ignition NISSAN TEANA 2008 Service Manual

EXL-154
< ECU DIAGNOSIS >[XENON TYPE]
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
If No CAN Communication Is Available With BCM
IGNITION RELAY MALFUNCTION DETECTION FUNCTION
 IPDM E/R monitors the voltage at the contact circuit and excitation coil circuit of the ignition relay inside it.
 IPDM E/R judges the ignition relay error if the voltage differs between the contact circuit and the excitation
coil circuit.
 If the ignition relay cannot turn OFF due to contact seizure, it activates the tail lamp relay for 10 minutes to
alert the user to the ignition relay malfunction when the ignition switch is turned OFF.
FRONT WIPER CONTROL
IPDM E/R detects front wiper stop position by a front wiper auto stop signal.
When a front wiper auto stop signal is in the conditions listed below, IPDM E/R stops power supply to wiper
after repeating a front wiper 10 seconds activation and 20 seconds stop five times.
Control part Fail-safe operation
Cooling fan Turns ON the cooling fan relay-2 and the cooling fan relay-3 when ignition switch is
turned ON (Cooling fan operates at HI)
 Turns OFF the cooling fan relay-1, the cooling fan relay-2 and the cooling fan relay-3
when the ignition switch is turned OFF (Cooling fan does not operate)
A/C compressor A/C relay OFF
Alternator Outputs the power generation command signal (PWM signal) 0%
Control part Fail-safe operation
Headlamp Turns ON the headlamp low relay when the ignition switch is turned ON
 Turns OFF the headlamp low relay when the ignition switch is turned OFF
 Headlamp high relay OFF
Parking lamps
 License plate lamps
 Illuminations
 Tail lamps Turns ON the tail lamp relay when the ignition switch is turned ON
 Turns OFF the tail lamp relay when the ignition switch is turned OFF
Front wiper The status just before activation of fail-safe control is maintained until the ignition
switch is turned OFF while the front wiper is operating at LO or HI speed.
 The wiper is operated at LO speed until the ignition switch is turned OFF if the fail-
safe control is activated while the front wiper is set in the INT mode and the front wiper
motor is operating.
Front fog lamps Front fog lamp relay OFF
Horn Horn OFF
Ignition relay The status just before activation of fail-safe is maintained.
Starter motor Starter control relay OFF
Steering lock unit Steering lock relay OFF
Headlamp washer relay Headlamp washer relay OFF
Voltage judgment
IPDM E/R judgment Operation
Ignition relay contact sideIgnition relay excitation coil
side
ON ON Ignition relay ON normal —
OFF OFF Ignition relay OFF normal —
ON OFF Ignition relay ON stuck Detects DTC “B2098: IGN RELAY ON”
 Turns ON the tail lamp relay for 10 min-
utes
OFF ON Ignition relay OFF stuck Detects DTC “B2099: IGN RELAY OFF”

IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
EXL-155
< ECU DIAGNOSIS >[XENON TYPE]
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NOTE:
This operation status can be confirmed on the IPDM E/R “Data Monitor” that displays “BLOCK” for the item
“WIP PROT” while the wiper is stopped.
STARTER MOTOR PROTECTION FUNCTION
IPDM E/R turns OFF the starter control relay to protect the starter motor when the starter control relay remains
active for 90 seconds.
DTC IndexINFOID:0000000003894276
NOTE:
 The details of time display are as follows.
- CRNT: A malfunction is detected now
- PAST: A malfunction was detected in the past.
 IGN counter is displayed on FFD (Freeze Frame data).
- The number is 0 when is detected now
- The number increases like 1 → 2 ··· 38 → 39 after returning to the normal condition whenever IGN OFF →
ON.
- The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.
×: Applicable
Ignition switch Front wiper switch Front wiper auto stop signal
ONOFFThe front wiper auto stop signal (stop posi-
tion) cannot be input for 10 seconds.
ONThe front wiper auto stop signal does not
change for 10 seconds.
CONSULT display Fail-safe Refer to
No DTC is detected.
further testing
may be required.——
U1000: CAN COMM CIRCUIT×PCS-16
B2098: IGN RELAY ON×PCS-17
B2099: IGN RELAY OFF —PCS-18
B2108: STRG LCK RELAY ON —SEC-96
B2109: STRG LCK RELAY OFF —SEC-97
B210A: STRG LCK STATE SW —SEC-98
B210B: START CONT RLY ON —SEC-102
B210C: START CONT RLY OFF —SEC-103
B210D: STARTER RELAY ON —SEC-104
B210E: STARTER RELAY OFF —SEC-105
B210F: INTRLCK/PNP SW ON —SEC-107
B2110: INTRLCK/PNP SW OFF —SEC-109

