2003 NISSAN TEANA sensor

LT-72
AUTO LIGHT SYSTEM

3. PERFORM BCM SELF-DIAGNOSIS
Select “BCM” on CONSULT-II, and perform self-diagnosis for
“BCM”.
Displayed self
-diagnosis results
NO DTC>>GO TO 4.
CAN COMM CIRCUIT>>Refer to LAN-49, "
CAN System Specifica-
tion Chart" .
4. CHECK CIRCUIT BETWEEN COMBINATION SWITCH AND BCM
With CONSULT-II
1. Select “BCM” on CONSULT-II, and select “HEAD LAMP” on “SELECT TEST ITEM” screen.
2. Select “DATA MONITOR” on “SELECT DIAG MODE” screen.
Make sure “AUTO LIGHT SW” turns ON–OFF according to light-
ing switch operation.
Without CONSULT-II
Refer to LT- 1 8 5 , "
Combination Switch Inspection" .
OK or NG
OK >> Replace BCM. Refer to BCS-16, "Removal and Installa-
tion of BCM" .
NG >> Check combination switch (lighting switch). Refer to LT- 1 8 5 , "
Combination Switch Inspection" .
5. CHECK CIRCUIT BETWEEN BCM AND OPTICAL SENSOR
1. Turn ignition switch OFF.
2. Disconnect BCM connector and optical sensor connector.
3. Check continuity between BCM harness connector (A) and opti-
cal sensor harness connector (B).
4. Check continuity between BCM harness connector (A) and
ground.
OK or NG
OK >> GO TO 6.
NG >> Repair harness or connector.
PKIA7627E
When lighting switch is in the
AUTO position: AUTO LIGHT SW ON
PKIA7595E
AB
Continuity
Connector Terminal Connector Terminal
M317
M181
Ye s 14 2
18 3
A
GroundContinuity
Connector Terminal
M317
No 14
18
PKID0277E

AUTO LIGHT SYSTEM
LT-73
C
D
E
F
G
H
I
J
L
MA
B
LT

6. CHECK OPTICAL SENSOR OUTPUT VOLTAGE
1. Connect BCM connector and optical sensor connector.
2. Turn ignition switch ON.
3. Check difference in the voltage between BCM and ground, when
optical sensor is illuminated and not illuminated.
CAUTION:
Optical sensor must be securely subjected to work lamp
light. If the optical sensor is insufficiently illuminated, the measured value may not satisfy the
standard.
Check result
OK >> Replace BCM. Refer to BCS-16, "Removal and Installation of BCM" .
NG >> GO TO 7.
7. CHECK BCM OUTPUT VOLTAGE
Check voltage between BCM harness connector and ground.
OK or NG
OK >> GO TO 8.
NG >> Replace BCM. Refer to BCS-16, "
Removal and Installa-
tion of BCM" .
8. CHECK OPTICAL SENSOR GROUND CIRCUIT
Check voltage between BCM harness connector and ground.
OK or NG
OK >> Replace optical sensor.
NG >> Replace BCM. Refer to BCS-16, "
Removal and Installa-
tion of BCM" .
BCM connector Terminal
GroundConditionVoltage
(Approx.)
M3 14When optical sensor
is illuminated.3.1 V or more
When optical sensor
is not illuminated.0.6 V or less
PKID0086E
BCM connector Terminal
GroundVoltage
(Approx.)
M3 17 5 V
PKID0278E
BCM connector Terminal
GroundVoltage
(Approx)
M3 18 0 V
PKID0085E

LT-74
AUTO LIGHT SYSTEM

Removal and Installation for Optical SensorBKS001OK
REMOVAL
1. Remove instrument panel. Refer to IP-10, "INSTRUMENT
PANEL ASSEMBLY" .
2. Disconnect optical sensor connector.
3. Remove optical sensor.
INSTALLATION
Installation is the reverse order of removal.
SKIB0895E

LT-76
ACTIVE AFS

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 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 10A fuse (No. 38, located in fuse and fusible link block)

to AFS control unit terminal 6.
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. 12, located in fuse block (J/B)]

to steering angle sensor terminal 3 and

to AFS control unit terminal 1.
Ground is supplied

to IPDM E/R terminals 38 and 60

through grounds E1 and E31,

to steering angle sensor terminal 2 and

to AFS control unit terminal 4

through grounds M71 and M72.
BENDING LAMP OPERATION
Bending lamp right/left turn ON depending on the steering wheel angle and the vehicle speed under the oper-
ating condition. Bending lamp right/left turn OFF when the steering wheel is returned to the straight.

