Nissan Qashqai (2007-2010). Manual — part 1334
B2085 LOWBEAM SIG OPEN LINE
EXL-41
< COMPONENT DIAGNOSIS >
[XENON TYPE]
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B2085 LOWBEAM SIG OPEN LINE
Description
INFOID:0000000001089019
• 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:0000000001089020
DTC DETECTION LOGIC
[B2085] LOWBEAM SIG OPEN LINE
DTC CONFIRMATION PROCEDURE
1.
ERASE DTC
1.
Turn the headlamp (LO) ON.
2.
Connect the CONSULT-III.
3.
Erase DTC memory of HEADLAMP LEVELIZER with self-diagnosis of CONSULT-III.
>> GO TO 2.
2.
DTC CONFIRMATION
Perform self-diagnosis of CONSULT-III.
Is B2085 detected?
YES
>> Refer to
.
NO
>> Refer to
GI-39, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000001089021
1.
CHECK TAIL LAMP SIGNAL INPUT WITH CONSULT-III
1.
Turn the headlamp (LO) ON.
2.
Connect the CONSULT-III.
3.
Select "LIGHT SIGNAL" 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 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
Tail lamp signal is 6 V or less with tail lamp ON, or 2 V or more with
tail lamp OFF, for 1.5 seconds or more.
Headlamp (LO) OFF
• Harness or connector
• IPDM E/R
• Auto levelizer control unit
Monitor item
Condition
Standard value
(Approx.)
LIGHT SIGNAL
Headlamp (LO) ON
6 V or more
EXL-42
< 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
B43
6
OFF
0 V
1ST
Battery voltage
B2086 FRQ. OVER LIMIT
EXL-43
< COMPONENT DIAGNOSIS >
[XENON TYPE]
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B2086 FRQ. OVER LIMIT
Description
INFOID:0000000001089022
Auto levelizer control unit inputs vehicle speed signal (8-pulse) from combination meter.
DTC Logic
INFOID:0000000001089023
DTC DETECTION LOGIC
[B2086] FRQ. OVER LIMIT
DTC CONFIRMATION PROCEDURE
1.
ERASE DTC
1.
Turn the headlamp (LO) ON.
2.
Connect the CONSULT-III.
3.
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.
3.
Perform self-diagnosis of CONSULT-III.
Is B2086 detected?
YES
>> Refer to
.
NO
>> Refer to
GI-39, "Intermittent Incident"
.
Diagnosis Procedure
INFOID:0000000001089024
1.
CHECK VEHICLE SPEED SIGNAL INPUT WITH CONSULT-III
1.
Turn the headlamp (LO) ON.
2.
Connect the CONSULT-III.
3.
Select "VEHICLE SPEED SIGNAL" of HEADLAMP LEVELIZER data monitor item.
4.
While driving at 40 km/h, 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, check the voltage between the auto levelizer control unit harness connector and
the ground.
DTC detection condition
DTC erase conditions
Possible causes
The vehicle speed is 340 km/h or more for 1.5 seconds or more.
Headlamp (LO) OFF
• Harness or connector
• Auto levelizer control unit
Monitor item
Condition
Standard value
(Approx.)
VEHICLE SPEED SIGNAL
While driving at 40 km/h
40 km/h
EXL-44
< COMPONENT DIAGNOSIS >
[XENON TYPE]
B2086 FRQ. OVER LIMIT
Is the measurement value normal?
YES
>> Replace the auto levelizer control unit.
NO
>> Repair the harnesses between auto levelizer control unit and combination meter.
Terminals
Condition
Voltage
(Approx.)
(+)
(
−
)
Auto levelizer control unit
Ground
Connector
Terminal
B43
4
While driving
at 40 km/h
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