ignition NISSAN TEANA 2008 Service Manual

B2085 LOWBEAM SIG OPEN LINE
EXL-43
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B2085 LOWBEAM SIG OPEN LINE
DescriptionINFOID:0000000003805610
 Auto levelizer control unit inputs tail lamp signal from IPDM E/R.
 Auto levelizer control unit always outputs the voltage to detect the DTC.
DTC LogicINFOID:0000000003805611
DTC DETECTION LOGIC
[B2085] LOWBEAM SIG OPEN LINE
DTC CONFIRMATION PROCEDURE
1.ERASE DTC
Erase DTC memory of headlamp levelizer with self-diagnosis of CONSULT-III.
>> GO TO 2.
2.DTC CONFIRMATION
1. Turn the ignition switch ON.
2. Turn the lighting switch 1ST.
3. Perform self-diagnosis of CONSULT-III.
Is B2085 detected?
YES >> Refer to EXL-43, "Diagnosis Procedure".
NO >> Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003805612
1.CHECK TAIL LAMP SIGNAL INPUT WITH CONSULT-III
1. Turn ignition switch ON.
2. Select "LIGHT SIGNAL" of HEADLAMP LEVELIZER data monitor item.
3. With operating the lighting switch, check the monitor status.
Is the measurement value normal?
YES >> Replace the auto levelizer control unit.
NO >> GO TO 2.
2.CHECK TAIL LAMP SIGNAL INPUT
1. Turn ignition switch OFF.
2. Disconnect the auto levelizer control unit connector.
3. Turn ignition switch ON.
4. With operating the lighting switch, check the voltage between the auto levelizer control unit harness con-
nector and the ground.
DTC detection condition DTC erase conditions Possible causes
Auto levelizer control unit detected that the tail lamp signal is the fol-
lowing condition:
2 V < tail lamp signal < 6 V Ignition switch OFF Harness or connector
 IPDM E/R
 Auto levelizer control unit
Monitor itemCondition
Standard value
(Approx.)
Lighting switch
LIGHT SIGNALOFF 2 V or less
1ST 6 V or more

B2086 FRQ. OVER LIMIT
EXL-45
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B2086 FRQ. OVER LIMIT
DescriptionINFOID:0000000003805613
Auto levelizer control unit inputs vehicle speed signal (8-pules) from combination meter.
DTC LogicINFOID:0000000003805614
DTC DETECTION LOGIC
[B2086] FRQ. OVER LIMIT
DTC CONFIRMATION PROCEDURE
1.ERASE DTC
Erase DTC memory of HEADLAMP LEVELIZER with self-diagnosis of CONSULT-III.
>> GO TO 2.
2.DTC CONFIRMATION
1. Start the engine.
2. Drive the vehicle at 40 km/h (25 MPH).
3. Perform self-diagnosis of CONSULT-III.
Is B2086 detected?
YES >> Refer to EXL-45, "Diagnosis Procedure".
NO >> Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003805615
1.CHECK VEHICLE SPEED SIGNAL INPUT WITH CONSULT-III
1. Turn ignition switch ON.
2. Select "SPEED SIG" of HEADLAMP LEVELIZER data monitor item.
3. While driving at 40 km/h (25 MPH), check the monitor status.
Is the measurement value normal?
YES >> Replace the auto levelizer control unit.
NO >> GO TO 2.
2.CHECK VEHICLE SPEED SIGNAL INPUT
1. Turn ignition switch OFF.
2. Disconnect the auto levelizer control unit connector.
3. Turn ignition switch ON.
4. While driving at 40 km/h (25 MPH), check the voltage between the auto levelizer control unit harness con-
nector and the ground.
DTC detection condition DTC erase conditions Possible causes
Auto levelizer control unit detected that vehicle speed signal is ab-
normal. [The vehicle speed is 340 km/h (211 MPH) or more for 1.5
seconds or more.]Ignition switch OFF Harness or connector
 Auto levelizer control unit
Monitor item ConditionStandard value
(Approx.)
SPEED SIGWhile driving at 40 km/h
(25 MPH)40 km/h (25
MPH)

