Infiniti QX56 (Z62). Manual - part 692

EXL-60

< BASIC INSPECTION >

[XENON TYPE]

DIAGNOSIS AND REPAIR WORKFLOW

>> GO TO 2.

2.

SYMPTOM CHECK

Check the symptom from the customer's information.

>> GO TO 3.

3.

BASIC INSPECTION

Check the operation of each part. Check that any symptom occurs other than the interviewed symptom.

>> GO TO 4.

4.

SELF-DIAGNOSIS WITH CONSULT-III

Perform the self-diagnosis with CONSULT-III. Check that any DTC is detected.
Is any DTC detected?

YES

>> GO TO 5.

NO

>> GO TO 6.

5.

TROUBLE DIAGNOSIS BY DTC

Perform the trouble diagnosis for the detected DTC. Specify the malfunctioning part.

>> GO TO 9.

6.

FAIL-SAFE ACTIVATION CHECK

Check that the symptom is applied to the fail-safe activation.
Does the fail-safe activate?

YES

>> GO TO 7.

NO

>> GO TO 8.

7.

SYSTEM DIAGNOSIS

Perform the system diagnosis for the system that the fail-safe activates. Specify the malfunctioning part.

>> GO TO 9.

8.

SYMPTOM DIAGNOSIS

Perform the symptom diagnosis. Specify the malfunctioning part.

>> GO TO 9.

9.

MALFUNCTION PART REPAIR

Repair or replace the malfunctioning part.

>> GO TO 10.

10.

REPAIR CHECK (SELF-DIAGNOSIS WITH CONSULT-III)

Perform the self-diagnosis with CONSULT-III. Check that any DTC is not detected. Erase DTC if DTC is
detected before the repair. Check that DTC is not detected again.

Is any DTC detected?

YES

>> GO TO 5.

NO

>> GO TO 11.

11.

REPAIR CHECK (OPERATION CHECK)

Check the operation of each part.
Does it operate normally?

YES

>> INSPECTION END

NO

>> GO TO 3.

INSPECTION AND ADJUSTMENT

EXL-61

< BASIC INSPECTION >

[XENON TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (AFS CONTROL
UNIT)

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (AFS CONTROL 
UNIT) : Description

INFOID:0000000006213923

Perform “LEVELIZER ADJUSTMENT” with CONSULT-III when replacing the AFS control unit. 

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (AFS CONTROL 
UNIT) : Special Repair Requirement

INFOID:0000000006213924

1.

LEVELIZER ADJUSTMENT

Perform “LEVELIZER ADJUSTMENT”.

>> Refer to 

EXL-61, "LEVELIZER ADJUSTMENT : Special Repair Requirement"

.

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (HEIGHT SEN-
SOR)

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (HEIGHT SENSOR) : 
Description

INFOID:0000000006213925

Perform “LEVELIZER ADJUSTMENT” with CONSULT-III when replacing the height sensor. 

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (HEIGHT SENSOR) : 
Special Repair Requirement

INFOID:0000000006213926

1.

LEVELIZER ADJUSTMENT

Perform “LEVELIZER ADJUSTMENT”.

>> Refer to 

EXL-61, "LEVELIZER ADJUSTMENT : Special Repair Requirement"

.

LEVELIZER ADJUSTMENT

LEVELIZER ADJUSTMENT : Description

INFOID:0000000006213927

Perform “LEVELIZER ADJUSTMENT” when installing, removing, and replacing the height sensor and the sus-
pension components.

LEVELIZER ADJUSTMENT : Special Repair Requirement

INFOID:0000000006213928

CAUTION:

If perform aiming adjustment after the levelizer initialization, be sure to start the engine running after
turning ignition switch OFF.

1.

CHECK VEHICLE CONDITION

1.

Park the vehicle in the straight-forward position.

2.

Unload the vehicle (no passenger aboard).

>> GO TO 2.

2.

LEVELIZER ADJUSTMENT

CONSULT-III WORK SUPPORT

1.

Select “LEVELIZER ADJUSTMENT” of ADAPTIVE LIGHT work support item.

2.

Select “START”.

3.

When “ADJUSTMENT IS COMPLETED”, select “END”.

CAUTION:

EXL-62

< BASIC INSPECTION >

[XENON TYPE]

INSPECTION AND ADJUSTMENT

If “CAN NOT BE TESTED” is indicated, AFS control unit detects that the height sensor signal
changes. The levelizer adjustment is cancelled. In this case, turn the ignition switch OFF to pre-
vent the vehicle from the height change. Perform the levelizer adjustment again.

Is the levelizer adjustment completed?

YES

>> GO TO 3.

NO

>> Perform the levelizer adjustment again.

3.

SELF-DIAGNOSIS RESULT CHECK

Perform self-diagnosis with CONSULT-III. Check that any DTC is not detected.
Is any DTC detected?

YES

>> GO TO 2.

NO

>> Levelizer adjustment completed

B2503, B2504 SWIVEL ACTUATOR

EXL-63

< DTC/CIRCUIT DIAGNOSIS >

[XENON TYPE]

C

D

E

F

G

H

I

J

K

M

A

B

EXL

N

O

P

DTC/CIRCUIT DIAGNOSIS

B2503, B2504 SWIVEL ACTUATOR

DTC Logic

INFOID:0000000006213929

DTC DETECTION LOGIC

*: Initialization is not included.

DTC CONFIRMATION PROCEDURE

1.

DTC ERASE

Erase the DTC memory of AFS with CONSULT-III.

>> GO TO 2.

2.

CONFIRMATION DTC SELECTION

Select “B2503” or “B2504” for confirmation.

Which DTC is confirmation?

B2503 >> GO TO 3.
B2504 >> GO TO 4.

3.

DTC CONFIRMATION (B2503)

1.

Steer to the straight-forward position.

2.

Start the engine.

3.

Turn AFS switch ON.

4.

Turn the headlamp ON.

5.

Shift the selector lever to “N”.

6.

Steer to the right. (Rotate it once or more.)

7.

Perform the self-diagnosis with CONSULT-III.

Is DTC “B2503” detected?

YES

>> Refer to 

EXL-64, "Diagnosis Procedure"

. 

NO

>> Refer to 

GI-40, "Intermittent Incident"

.

4.

DTC CONFIRMATION (B2504)

1.

Steer to the straight-forward position.

2.

Start the engine.

3.

Turn AFS switch ON.

4.

Turn the headlamp ON.

5.

Drive at 25 km/h (15.5 MPH) or more.

6.

Steer to the left. (Rotate it once or more.)

DTC No.

Trouble diagnosis name

DTC detection condition

Possible cause

B2503

Swivel actuator [RH]

AFS control unit indicates an applicable DTC when 
detecting any of the following conditions continuous-
ly for 2 seconds or more. 
• AFS control unit-recognized swivel position differs 

extremely from the swivel position sensor-input 

value while the swivel operating.

*

• The swivel position sensor signal does not change 

even though AFS control unit transmits the swivel 

motor driving signal while the swivel operating

*

.

• The swivel motor short and open is detected while 

the swivel operating

*

.

• The swivel position sensor power supply is 6 V or 

more, or 4 V or less.

• The swivel position sensor signal is 0.25 V or less, 

or 4.75 V or more.

Swivel position sensor
• Swivel position sensor
• Harness and connector
• AFS control unit
Swivel motor
• Swivel  motor
• Harness and connector
• AFS control unit

B2504

Swivel actuator [LH]