Operation condition

CAN communication control
AFS control unit is connected to CAN communication line, and receives the signal necessary for active
AFS control with CAN communication.
Steering wheel Lighting switch A/T or CVT shift positionBending lamp RH Bending lamp LH
Lamp ON Lamp ON
Turn to rightOFF, 1ST —
2ND
(LOW, HIGH)P range
Except P range×
Turn to leftOFF, 1ST —
2ND
(LOW, HIGH)P range
Except P range×
Ignition switch Headlamp status A/T or CVT shift position Steering wheel angle Vehicle speed
ONIlluminated
(LOW or HIGH)Except P rangeBending lamp turn ON/
OFF according to the
steering wheel angle.Steering wheel angle, which decides if
bending lamp turn ON, depends on the
vehicle speed.
Transmit unit Meter & A/C amp. Steering angle sensor TCM IPDM E/R
Signal name Vehicle speed signal Steering angle sensor signal TCM shift position signal

Headlamp LO beam signal

Headlamp HI beam signal

LT-82
ACTIVE AFS

Terminals and Reference Values for AFS Control UnitBKS002F8
CONSULT-II Functions (ADAPTIVE LIGHT)BKS002F9
CONSULT-II can display each diagnostic item using the diagnostic test mode shown below.
CONSULT-II BASIC OPERATION
Refer to GI-34, "CONSULT-II Start Procedure" .
WORK SUPPORT
Display Item List
Notes on Steering Angle Sensor (Neutral Point) Adjustment

Be sure to adjust steering angle sensor to the neutral point before driving if any of the followings is
removed/installed or replaced: AFS control unit; Steering angle sensor; Steering system part, Suspension
system part.

Steering angle sensor neutral point adjustment should be performed by using CONSULT-II. (The adjust-
ment is not operative without CONSULT-II.)
Operation Procedure (with VDC)
Perform steering angle sensor neutral point adjustment only on VDC side. Never perform the adjustment on
ADAPTIVE LIGHT side as this may lead to VDC malfunctions. If the adjustment has been performed on AFS
side, readjust on VDC side. For steering angle sensor neutral point adjustment procedures on VDC side, refer
to BRC-40, "
Adjustment of Steering Angle Sensor Neutral Position" in “ON-VEHICLE SERVICE”.
Te r m i n a l
No.Wire
colorSignal nameMeasuring condition
Reference value
Ignition
switchOperation or condition
1 G Ignition switch (ON) ON — Battery voltage
2 L CAN-H — — —
3 Y Bending lamp (LH) ONShift the lever to any position other than P
and turn lighting switch on the 2nd position,
and then turn the steering to the left.ON Battery voltage
OFF Approx. 0 V
4 B Ground ON — Approx. 0 V
5 P CAN-L — — —
6LGBattery power supply
(bending lamp power
supply)OFF — Battery voltage
8 R Bending lamp (RH) ONShift the lever to any position other than P
and turn lighting switch on the 2nd position,
and then turn the steering to the right.ON Battery voltage
OFF Approx. 0 V
Diagnosis mode Description
WORK SUPPORT Adjusts the steering angle sensor.
SELF-DIAG RESULTS AFS control unit performs CAN communication diagnosis and self-diagnosis.
DATA MONITOR Displays AFS control unit input/output data in real time.
CAN DIAG SUPPORT MNTR Monitors communication status of CAN communication.
ACTIVE TEST AFS control unit operates bending lamp. Operation check can be performed.
ECU PART NUMBER Displays part number stored in AFS control unit.
Work item Description
ST ANG SEN ADJUSTMENT Adjusts the steering angle sensor to neutral point (straight-ahead position).

ACTIVE AFS
LT-83
C
D
E
F
G
H
I
J
L
MA
B
LT

Operation Procedure (without VDC)
1. Stop the vehicle at the straight-ahead position under the unladen condition (seat 1 person on the driver's
seat).
2. Touch ADAPTIVE LIGHT” on “SELECT SYSTEM” screen.
3. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
4. Touch “ST ANG SEN ADJUSTMENT” on “SELECT WORK ITEM” screen.
5. Touch “START”.
CAUTION:
Never touch steering wheel while adjusting steering angle
sensor.
6. When “ADJUSTMENT COMPLETE” is displayed, touch “END”.
7. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”
screen.
8. Make sure that “NO DTC” is displayed.
When “ [B2520] ST ANGLE SEN CALIB” is displayed

If the steering is turned during the adjustment, perform the
adjustment again.