EXL-156
< ECU DIAGNOSIS >[XENON TYPE]
AUTO LEVELIZER CONTROL UNIT
AUTO LEVELIZER CONTROL UNIT
Reference ValueINFOID:0000000003805622
VALUES ON THE DIAGNOSIS TOOL
TERMINAL LAYOUT
PHYSICAL VALUES
Monitor item Operating conditionDisplay item
(Approx.)
INT SEN VALUE Rear vehicle heightDetection upper limit 100 %
Detection lower limit 0 %
ACT OUTPUT Headlamp light axisControl upper limit 69.8 %
Control lower limit 14.5 %
ACT MEASURED Headlamp light axisDetection upper limit 69.8 %
Detection lower limit 14.5 %
SPEED SIG Vehicle running at approx. 40 km/h (25 MPH) 40 km/h (25 MPH)
LIGHT SIGNAL Tail lampON Battery voltage
OFF 2 V or less
INT SEN VOLT Ignition switchON Battery voltage
Other than ON 0 V
EXT SEN VOLT — —
EXT SEN SIG — —
JPLIA1155ZZ
Te r m i n a l N o .
(Wire color)Description
Operating conditionStandard
(Approx.)
+ - Signal nameInput/
Output
1
(B)Ground Ground — — 0 V
2
(G)Ground Ignition power supply Input Ignition switchON Battery voltage
OFF 0 V
4
(P/W)GroundVehicle speed signal
(8-pulse)InputVehicle running at approx. 40 km/h (25
MPH)
PKIA1935E

AUTO LEVELIZER CONTROL UNIT
EXL-161
< ECU DIAGNOSIS >[XENON TYPE]
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Fail-safeINFOID:0000000003805624
JCLWM1454GB
DTC Fail-safe Cancellation
B2080: ECU TROUBLE Fix aiming motor drive signal to approximately 0 V Ignition switch OFF
B2081: INITIAL NOT DONE Fix with the light axis facing downwardWhen sensor initialization is
completed

EXL-162
< ECU DIAGNOSIS >[XENON TYPE]
AUTO LEVELIZER CONTROL UNIT
DTC Inspection Priority Chart
INFOID:0000000003805625
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
B2082: SENSOR OUT OF
RANGEAfter engine start
[Less than 5 seconds after ig-
nition switch ON and vehicle
speed less than 4 km/h (2.5
MPH)]Fix with the light axis facing
downward
When sensor signal returns to
normal range
While driving
[5 seconds or more after igni-
tion switch ON or vehicle
speed 4 km/h (2.5 MPH) or
more]Maintain the light axis at the
time of DTC detection
B2083: SEN SIG NOT PLAU-
SIBLE Maintain the aiming motor drive signal output at the time of
DTC detection
 Maintain the light axis at the time of DTC detectionIgnition switch OFF
B2084: VOLTAGE UNDER
LIMITAfter engine start
[Less than 5 seconds after ig-
nition switch ON and vehicle
speed less than 4 km/h (2.5
MPH)]Fix with the light axis facing
downward
Ignition switch OFF
While driving
[5 seconds or more after igni-
tion switch ON or vehicle
speed 4 km/h (2.5 MPH) or
more]Maintain the light axis at the
time of DTC detection
B2085: LOWBEAM SIG
OPEN LINEAfter engine start
[Less than 5 seconds after ig-
nition switch ON and vehicle
speed less than 4 km/h (2.5
MPH)]Fix with the light axis facing
downward
Ignition switch OFF
While driving
[5 seconds or more after igni-
tion switch ON or vehicle
speed 4 km/h (2.5 MPH) or
more]Maintain the light axis at the
time of DTC detection
B2086: FRQ. OVER LIMITAfter engine start
[Less than 5 seconds after ig-
nition switch ON and vehicle
speed less than 4 km/h (2.5
MPH)]Fix with the light axis facing
downward
Ignition switch OFF
While driving
[5 seconds or more after igni-
tion switch ON or vehicle
speed 4 km/h (2.5 MPH) or
more]Maintain the light axis at the
time of DTC detection
B2087: SHORT TO GROUND Maintain the light axis at the time of DTC detection Ignition switch OFF
B2088: SHORT TO BATTERY Maintain the light axis at the time of DTC detection Ignition switch OFF
B208A: PARA NOT PROG Fix aiming motor drive signal output to approximately 0 VWrite configuration is complet-
ed DTC Fail-safe Cancellation
Priority DTC
1 B2080: ECU TROUBLE
 B208A: PARA NOT PROG

