Infiniti QX56 (Z62). Manual - part 1058

SUNROOF MOTOR ASSEMBLY

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JCKWM4487GB

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DIAGNOSIS AND REPAIR WORKFLOW

BASIC INSPECTION

DIAGNOSIS AND REPAIR WORKFLOW

WorkFlow

INFOID:0000000006141229

DETAILED FLOW

1.

OBTAIN INFORMATION ABOUT SYMPTOM

Interview the customer to obtain the malfunction information (conditions and environment when the malfunc-
tion occurred) as much as possible when the customer brings the vehicle in.

>> GO TO 2.

2.

REPRODUCE THE MALFUNCTION INFORMATION

Check the malfunction on the vehicle that the customer describes.
Inspect the relation of the symptoms and the condition when the symptoms occur.

>> GO TO 3.

3.

IDENTIFY THE MALFUNCTIONING SYSTEM WITH “SYMPTOM DIAGNOSIS”

Use “Symptom diagnosis” from the symptom inspection result in step 2 and then identify where to start per-
forming the diagnosis based on possible causes and symptoms.

>> GO TO 4.

4.

IDENTIFY THE MALFUNCTIONING PARTS WITH “COMPONENT DIAGNOSIS”

Perform the diagnosis with “Component diagnosis” of the applicable system.

>> GO TO 5.

5.

REPAIR OR REPLACE THE MALFUNCTIONING PARTS

Repair or replace the specified malfunctioning parts.

>> GO TO 6.

6.

FINAL CHECK

Check that malfunctions are not reproduced when obtaining the malfunction information from the customer,
referring to the symptom inspection result in step 2.

Are the malfunctions corrected?

YES

>> INSPECTION END

NO

>> GO TO 3.

INSPECTION AND ADJUSTMENT

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INSPECTION AND ADJUSTMENT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Description

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MEMORY RESET PROCEDURE

1.

Please observe the following instructions at confirming the sunroof operation.
NOTE:
Do not disconnect the electronic power while the sunroof is operating or within 5 seconds after the sunroof
stops (to wipe-out the memory of lid position and operating friction).

2.

Initialization of system should be conducted after the following conditions.
• When the sunroof motor is changed.
• When the sunroof does not operate normally. (Incomplete initialization conditions)

ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT : Special Repair Re-
quirement

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INITIALIZATION PROCEDURE

If the sunroof does not close or open automatically, use the following procedure to return sunroof operation to
normal.
1.

Press the tilt up switch and start the tilt up operation.

2.

Release the tilt up switch once, press the tilt up switch again, press and hold the switch until lid pops up.

3.

The glass lid moves slight toward tilt up direction then stop. (Press and hold the switch during this opera-
tion)

4.

Release the switch again, and press the tilt up switch within the first 10 seconds. (Press and hold the
switch)

5.

After 4 seconds, the glass lid will be automatically operated in sequence of tilt down, slide open and slide
close.

6.

After the glass lid stops, release the switch 0.5 second later. (Press and hold the switch during this opera-
tion)

7.

If slide switch operates normally, this initialization is done.

ANTI-PINCH FUNCTION

1.

Full open the sunroof.

2.

Place a wooden piece (wooden hammer handle,etc.) at near fully closed position.

3.

Close the sunroof completely with auto-slide close.

Check that sunroof lowers for approximately 150 mm (5.91in) or 2 seconds with out pinching a wooden piece
and stops.

CAUTION:

• Never check with hands and other part of body because they may be pinched. Never get pinched.
• Depending on environment and driving conditions, if a similar impact or lord is applied to the sun-

roof it may lower.

• Check that auto-slide operates before inspection when system initialization is performed.
• Perform initial setting when auto-slide operation or anti-pinch function does not operate normally.

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< DTC/CIRCUIT DIAGNOSIS >

POWER SUPPLY AND GROUND CIRCUIT

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

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SUNROOF MOTOR ASSEMBLY

1.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect sunroof motor assembly harness connector.

3.

Check continuity between sunroof motor assembly harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> Repair or replace harness or connector.

2.

CHECK POWER SUPPLY CIRCUIT-I

1.

Turn ignition switch ON.

2.

Check voltage between sunroof motor assembly harness connector and ground.

Is the inspection result normal?

YES

>> Check intermittent incident. Refer to 

GI-40, "Intermittent Incident"

.

NO

>> GO TO 3.

3.

CHECK POWER SUPPLY CIRCUIT-II

1.

Turn ignition switch OFF.

2.

Disconnect BCM harness connector and power window main switch harness connector.

3.

Check continuity between BCM harness connector and sunroof motor assembly harness connector.

4.

Check continuity between sunroof motor assembly harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness or connector.

4.

CHECK POWER SUPPLY CIRCUIT-III

1.

Check continuity between BCM harness connector and sunroof motor assembly harness connector.

Sunroof motor assembly

Ground

Continuity 

 Connector

Terminal

R4

1

Existed

(+)

(–)

Voltage (V)

(Approx.)

Sunroof motor assembly 

 Connector

Terminal 

R4

3

Ground

12

6

BCM

Sunroof motor assembly

Continuity

Connector

Terminal

 Connector

Terminal

M70

68

R4

3

Existed

Sunroof motor assembly

Ground

Continuity 

 Connector

Terminal

R4

3

Not existed