Nissan Primera P11. Manual — part 307
Trouble Diagnosis
PERFORMING SELF-DIAGNOSIS
Check headlamp aiming control (auto) system using a bulb as
follows:
1. Connect a bulb 1.2W or 2W between auto level control unit
connector terminal
쑗
1
and
쑗
5
.
NOTE:
Do not use another bulb. This will damage the auto level
control unit. Use a 1.2W or 2W bulb only.
2. After turning the ignition switch from “OFF” to “ON”, the bulb
operates.
3. Compare the bulb operation to the chart below.
NEL530
Auto level control unit
Bulb (1.2 W or 2 W only)
HEADLAMP — Headlamp Aiming Control (Auto) —
EL-95
Lighting condition of the bulb
System condition
Reference item
NEL531
IGN ON
ON
OFF
1 sec.
No malfunction is detected.
No further action is neces-
sary.
—
NEL532
IGN ON
ON
OFF
1 sec.
2 sec.
2 sec.
0.5 sec.
Front sensor or front sensor
circuit is malfunctioning.
(When rear sensor OK)
Go to DIAGNOSTIC
PROCEDURE 1
(EL-97).
NEL533
IGN ON
ON
OFF
1 sec.
2 sec.
2 sec.
0.5 sec.
0.5 sec.
Rear sensor or rear sensor
circuit is malfunctioning.
(Whatever the state of front
sensor)
Go to DIAGNOSTIC
PROCEDURE 2
(EL-97).
NEL534
IGN ON
ON
OFF
1 sec.
2 sec.
2 sec.
0.5 sec.
0.5 sec.
Sensor supply is malfunction-
ing.
Go to DIAGNOSTIC
PROCEDURE 1 and
2 (EL-97).
NEL535
IGN ON
ON
OFF
1 sec.
2 sec.
2 sec.
0.5 sec.
0.5 sec.
Aiming motor or aiming motor
circuit is malfunctioning.
Go to DIAGNOSTIC
PROCEDURE 3
(EL-98).
NEL536
IGN ON
ON
OFF
Auto level control unit is mal-
functioning.
Replace auto level
control unit.
HEADLAMP — Headlamp Aiming Control (Auto) —
Trouble Diagnosis (Cont’d)
EL-96
DIAGNOSTIC PROCEDURE 1
(Front sensor check)
1) Disconnect control unit and front
sensor connector.
2) Check harness continuity between
control unit and front sensor.
Continuity should exist.
OK
왘
NG
Check harness between
control unit and front
sensor.
1) Remove sensor.
2) Check front sensor linkage opera-
tion.
OK
왘
NG
Replace sensor linkage.
Replace front sensor.
DIAGNOSTIC PROCEDURE 2
(Rear sensor check)
1) Disconnect control unit and rear
sensor connector.
2) Check harness continuity between
control unit and rear sensor.
Continuity should exist.
OK
왘
NG
Check harness between
control unit and rear sen-
sor.
1) Remove the sensor.
2) Check rear sensor linkage opera-
tion.
OK
왘
NG
Replace sensor linkage.
Replace rear sensor.
NEL537
Auto leveling control
unit B123
Front sensor
B131
NEL538
Auto leveling control
unit B123
Rear sensor
B133
왔
왔
왔
왔
HEADLAMP — Headlamp Aiming Control (Auto) —
Trouble Diagnosis (Cont’d)
EL-97
DIAGNOSTIC PROCEDURE 3
(Aiming motor check)
CHECK POWER SUPPLY
1) Turn lighting switch to 2nd position.
2) Check voltage between aiming
motor terminal
쑗
3
and ground.
Battery voltage should exist.
OK
왘
NG
Check harness between
combination switch and
aiming motor.
CHECK GROUND CIRCUIT
1) Turn lighting switch to OFF position.
2) Check continuity between aiming
motor terminal
쑗
1
and ground.
Continuity should exist.
OK
왘
NG
Check harness between
aiming motor and
ground.
1) Disconnect control unit and aiming
motor connector.
2) Check harness continuity between
control unit terminal
쑗
4
and aiming
motor terminal
쑗
2
.
Continuity should exist.
OK
왘
NG
Check harness between
control unit and aiming
motor.
Replace aiming motor.
YEL618B
Headlamp
aiming motor
Lighting switch
“2nd”
NEL540
Headlamp aiming
motor
LH:
E4
RH:
E33
NEL541
Auto leveling control
unit B123
Headlamp aiming
motor
LH:
E4
RH:
E33
왔
왔
왔
HEADLAMP — Headlamp Aiming Control (Auto) —
Trouble Diagnosis (Cont’d)
EL-98
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