EXL-164
< SYMPTOM DIAGNOSIS >[XENON TYPE]
EXTERIOR LIGHTING SYSTEM SYMPTOMS
SYMPTOM DIAGNOSIS
EXTERIOR LIGHTING SYSTEM SYMPTOMS
Symptom TableINFOID:0000000003774367
CAUTION:
Perform the self-diagnosis with CONSULT-III before the symptom diagnosis. Perform the trouble diag-
nosis if any DTC is detected.
Symptom Possible cause Inspection item
Headlamp (HI) is not
turned ON.One sideFuse
 Halogen bulb (HI)
 Harness between IPDM E/R
and the headlamp high
 IPDM E/RHeadlamp (HI) circuit
Refer to EXL-54
.
Both sides
Symptom diagnosis
“BOTH SIDE HEADLAMPS (HI) ARE NOT TURNED ON”
Refer to EXL-168
.
Headlamp (HI) is not
turned OFF.When ignition switch is
turned ON.
When ignition switch is
turned OFF.IPDM E/R —
High beam indicator lamp is not turned ON.
[Headlamp (HI) is turned ON.]Combination meter Combination meter
Data monitor “HI-BEAM IND”
 BCM (HEAD LAMP)
Active test “HEADLAMP”
Headlamp (LO) is not
turned ON.One sideFuse
 Xenon bulb (LO)
 Harness between IPDM E/R
and the front combination lamp
 IPDM E/RHeadlamp (LO) circuit
Refer to EXL-56
.
Both sides
Symptom diagnosis
“BOTH SIDE HEADLAMPS (LO) ARE NOT TURNED ON”
Refer to EXL-169
.
Headlamp (LO) is not
turned OFF.When ignition switch is
turned ON.
When ignition switch is
turned OFF.IPDM E/R —
Each lamps are not turned ON/OFF with lighting
switch AUTO. Combination switch
 Harness between the combina-
tion switch and BCM
BCMCombination switch
Refer to BCS-76
.
 Optical sensor
 Harness between the optical
sensor and BCM
BCMOptical sensor circuit
Refer to EXL-69
.
Front fog lamp is not
turned ON.One side Front fog lamp bulb
 Harness between IPDM E/R
and the front fog lamp
 Front fog lamp
 IPDM E/RFront fog lamp circuit
Refer to EXL-62
.
Both sidesSymptom diagnosis
“BOTH SIDE FRONT FOG LAMPS ARE NOT TURNED ON”
Refer to EXL-171
. Front fog lamp is not turned ON.
Front fog lamp indicator is not turned ON.
(Front fog lamp is turned ON.)Combination meter Combination meter
Data monitor “FR FOG IND”
 BCM (HEAD LAMP)
Active test “FR FOG LAMP”