If any condition other than above exists, check the connection
conditions between steering angle sensor, AFS control unit,
CONSULT-II and harnesses, and then perform the adjustment
again. After the adjustment is completed, replace AFS control
unit if [B2520] is not erased from self-diagnostic results.
CAUTION:
If [U1000] CAN COMM CIRCUIT or [B2515] ST ANG SEN SIG is displayed, first refer to LT- 8 4 ,
"SELF-DIAG RESULTS" of self-diagnostic results, and then perform the diagnosis.
9. Turn ignition switch OFF, and then turn ON again.
CAUTION:
Never skip this step.
10. Drive the vehicle to the straight-ahead position, and then stop it.
11. Select “ST ANG SEN SIG” on “SELECTION FROM MENU” screen of “DATA MONITOR” of CONSULT-II.
Make sure that “ST ANG SEN SIG” is within 0 ± 2.5°. If it is other than 0 ± 2.5°, perform steps 1 to 10
again.
PKIA6818E
PKIB8781E

LT-84
ACTIVE AFS

SELF-DIAG RESULTS
Operation Procedure
1. Touch ADAPTIVE LIGHT” 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.
Details of
error
indication
detected by
CONSULT-IIConditions of error detectionFail-safe
1.ON-OFF operation
2.CancellationReference
CAN COMM
CIRCUIT
[U1000]Any of several items below is malfunctioning.

Receiving (ECM)

Receiving (Combination meter)

Receiving (TCM control unit)

Receiving (Steering angle sensor)

Receiving (EPS)CAUTION

Receiving (IPDM E/R)
CAUTION:
EPS is displayed but does not function.1. If this condition continues for 2 seconds or
more, bending lamp can not turn ON.
2. Ignition switch is OFF.LAN-49, "
CAN
System Specifi-
cation Chart"
CONTROL
UNIT (CAN)
[U1010]AFS control unit initial diagnosis malfunction1. If this condition continues for 2 seconds or
more, bending lamp can not turn ON.
2. Ignition switch is OFF.Replace AFS
control unit.
LT- 9 4 , "Removal
and Installation of
AFS Control
Unit"
ST ANG
SEN SIG
[B2515] One of the following states
Receives steering angle sensor malfunction.

Receives the outside regulated range (-942.5
to 942.5 degrees) signal.1. If this condition continues for 2 seconds or
more, bending lamp can not turn ON.
2. Ignition switch is OFF.LT- 9 2 , "
DTC
B2515 [ST ANG
SEN SIG]"
SHIFT POS
SIG [P, R]
[B2516] Receives the TCM shift position signal when 2 or
more shift positions are detected.1. The control is continued with the normal shift
position just before the malfunction signal is
received (Bending lamp can not turn ON if
the malfunctioning data is received when the
ignition switch is turned ON).
2. Ignition switch is OFF.LT- 9 3 , "DTC
B2516 [SHIFT
POS SIG (P, R)]"
VEHICLE
SPEED SIG
[B2517] Receives malfunctioning vehicle speed signal.1. If this condition continues for 2 seconds or
more, bending lamp can not turn ON.
2. Ignition switch is OFF.LT- 9 3 , "DTC
B2517 [VEHI-
CLE SPEED
SIG]"
ST ANGLE
SEN CALIB
[B2520] The steering angle sensor neutral position cannot
be recognized normally.
The steering angle sensor adjustment is not
performed after replacing AFS control unit or
steering angle sensor.

The steering angle sensor adjustment cannot
be completed normally.1. If this condition continues for 2 seconds or
more, bending lamp can not turn ON.
2. Ignition switch is OFF.LT- 8 2 , "
WORK
SUPPORT"
ECU CIRC
[B2521]RAM/ROM malfunction in AFS control unit
(AFS control unit malfunction)1. If this condition continues for 2 seconds or
more, bending lamp can not turn ON.
2. Ignition switch is OFF.Replace AFS
control unit.
LT- 9 4 , "Removal
and Installation of
AFS Control
Unit"

ACTIVE AFS
LT-85
C
D
E
F
G
H
I
J
L
MA
B
LT

CAUTION:

If plural DTCs (including [U1000] CAN COMM CIRCUIT) are displayed, start the diagnosis from
CAN communication circuit.

If NO DTC is displayed at self-diagnosis after any parts other than AFS control unit are replaced,
erase the error history.
Timing Display Has 2 Displays: the Trip Number Counter Display and the CURRENT/PAST Display.

Trip number counter display (U1000, U1010)
“0”: Displays DTC detected when there is malfunction now or trip 0.
“1” - “39”: Displays when it is normal now and finds malfunction in the past. It increases like “0”→
“1” → “2” ··· “38” → “39” after returning to the normal condition whenever IGN OFF → ON. If it is
over “39”, it is fixed to “39”until the self-diagnostic results are erased. It returns to “0” when mal-
function is detected again in the process.

CURRENT/PAST display (B2515, B2516, B2517, B2520, and B2521)
CURRENT: Displays DTC detected when there is malfunction now or trip 0.
PAST: Displays DTC when it is normal now and finds malfunction in the past. It is fixed to PAST
until the self-diagnostic results are erased. It returns to CURRENT when malfunction is detected
again in the process. (In B2520 ST ANGLE SEN CALIB, automatically erases the results after the
steering angle sensor adjustment is completed normally. It is not erased even if “ERASE” is per-
formed.)