Headlamp Aiming System (Manual)

HEADLAMP AIMING SYSTEM (MANUAL)

Description

The manual headlamp aiming system uses a headlamp aiming switch to adjust the axis of the headlamp aiming motor. The headlamp aiming switch has four settings, each with a different resistance value. The headlamp aiming motor adjusts to the proper axis based off the position of the headlamp aiming switch.


Component Inspection


1. CHECK HEADLAMP AIMING SWITCH

1.Disconnect headlamp aiming switch.
2.Check resistance between terminal 1 and terminal 2.





Is the inspection result normal?
YES- Headlamp aiming switch is normal.
NO- Replace the headlamp aiming switch. Refer to "Removal and Installation" Removal and Installation.


Diagnosis Procedure

Regarding Wiring Diagram information, refer to "Wiring Diagram" Headlamp Aiming System (Manual).

1. CHECK HEADLAMP AIMING MOTOR FUSES

1.Turn the ignition switch OFF.
2.Check that the fuse is not open.





Is the inspection result normal?
YES- GO TO 2
NO- Replace the fuse after repairing the affected circuit.

2. CHECK HEADLAMP AIMING MOTOR POWER SUPPLY CIRCUIT FOR OPEN OR SHORT

1.Turn ignition switch OFF.
2.Disconnect IPDM E/R harness connector E218, headlamp aiming motor LH harness connector E242 or headlamp aiming motor RH harness connector E243.
3.Check continuity between IPDM E/R harness connector E218 and headlamp aiming motor LH harness connector E242 or headlamp aiming motor RH harness connector E243.





4.Check continuity between the IPDM E/R harness connector and ground.
Revision: March 20122013 Infiniti JX





Is the inspection result normal?
YES- GO TO 3
NO- Repair or replace the harness or connector.

3. CHECK HEADLAMP AIMING SWITCH SIGNAL FOR OPEN OR SHORT CIRCUIT

1.Disconnect headlamp aiming switch harness connector M121.
2.Check continuity between the headlamp aiming switch harness connector M121 and headlamp aiming motor LH harness connector E242 or headlamp aiming motor RH harness connector E243.





3.Check continuity between the headlamp aiming switch harness connector M121 and ground.





Is the inspection result normal?
YES- GO TO 4
NO- Repair or replace the harness or connector.

4. CHECK HEADLAMP AIMING MOTOR GROUND CIRCUIT

Check continuity between headlamp aiming motor LH harness connector E242 or headlamp aiming motor RH
harness connector E243 and ground.





Is the inspection result normal?
YES- Inspect the headlamp aiming motors.
NO- Repair or replace the harness or connector.
Revision: March 20122013 Infiniti JX