2010 INFINITI QX56 headlamp

HEADLAMP AIMING SWITCHEXL-49
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
EXL
N
O P
HEADLAMP AIMING SWITCH
DescriptionINFOID:0000000005146660
The manual headlamp aiming system uses a headlamp aiming switch to adjust the axis of the headlamp aim-
ing motor. The headlamp aiming switch has four settings, each with a different resistance value. The head-
lamp aiming motor adjusts to the proper axis based off the position of the headlamp aiming switch.
Diagnosis Procedure - Without Daytime Light SystemINFOID:0000000005146661
Regarding Wiring Diagram information, refer to EXL-69, "Wiring Diagram".
1.CHECK HEADLAMP AIMING SWITCH SIGNAL FOR OPEN OR SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect headlamp aiming switch connector M148 (A), headlamp aiming motor LH connector E11 and
headlamp aiming motor RH connector E107 (B).
3. Check continuity between the headlamp aiming switch connec-
tor M148 terminal 1 (A) and headlamp aiming motor LH E11 and
RH E107 terminal 7 (B).
4. Check continuity between the headlamp aiming switch connec- tor M148 terminal 1 and ground.
Are the continuity test results as specified?
YES >> GO TO 2.
NO >> Repair the harness or connector.
2.CHECK HEADLAMP AIMING SWITCH
1. Check resistance between the headlamp aiming switch termi- nals 1 and 2 in each switch position.
Are the resistance check results as specified?
YES >> GO TO 3.
NO >> Replace the headlamp aiming switch.
3.CHECK HEADLAMP AIMING SWITCH GROUND CIRCUIT
Connector Terminal Connector Terminal Continuity
M148 1E11
7Y es
E107
Connector Terminal —Continuity
M148 1Ground No
AWLIA1093ZZ
Component Terminal Switch Position Resistance
Headlamp
aiming switch 12 06
04 Ω
13 24 Ω
21 91 Ω
31 30 Ω
AWLIA1027ZZ
Revision: April 20092010 QX56

EXL-50
< COMPONENT DIAGNOSIS >
HEADLAMP AIMING SWITCH
1. Turn the ignition switch OFF.
2. Disconnect headlamp aiming switch connector M148.
3. Check continuity between headlamp aiming switch connectorM148 terminal 2 and ground.
Is continuity as specified?
YES >> Inspect headlamp aiming motors.
NO >> Repair harness or connector.
Diagnosis Procedure - With Daytime Light SystemINFOID:0000000005146662
Regarding Wiring Diagram information, refer to EXL-69, "Wiring Diagram".
1.CHECK HEADLAMP AIMING SWITCH SIGNAL FOR OPEN OR SHORT CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect headlamp aiming switch connector M148 (A), headlamp aiming motor LH connector E6 and headlamp aiming motor RH connector E108 (B).
3. Check continuity between the headlamp aiming switch connec-
tor M148 terminal 1 (A) and headlamp aiming motor LH E6 and
RH E108 terminal 7 (B).
4. Check continuity between the headlamp aiming switch connec- tor M148 terminal 1 and ground.
Are the continuity test results as specified?
YES >> GO TO 2.
NO >> Repair the harness or connector.
2.CHECK HEADLAMP AIMING SWITCH
1. Check resistance between the headlamp aiming switch termi- nals 1 and 2 in each switch position.
Are the resistance check results as specified?
YES >> GO TO 3.
NO >> Replace the headlamp aiming switch.
3.CHECK HEADLAMP AIMING SWITCH GROUND CIRCUIT
Connector Terminal —Continuity
M148 2Ground Yes
AWLIA1028ZZ
Connector Terminal Connector Terminal Continuity
M148 1E6
7Y es
E108
Connector Terminal —Continuity
M148 1Ground No
AWLIA1093ZZ
Component Terminal Switch Position Resistance
Headlamp
aiming switch 12 06
04 Ω
13 24 Ω
21 91 Ω
31 30 Ω
AWLIA1027ZZ
Revision: April 20092010 QX56

HEADLAMP AIMING SWITCHEXL-51
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
EXL
N
O P
1. Turn the ignition switch OFF.
2. Disconnect headlamp aiming switch connector M148.
3. Check continuity between headlamp aiming switch connector M148 terminal 2 and ground.
Is continuity as specified?
YES >> Inspect headlamp aiming motors.
NO >> Repair harness or connector.
Connector Terminal —Continuity
M148 2Ground Yes
AWLIA1028ZZ
Revision: April 20092010 QX56

EXL-52
< COMPONENT DIAGNOSIS >
HEADLAMP
HEADLAMP
Wiring Diagram INFOID:0000000005146663
ABLWA0416GB
Revision: April 20092010 QX56

HEADLAMPEXL-53
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
EXL
N
O P
ABLIA1367GB
Revision: April 20092010 QX56

EXL-54
< COMPONENT DIAGNOSIS >
HEADLAMP
ABLIA1450GB
Revision: April 20092010 QX56

HEADLAMPEXL-55
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
EXL
N
O P
ABLIA0077GB
Revision: April 20092010 QX56

HEADLAMP AIMING SYSTEM (MANUAL)EXL-69
< COMPONENT DIAGNOSIS >
C
DE
F
G H
I
J
K
M A
B
EXL
N
O P
HEADLAMP AIMING SYSTEM (MANUAL)
Wiring DiagramINFOID:0000000005146666
ABLWA0420GB
Revision: April 20092010 QX56