EXTERIOR LIGHTING SYSTEM SYMPTOMS
EXL-165
< SYMPTOM DIAGNOSIS >[XENON TYPE]
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Parking lamp is not turned ON. Parking lamp bulb
 Harness between IPDM E/R
and the front combination lamp
 Front combination lamp
 IPDM E/RParking lamp circuit
Refer to EXL-64.
Tail lamp is not turned ON. Harness between IPDM E/R
and the rear combination lamp
 Rear combination lampTail lamp circuit
Refer to EXL-74
.
License plate lamp is not turned ON. License plate lamp bulb
 Harness between IPDM E/R
and the license plate lamp
 License plate lampLicense plate lamp circuit
Refer to EXL-76
.
Tail lamp and the license plate lamp are not turned
ON.Fuse
 Harness between IPDM E/R
and the rear combination lamp
 IPDM E/RLicense plate lamp circuit
Refer to EXL-76
.
 Parking lamp, the tail lamp and the license plate
lamp are not turned ON.
 Parking lamp, the tail lamp and the license plate
lamp are not turned OFF.
(Each illumination is turned ON/OFF.)Symptom diagnosis
“PARKING, LICENSE PLATE AND TAIL LAMPS ARE NOT TURNED
ON”
Refer to EXL-170
.
Tail lamp indicator is not turned ON.
(Parking, tail lamps are turned ON.)Combination meter Combination meter
Data monitor “LIGHT IND”
 BCM (HEAD LAMP)
Active test “TAIL LAMP”
Turn signal lamp does not
blink.Indicator lamp is nor-
mal.
(Applicable side per-
forms the high flasher
activation.) Harness between BCM and
each turn signal lamp
 Turn signal lamp bulbTurn signal circuit
Refer to EXL-66
.
Indicator lamp is includ-
ed. Combination switch
 Harness between the combina-
tion switch and BCM
BCMCombination switch
Refer to BCS-76
.
Turn signal indicator lamp
does not blink.
(Turn signal indicator
lamp is normal.)One side Combination meter —
Both sides
(Always) Turn signal indicator lamp sig-
nal
-BCM
 Combination meter Combination meter
Data monitor “TURN IND”
 BCM (FLASHER)
Active test “FLASHER”
Both sides
(Only when activating
hazard warning lamp
with the ignition switch
OFF) Combination meter power sup-
ply and the ground circuit
 Combination meterCombination meter
Power supply and the ground circuit
Refer to MWI-42
.
 Hazard warning lamp does not activate.
 Hazard warning lamp continues activating.
(Turn signal is normal.) Hazard switch
 Harness between the hazard
switch and BCM
BCMHazard switch
Refer to EXL-72
.
Rear fog lamp is not
turned ON.Rear fog lamp indicator
lamp is normal. Harness between BCM and the
rear fog lamp
 Rear fog lamp bulb
BCMRear fog lamp circuit
Refer to EXL-77
.
Rear fog lamp indicator
lamp is included. Combination switch
 Harness between the combina-
tion switch and BCM
BCMCombination switch
Refer to BCS-76
. Symptom Possible cause Inspection item