B2087 SHORT TO GROUND
EXL-47
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B2087 SHORT TO GROUND
DTC LogicINFOID:0000000003805616
DTC DETECTION LOGIC
[B2087] SHORT TO GROUND
DTC CONFIRMATION PROCEDURE
1.ERASE DTC
Erase DTC memory of HEADLAMP LEVELIZER with self-diagnosis of CONSULT-III.
>> GO TO 2.
2.DTC CONFIRMATION
1. Turn the ignition switch ON.
2. Perform self-diagnosis of CONSULT-III.
YES >> Refer to EXL-47, "
Diagnosis Procedure".
NO >> Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003805617
1.CHECK HEADLAMP LEVELIZER CIRCUIT OF CONSULT-III
1. Turn ignition switch ON.
2. Turn the lighting switch 1ST.
3. Select "ACT MEASURED" and "ACT OUTPUT" of HEADLAMP LEVELIZER data monitor item.
4. Check that “ACT MEASURED” value is within approximately ± 3% to “ACT OUTPUT” value.
NOTE:
“ACT MEASURED” value is approximately 0% when shorted to the ground.
Is the measurement value normal?
YES >> Replace the auto levelizer control unit.
NO >> GO TO 2.
2.HEADLAMP LEVELIZER CIRCUIT INSPECTION
Check the headlamp levelizer circuit for short to ground. Refer to EXL-60, "
Description".
Is the headlamp levelizer circuit normal?
YES >> Replace the auto levelizer control unit.
NO >> Repair or replace the malfunctioning part.
DTC detection condition DTC erase conditions Possible causes
Headlamp levelizer circuit is shorted to the ground for 1.5 seconds
or more.Ignition switch OFF Harness or connector
 Auto levelizer control unit

EXL-48
< COMPONENT DIAGNOSIS >[XENON TYPE]
B2088 SHORT TO BATTERY
B2088 SHORT TO BATTERY
DTC LogicINFOID:0000000003805618
DTC DETECTION LOGIC
[B2088] SHORT TO BATTERY
DTC CONFIRMATION PROCEDURE
1.ERASE DTC
Erase DTC memory of HEADLAMP LEVELIZER with self-diagnosis of CONSULT-III.
>> GO TO 2.
2.DTC CONFIRMATION
1. Turn the ignition switch ON.
2. Perform self-diagnosis of CONSULT-III.
Is B2088 detected?
YES >> Refer to EXL-48, "Diagnosis Procedure".
NO >> Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003805619
1.CHECK HEADLAMP LEVELIZER CIRCUIT OF CONSULT-III
1. Turn ignition switch ON.
2. Turn the lighting switch 1ST.
3. Select "ACT MEASURED" and "ACT OUTPUT" of HEADLAMP LEVELIZER data monitor item.
4. Check that “ACT MEASURED” value is within approximately ± 3% to “ACT OUTPUT” value.
NOTE:
“ACT MEASURED” value is approximately 100% when shorted to the battery.
Is the measurement value normal?
YES >> Replace the auto levelizer control unit.
NO >> GO TO 2.
2.HEADLAMP LEVELIZER CIRCUIT INSPECTION
Check the headlamp levelizer circuit for short to battery. Refer to EXL-60, "
Description".
Is the headlamp levelizer circuit normal?
YES >> Replace the auto levelizer control unit.
NO >> Repair or replace the malfunctioning part.
DTC detection condition DTC erase conditions Possible causes
Headlamp levelizer circuit is shorted to the battery for 1.5 seconds
or more.Ignition switch OFF Harness or connector
 Auto levelizer control unit

EXL-50
< COMPONENT DIAGNOSIS >[XENON TYPE]
POWER SUPPLY AND GROUND CIRCUIT
POWER SUPPLY AND GROUND CIRCUIT
BCM (BODY CONTROL MODULE)
BCM (BODY CONTROL MODULE) : Diagnosis ProcedureINFOID:0000000003894263
1.CHECK FUSE AND FUSIBLE LINK
Check that the following fuse and fusible link are not blown.
Is the fuse fusing?
YES >> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is
blown.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect BCM connectors.
3. Check voltage between BCM harness connector and ground.
Is the measurement value normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
Check continuity between BCM harness connector and ground.
Does continuity exist?
YES >> INSPECTION END
NO >> Repair harness or connector.
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM) : Di-
agnosis Procedure
INFOID:0000000003894265
1.CHECK FUSES AND FUSIBLE LINK
Check that the following IPDM E/R fuses or fusible links are not blown.
Signal name Fuse and fusible link No.
Battery power supplyI
10
Te r m i n a l s
Voltag e
(Approx.) (+) (−)
BCM
Ground Connector Terminal
M118 1
Battery voltage
M119 11
BCM
GroundContinuity
Connector Terminal
M119 13 Existed

