Nissan Teana J32. Manual — part 518
EXL-42
< COMPONENT DIAGNOSIS >
[XENON TYPE]
B2084 VOLTAGE UNDER LIMIT
B2084 VOLTAGE UNDER LIMIT
DTC Logic
INFOID:0000000003805608
DTC DETECTION LOGIC
[B2084] VOLTAGE UNDER 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.
Turn the ignition switch ON.
2.
Perform self-diagnosis of CONSULT-III.
Is B2084 detected?
YES
>> Refer to
.
NO
>> Refer to
GI-35, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000003805609
1.
CHECK POWER SUPPLY WITH CONSULT-III
1.
Turn ignition switch ON.
2.
Turn the lighting switch 1ST.
3.
Select "INT SEN VOLT" of HEADLAMP LEVELIZER data monitor item.
4.
Check the monitor status.
Is the measurement value normal?
YES
>> Replace the auto levelizer control unit.
NO
>> GO TO 2.
2.
CHECK POWER SUPPLY AND GROUND CIRCUIT
Check power supply and ground circuit of auto levelizer control unit. Refer to
CONTROL UNIT : Diagnosis Procedure"
.
Is power supply and ground circuit normal?
YES
>> Replace the auto levelizer control unit.
NO
>> Repair or replace the malfunctioning part.
DTC detection condition
DTC erase conditions
Possible causes
Ignition power supply to auto levelizer control unit is 9 V or less for
1.5 seconds or more.
Ignition switch OFF
• Harness or connector
• Auto levelizer control unit
Monitor item
Standard value
(Approx.)
INT SEN VOLT
Battery voltage
B2085 LOWBEAM SIG OPEN LINE
EXL-43
< COMPONENT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
B2085 LOWBEAM SIG OPEN LINE
Description
INFOID: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 Logic
INFOID: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
.
NO
>> Refer to
GI-35, "Intermittent Incident"
.
Diagnosis Procedure
INFOID: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 item
Condition
Standard value
(Approx.)
Lighting switch
LIGHT SIGNAL
OFF
2 V or less
1ST
6 V or more
EXL-44
< COMPONENT DIAGNOSIS >
[XENON TYPE]
B2085 LOWBEAM SIG OPEN LINE
Is the measurement value normal?
YES
>> Replace the auto levelizer control unit.
NO
>> Repair the harnesses between auto levelizer control unit and IPDM E/R.
Terminals
Condition
Voltage
(Approx.)
(+)
(
−
)
Auto levelizer control unit
Ground
Connector
Terminal
Lighting switch
C8
6
OFF
0 V
1ST
Battery voltage
B2086 FRQ. OVER LIMIT
EXL-45
< COMPONENT DIAGNOSIS >
[XENON TYPE]
C
D
E
F
G
H
I
J
K
M
A
B
EXL
N
O
P
B2086 FRQ. OVER LIMIT
Description
INFOID:0000000003805613
Auto levelizer control unit inputs vehicle speed signal (8-pules) from combination meter.
DTC Logic
INFOID: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
.
NO
>> Refer to
GI-35, "Intermittent Incident"
.
Diagnosis Procedure
INFOID: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
Condition
Standard value
(Approx.)
SPEED SIG
While driving at 40 km/h
(25 MPH)
40 km/h (25
MPH)
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