EXL-202
< FUNCTION DIAGNOSIS >[HALOGEN TYPE]
AUTO LIGHT SYSTEM
AUTO LIGHT SYSTEM
System DiagramINFOID:0000000003894281
System DescriptionINFOID:0000000003894282
OUTLINE
 Auto light system is controlled by each function of BCM and IPDM E/R.
Control by BCM- Combination switch reading function
- Headlamp control function
- Auto light function
- Delay timer function
Control by IPDM E/R- Relay control function
 Auto light system has the auto light function and the delay timer function.
- Auto light function turns the exterior lamps* and each illumination ON/OFF automatically according to the
outside brightness.
- When auto light system turns the exterior lamps ON with the ignition switch OFF, delay timer function turns
the exterior lamps OFF depending on the vehicle condition with the auto light function after a certain period
of time.
*: Headlamp (LO/HI), parking lamp, tail lamp and front fog lamp (Headlamp HI and front fog lamp depend on
the combination switch condition.)
AUTO LIGHT FUNCTION
 BCM detects the combination switch condition with the combination switch reading function.
 BCM supplies voltage to optical sensor when the ignition switch is turned ON or ACC.
 Optical sensor converts outside brightness (lux) to voltage and transmits the optical sensor signal to BCM.
 BCM judges outside brightness from the optical sensor signal and judges ON/OFF condition of the exterior
lamp and each illumination according to the outside brightness.
 BCM transmits each request signal to IPDM E/R with CAN communication according to ON/OFF condition
by the auto light function.
NOTE:
ON/OFF timing differs based on the sensitivity from the setting. The setting can be set by CONSULT-III. Refer
to EXL-215, "
HEADLAMP : CONSULT-III Function (BCM - HEAD LAMP)".
DELAY TIMER FUNCTION
BCM turns the exterior lamp OFF depending on the vehicle condition with the auto light function when the igni-
tion switch is turned OFF.
 Turns the exterior lamp OFF 5 minutes after detecting that any door opens (Door switch ON).
 Turns the exterior lamp OFF a certain period of time* after closing all doors (Door switch ON→OFF).
JPLIA0804GB

AUTO LIGHT SYSTEM
EXL-203
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 Turns the exterior lamp OFF with the ignition switch ACC or the light switch OFF.
*: The preset time is 45 seconds. The timer operating time can be set by CONSULT-III. Refer to EXL-215,
"HEADLAMP : CONSULT-III Function (BCM - HEAD LAMP)".
NOTE:
When any position other than the light switch AUTO is set, the auto light system function switches to the exte-
rior lamp battery saver function.
Component Parts LocationINFOID:0000000003894283
Component DescriptionINFOID:0000000003894284
1. Combination switch 2. Optical sensor 3. IPDM E/R
4. BCM
A. Instrument upper panel (RH) B. Engine room (LH) C. Behind the combination meter
J P L I A 111 9 Z Z
Part Description
BCM Detects each switch condition by the combination switch reading function.
 Judges the outside brightness from the optical sensor signal.
 Judges the OFF timing according to the vehicle condition.
 Judges the ON/OFF status of the exterior lamp and each illumination according to the
outside brightness and the vehicle condition.
Requests ON/OFF of each relay to IPDM E/R (with CAN communication).
IPDM E/RControls the integrated relay, and supplies voltage to the load according to the request
from BCM (with CAN communication).
Combination switch
(Lighting & turn signal switch)Refer to BCS-8, "
System Diagram".
Optical sensor Refer to EXL-238, "
Description".

EXL-206
< FUNCTION DIAGNOSIS >[HALOGEN TYPE]
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
TURN SIGNAL AND HAZARD WARNING LAMP SYSTEM
System DiagramINFOID:0000000003894289
System DescriptionINFOID:0000000003894290
OUTLINE
Turn signal lamp and the hazard warning lamp is controlled by combination switch reading function and the
flasher control function of BCM.
TURN SIGNAL LAMP OPERATION
 BCM detects the combination switch condition by the combination switch reading function.
 BCM supplies voltage to the right (left) turn signal lamp circuit when the ignition switch is turned ON and the
turn signal switch is in the right (left) position. BCM blinks the turn signal lamp.
HAZARD WARNING LAMP OPERATION
BCM supplies voltage to both turn signal lamp circuit when the hazard switch is turned ON. BCM blinks the
hazard warning lamp.
TURN SIGNAL INDICATOR LAMP AND TURN SIGNAL SOUND OPERATION
 BCM transmits the turn indicator signal to the combination meter with CAN communication while the turn sig-
nal lamp and the hazard warning lamp are operating.
 Combination meter outputs the turn signal sound with the integrated buzzer while blinking the turn signal
indicator lamp according to the turn indicator signal.
HIGH FLASHER OPERATION (FAIL-SAFE)
 BCM detects the turn signal lamp circuit status by the terminal current value.
 BCM increases the turn signal lamp blinking speed if the bulb or harness open is detected with the turn sig-
nal lamp operating.
NOTE:
The blinking speed is normal while operating the hazard warning lamp.
JPLIA0180GB