POWER SUPPLY AND GROUND CIRCUIT
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Is the fuse fusing?
YES >> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is
blown.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check voltage between IPDM E/R harness connector and ground.
Is the measurement value normal?
YES >> GO TO 3.
NO >> Repair harness or connector.
3.CHECK GROUND CIRCUIT
Check continuity between IPDM E/R harness connectors and ground.
Does continuity exist?
YES >> INSPECTION END
NO >> Repair harness or connector.
AUTO LEVELIZER CONTROL UNIT
AUTO LEVELIZER CONTROL UNIT : Diagnosis ProcedureINFOID:0000000003774348
1.CHECK FUSES
Check that any of the following fuses are fusing
Is the fuse fusing?
YES >> Repair the applicable circuit. And then replace the fuse.
NO >> GO TO 2.
2.CHECK POWER SUPPLY CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect auto levelizer control unit connector.
3. Turn the ignition switch ON.
4. Check voltage between auto levelizer control unit harness connector and ground.
Signal name Fuses and fusible link No.
Battery power supplyE
50
51
Te r m i n a l s
Voltag e
(Approx.) (+)
(−)
IPDM E/R
Connector Terminal
Ground
E9 1 Battery voltage
IPDM E/R
GroundContinuity
Connector Terminal
E10 12
Existed
E11 41
Signal name Location Fuse No. Capacity
Ignition power supply Fuse block (J/B) 3 10A

EXL-54
< COMPONENT DIAGNOSIS >[XENON TYPE]
HEADLAMP (HI) CIRCUIT
HEADLAMP (HI) CIRCUIT
Component Function CheckINFOID:0000000003774352
1.CHECK HEADLAMP (HI) OPERATION
IPDM E/R AUTO ACTIVE TEST
1. Activate IPDM E/R auto active test. Refer to PCS-11, "
Diagnosis Description".
2. Check that the headlamp switches to the high beam.
CONSULT-III ACTIVE TEST
1. Select “EXTERNAL LAMPS” of IPDM E/R active test item.
2. With operating the test items, check that the headlamp (HI) is turned ON.
NOTE:
ON/OFF is repeated 1 second each.
Is the headlamp (HI) turned ON?
YES >> Headlamp (HI) circuit is normal.
NO >> Refer to EXL-54, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003774353
1.CHECK HEADLAMP (HI) OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST
1. Turn the ignition switch OFF.
2. Disconnect the headlamp high connector.
3. Turn the ignition switch ON.
4. Select “EXTERNAL LAMPS” of IPDM E/R active test item.
5. With operating the test items, check the voltage between the IPDM E/R harness connector and the
ground.
Is the measurement value normal?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK HEADLAMP (HI) OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between the IPDM E/R harness connector and the headlamp high harness connector. Hi : Headlamp (HI) ON
Off : Headlamp (HI) OFF
Te r m i n a l s
Te s t i t e m
Voltag e
(Approx.) (+) (−)
IPDM E/R
GroundEXTERNAL
LAMPS
Connector Terminal
RH
E34589HiBattery
voltage
Off 0 V
LH 90HiBattery
voltage
Off 0 V

HEADLAMP (HI) CIRCUIT
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Does continuity exist?
YES >> GO TO 5.
NO >> Repair the harnesses or connectors.
3.CHECK HEADLAMP (HI) FUSE
1. Turn the ignition switch OFF.
2. Check that the following fuses are not fusing.
Is the fuse fusing?
YES >> GO TO 4.
NO >> Replace IPDM E/R.
4.CHECK HEADLAMP HIGH (HI) SHORT CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check continuity between the IPDM E/R harness connector terminal and the ground.
Does continuity exist?
YES >> Repair the harnesses or connectors. And then replace the fuse.
NO >> Replace the fuse. (Replace IPDM E/R if the fuse is fusing again.)
5.CHECK HEADLAMP (HI) GROUND OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect the headlamp high connector.
3. Check continuity between the headlamp high harness connector and ground.
Does continuity exist?
YES >> Replace the headlamp (HI) bulb. (Bulb socket is abnormally.)
NO >> Repair the harnesses or connectors.
IPDM E/R Headlamp high
Continuity
Connector Terminal Connector Terminal
RH
E34589 E317 1
Existed
LH 90 E316 1
Unit Location Fuse No. Capacity
Headlamp HI (RH) IPDM E/R #55 10 A
Headlamp HI (LH) IPDM E/R #54 10 A
IPDM E/R
GroundContinuity
Connector Terminal
RH
E34589
Not existed
LH 90
Headlamp high
GroundContinuity
Connector Terminal
RH E317 2
Existed
LH E316 2

