
3. Check “INT SEN VALUE” in unloaded condition. (Remove all
loads in the passenger and trunk room.)
OK or NG
OK >> Erase the self-diagnosis result and perform the self-
diagnosis again.

[B2082] is displayed again: Replace height sensor,
and initialize it. Refer to LT-120, "
Removal and Instal-
lation of Height Sensor" .

NO DTC is displayed: INSPECTION END
NG >> GO TO 2.
2. CHECK INSTALLATION CONDITION OF HEIGHT SENSOR
Check height sensor and linkage for deformation or damage.
NOTE:
[B2082] may be displayed when the vehicle is lifted up.
OK or NG
OK >> Replace height sensor, and initialize it. Refer to LT- 1 2 0 , "Removal and Installation of Height Sen-
sor" .
NG >> Adjust height sensor, or replace height sensor, and initialize it. Refer to LT- 1 2 0 , "
Removal and
Installation of Height Sensor" .
PKIC0537E
INT SEN VALUE : Should not be approx. 0% or
approx. 100%.
PKIB7209E