Infiniti QX56 (JA60). Manual - part 505

HEADLAMP AIMING SWITCH

EXL-49

< COMPONENT DIAGNOSIS >

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HEADLAMP AIMING SWITCH

Description

INFOID: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 System

INFOID: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

1

E11

7

Yes

E107

Connector

Terminal

—

Continuity

M148

1

Ground

 No

AWLIA1093ZZ

Component

Terminal

Switch Position

Resistance

Headlamp 

aiming switch

1

2

0

604 

Ω

1

324 

Ω

2

191 

Ω

3

130 

Ω

AWLIA1027ZZ

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 connector

M148 terminal 2 and ground.

Is continuity as specified?

YES

>> Inspect headlamp aiming motors.

NO

>> Repair harness or connector. 

Diagnosis Procedure - With Daytime Light System

INFOID: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

2

Ground

Yes

AWLIA1028ZZ

Connector

Terminal

Connector

Terminal

Continuity

M148

1

E6

7

Yes

E108

Connector

Terminal

—

Continuity

M148

1

Ground

 No

AWLIA1093ZZ

Component

Terminal

Switch Position

Resistance

Headlamp 

aiming switch

1

2

0

604 

Ω

1

324 

Ω

2

191 

Ω

3

130 

Ω

AWLIA1027ZZ

HEADLAMP AIMING SWITCH

EXL-51

< COMPONENT DIAGNOSIS >

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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

2

Ground

Yes

AWLIA1028ZZ

EXL-52

< COMPONENT DIAGNOSIS >

HEADLAMP

HEADLAMP

Wiring Diagram 

INFOID:0000000005146663

ABLWA0416GB