ignition NISSAN TEANA 2003 Service Manual

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

HEADLAMP AIMING CONTROL (AUTO)
LT-115
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2. CHECK HEADLAMP LOW SIGNAL
1. Turn ignition switch OFF.
2. Disconnect height sensor connector.
3. Lighting switch is turned 1ST position.
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 B2086 [FRQ. OVER LIMIT]BKS002CW
1. CHECK HEIGHT SENSOR
1. Start engine and place vehicle in a driving condition.
2. Select “HEAD LAMP LEVELIZER” on CONSULT-II and “DATA MONITOR” on “SELECT DIAG MODE”
screen.
3. Check the vehicle speed on “SPEED SIG” screen.
OK or NG
OK >> Erase the self-diagnosis. After drive the vehicle more
than 5 minutes, perform the self-diagnosis again.

[B2086] is displayed again: Replace height sensor,
and initialize it. Refer to LT- 1 2 0 , "
Removal and Instal-
lation of Height Sensor" .

NO DTC is displayed: INSPECTION END
NG >> GO TO 2.
Terminal
Voltage (+)
(-)
Height sensor
connectorTerminal
C4 6 Ground Battery voltage
SKIB8821E
SPEED SIG : Correct vehicle speed should be
displayed.
PKIB7209E

HEADLAMP AIMING CONTROL (AUTO)
LT-117
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2. CHECK HEADLAMP LEVELIZER
1. Turn ignition switch OFF.
2. Disconnect front combination lamp (RH and LH) connectors.
3. Select “HEAD LAMP LEVELIZER” on CONSULT-II and “DATA MONITOR” on “SELECT DIAG MODE”
screen.
4. Check if “ACT OUTPUT” and “ACT MEASURED” indicated the
same value.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK SHORT CIRCUIT BETWEEN HEIGHT SENSOR AND HEADLAMP LEVELIZER
1. Turn ignition switch OFF.
2. Disconnect height sensor connector.
3. 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.
4. CHECK FRONT COMBINATION LAMP RH
1. Turn ignition switch OFF.
2. Connect front combination lamp RH connector.
3. Check if “ACT OUTPUT” and “ACT MEASURED” indicated the
same value.
OK or NG
OK >> GO TO 5.
NG >> Replace front combination lamp RH. Refer to LT- 3 6 ,
"Removal and Installation" .
PKIB7209E
Height sensor
connectorTerminal
GroundContinuity
C4 7 No
SKIB8823E
PKIB7209E

LT-118
HEADLAMP AIMING CONTROL (AUTO)

5. CHECK FRONT COMBINATION LAMP LH
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH connector.
3. Connect front combination lamp LH connector.
4. Check if “ACT OUTPUT” and “ACT MEASURED” indicated the
same value.
OK or NG
OK >> Replace height sensor, and initialize it. Refer to LT- 1 2 0 ,
"Removal and Installation of Height Sensor" .
NG >> Replace front combination lamp LH. Refer to LT- 3 6 ,
"Removal and Installation" .
DTC B2088 [SHORT TO BATTERY]BKS002CY
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 if “ACT OUTPUT” and “ACT MEASURED” indicated the
same value.
NOTE:
If shorted to battery, “ACT MEASURED” indicates approx.
100%.
OK or NG
OK >> Erase the self-diagnosis and perform the self-diagnosis
again.

[B2088] 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 HEADLAMP LEVELIZER
1. Turn ignition switch OFF.
2. Lighting switch is turned OFF position.
3. Disconnect front combination lamp (RH and LH) connectors.
4. Select “HEAD LAMP LEVELIZER” on CONSULT-II and “DATA MONITOR” on “SELECT DIAG MODE”
screen.
5. Lighting switch is turned 1ST position.
6. Check if “ACT OUTPUT” and “ACT MEASURED” indicated the
same value.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
PKIB7209E
PKIB7209E
PKIB7209E