EXL-56
< COMPONENT DIAGNOSIS >[XENON TYPE]
HEADLAMP (LO) CIRCUIT
HEADLAMP (LO) CIRCUIT
Component Function CheckINFOID:0000000003774354
1.CHECK HEADLAMP (LO) OPERATION
IPDM E/R AUTO ACTIVE TEST
1. Activate IPDM E/R auto active test. Refer to PCS-11, "
Diagnosis Description".
2. Check that the headlamp is turned ON.
CONSULT-III ACTIVE TEST
1. Select “EXTERNAL LAMPS” of IPDM E/R active test item.
2. With operating the test items, check that the headlamp (LO) is turned ON.
Is the headlamp (LO) turned ON?
YES >> Headlamp (LO) is normal.
NO >> Refer to EXL-56, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003774355
1.CHECK HEADLAMP (LO) OUTPUT VOLTAGE
CONSULT-III ACTIVE TEST
1. Turn the ignition switch OFF.
2. Disconnect the front combination lamp connector.
3. Turn the ignition switch ON.
4. Select “EXTERNAL LAMPS” of IPDM E/R active test item.
5. With operating the test items, check the voltage between the IPDM E/R harness connector and the
ground.
Is the measurement value normal?
YES >> GO TO 2.
NO >> GO TO 3.
2.CHECK HEADLAMP (LO) OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect IPDM E/R connector.
3. Check continuity between the IPDM E/R harness connector and the front combination lamp harness con-
nector.Lo : Headlamp (LO) ON
Off : Headlamp (LO) OFF
Te r m i n a l s
Te s t i t e m
Vo l ta g e
(Approx.) (+) (−)
IPDM E/R
GroundEXTERNAL
LAMPS
Connector Terminal
RH
E34583LoBattery volt-
age
Off 0 V
LH 84LoBattery volt-
age
Off 0 V
IPDM E/R Front combination lamp
Continuity
Connector Terminal Connector Terminal
RH
E34583 E319 3
Existed
LH 84 E318 3

HEADLAMP (LO) CIRCUIT
EXL-57
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Does continuity exist?
YES >> GO TO 5.
NO >> Repair the harnesses or connectors.
3.CHECK HEADLAMP (LO) FUSE
1. Turn the ignition switch OFF.
2. Check that the following fuses are not fusing.
Is the fuse fusing?
YES >> GO TO 4.
NO >> Replace IPDM E/R.
4.CHECK HEADLAMP (LO) SHORT CIRCUIT
1. Disconnect IPDM E/R connector.
2. Check continuity between the IPDM E/R harness connector and the ground.
Does continuity exist?
YES >> Repair the harnesses or connectors. And then replace the fuse.
NO >> Replace the fuse. (Replace IPDM E/R if the fuse is fusing again.)
5.CHECK HEADLAMP (LO) GROUND OPEN CIRCUIT
1. Turn the ignition switch OFF.
2. Disconnect the front combination lamp connector.
3. Check continuity between the front combination lamp harness connector and ground.
Does continuity exist?
YES >> Perform the xenon headlamp diagnosis. Refer to EXL-58, "Description".
NO >> Repair the harnesses or connectors.
Unit Lotion Fuse No. Capacity
Headlamp LO (RH) IPDM E/R #57 15 A
Headlamp LO (LH) IPDM E/R #56 15 A
IPDM E/R
GroundContinuity
Connector Terminal
RH
E34583
Not existed
LH 84
Front combination lamp
GroundContinuity
Connector Terminal
RH E319 4
Existed
LH E318 4