HEADLAMP AIMING CONTROL (AUTO)
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3. CHECK SHORT CIRCUIT BETWEEN HEIGHT SENSOR AND HEADLAMP LEVELIZER
1. Turn ignition switch OFF.
2. Lighting switch is turned OFF position.
3. Disconnect height sensor connector.
4. Turn ignition switch ON.
5. 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.
4. CHECK FRONT COMBINATION LAMP RH
1. Turn ignition switch OFF.
2. Connect front combination lamp RH connector.
3. Check if “ACT OUTPUT” and “ACT MEASURED” indicated the
same value.
OK or NG
OK >> GO TO 5.
NG >> Replace front combination lamp RH. Refer to LT- 3 6 ,
"Removal and Installation" .
5. CHECK FRONT COMBINATION LAMP LH
1. Turn ignition switch OFF.
2. Disconnect front combination lamp RH connector.
3. Connect front combination lamp LH connector.
4. Check if “ACT OUTPUT” and “ACT MEASURED” indicated the
same value.
OK or NG
OK >> Replace height sensor, and initialize it. Refer to LT- 1 2 0 ,
"Removal and Installation of Height Sensor" .
NG >> Replace front combination lamp LH. Refer to LT- 3 6 ,
"Removal and Installation" .
Terminal
Voltage (+)
(-)
Height sensor
connectorTerminal
C4 7 Ground Approx. 0 V
SKIB8824E
PKIB7209E
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
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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" .

LT-132
FRONT FOG LAMP

Terminals and Reference Values for BCMBKS001OV
CAUTION:

Check combination switch system terminal waveform under the loaded condition with lighting
switch, turn signal switch and wiper switch OFF not to be fluctuated by overloaded.

Turn wiper intermittent dial position to 4 except when checking waveform or voltage of wiper inter-
mittent dial position. Wiper intermittent dial position can be confirmed on CONSULT-II. Refer to LT-
184, "DATA MONITOR" .
Te r -
minal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
3R/YCombination switch
input 4ONLighting, turn, wiper
switch
(Wiper intermittent
dial position 4)OFF Approx. 0 V
Lighting switch front
fog lamp ON position
(Operates only fog
lamp switch)
Approx. 1.0 V
11 V Ignition switch (ACC) ACC — Battery voltage
32 LG/BCombination switch
output 5ONLighting, turn, wiper
switch
(Wiper intermittent
dial position 4)OFF
Approx. 7.2 V
Lighting switch front
fog lamp ON position
(Operates only fog
lamp switch)
Approx. 1.0 V
38 R Ignition switch (ON) ON — Battery voltage
39 L CAN-H — — —
40 P CAN-L — — —
42 Y/R Battery power supply OFF — Battery voltage
52 B Ground ON — Approx. 0 V
55 W/B Battery power supply OFF — Battery voltage
PKIB4955J
PKIB4960J
PKIB4956J

FRONT FOG LAMP
LT-133
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Terminals and Reference Values for IPDM E/RBKS001OW
How to Perform Trouble DiagnosisBKS001OX
1. Confirm the symptom or customer complaint.
2. Understand operation description and function description. Refer to LT- 1 2 6 , "
System Description" .
3. Perform the Preliminary Check. Refer to LT- 1 3 3 , "
Preliminary Check" .
4. Check symptom and repair or replace the cause of malfunction.
5. Does the front fog lamp operate normally? If YES, GO TO 6. If NO, GO TO 4.
6. INSPECTION END
Preliminary CheckBKS001OY
CHECK POWER SUPPLY AND GROUND CIRCUIT
1. CHECK FUSES AND FUSIBLE LINK
Check for blown fuses and fusible link.
Refer to LT-129, "Wiring Diagram — F/FOG —" .
OK or NG
OK >> GO TO 2.
NG >> If fuse or fusible link is blown, be sure to eliminate cause of malfunction before installing new fuse
or fusible link. Refer to PG-3, "
POWER SUPPLY ROUTING CIRCUIT" .
Terminal
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
36 W/R Front fog lamp (RH) ONLighting switch front fog lamp ON
position
(when lighting switch is 1ST position)OFF Approx. 0 V
ON Battery voltage
37 L/Y Front fog lamp (LH) ONLighting switch front fog lamp ON
position
(when lighting switch is 1ST position)OFF Approx. 0 V
ON Battery voltage
38 B Ground ON — Approx. 0 V
48 L CAN-H — — —
49 P CAN-L — — —
60 B Ground ON — Approx. 0V
Unit Power source Fuse and fusible link No.
BCMBatteryM
17
Ignition switch ACC or ON position 6
Ignition switch ON or START position 1
IPDM E/R Battery 88