Nissan Quest E52. Instruction — part 1020

POWER SUPPLY AND GROUND CIRCUIT

RF-23

< DTC/CIRCUIT DIAGNOSIS >

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1.

Turn ignition switch OFF.

2.

Disconnect front sunroof motor assembly and rear sunroof motor assembly harness connector.

3.

Turn ignition switch ON.

4.

Check voltage between rear sunroof motor assembly harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM harness connector.

3.

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

4.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Check BCM power supply and ground circuit. Refer to

BCS-91, "Diagnosis Procedure"

.

NO

>> Repair or replace harness.

3.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between rear sunroof motor assembly harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace harness.

(+)

(–)

Voltage (V)

Rear sunroof motor assembly

Connector

Terminal

R32

6

Ground

Battery voltage

BCM

Rear sunroof motor assembly

Continuity

Connector

Terminal

Connector

Terminal

M123

69

R32

6

Existed

BCM

Ground

Continuity

Connector

Terminal

M123

69

Not existed

Rear sunroof motor assembly

Ground

Continuity

Connector

Terminal

R32

1

Existed

RF-24

< DTC/CIRCUIT DIAGNOSIS >

FRONT SUNROOF MOTOR ASSEMBLY

FRONT SUNROOF MOTOR ASSEMBLY

Component Function Check

INFOID:0000000009650358

1.

CHECK FUNCTION-I

Check tilt up/down and slide open/close operations with front sunroof switch.
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK FUNCTION-II

1.

Perform initialization procedure. Refer to

RF-21, "FRONT SUNROOF : Special Repair Requirement"

.

2.

Check tilt up/down and slide open/close operations with front sunroof switch.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Refer to

RF-24, "Diagnosis Procedure"

.

3.

CHECK FUNCTION-III

1.

Start engine.

2.

Drive the vehicle at more than 40 km/h (25 MPH).

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.
If a road test is expected to be easier, it is unnecessary to lift the vehicle.

3.

Check tilt up/down and slide open/close operations with front sunroof switch.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Refer to

RF-24, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009650359

1.

CHECK IGNTION ON SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect front sunroof motor assembly and rear sunroof motor assembly harness connector.

3.

Turn ignition switch ON.

4.

Check voltage between front sunroof motor assembly harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK IGNTION ON SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM harness connector.

3.

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

4.

Check continuity between BCM harness connector and ground.

(+)

(–)

Voltage (V)

Front sunroof motor assembly

Connector

Terminal

R31

3

Ground

Battery voltage

BCM

Front sunroof motor assembly

Continuity

Connector

Terminal

Connector

Terminal

M123

68

R31

3

Existed

FRONT SUNROOF MOTOR ASSEMBLY

RF-25

< DTC/CIRCUIT DIAGNOSIS >

C

D

E

F

G

H

I

J

L

M

A

B

RF

N

O

P

Is the inspection result normal?

YES

>> Check BCM power supply and ground circuit. Refer to

BCS-91, "Diagnosis Procedure"

.

NO

>> Repair or replace harness.

3.

CHECK VEHICLE SPEED SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect combination meter harness connector.

3.

Check continuity between front sunroof motor assembly harness connector and combination meter har-
ness connector.

4.

Check continuity between front sunroof motor assembly harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Repair or replace harness.

4.

CHECK COMBINATION METER

Check combination meter.
Refer to

MWI-69, "DTC Logic"

.

Is the inspection result normal?

YES

>> Replace front sunroof motor assembly. Refer to

RF-53, "FRONT SUNROOF : Removal and

Installation"

.

NO

>> Repair or replace malfunctioning parts.

BCM

Ground

Continuity

Connector

Terminal

M123

68

Not existed

Front sunroof motor assembly

Combination meter

Continuity

Connector

Terminal

Connector

Terminal

R31

8

M34

31

Exists

Front sunroof motor assembly

Ground

Continuity

Connector

Terminal

R31

8

Not existed

RF-26

< DTC/CIRCUIT DIAGNOSIS >

REAR SUNROOF MOTOR ASSEMBLY

REAR SUNROOF MOTOR ASSEMBLY

Component Function Check

INFOID:0000000009650360

1.

CHECK FUNCTION-I

Check tilt up/down and slide open/close operations with rear sunroof switch (front/rear).
Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK FUNCTION-II

1.

Perform initialization procedure. Refer to

RF-21, "REAR SUNROOF : Special Repair Requirement"

.

2.

Check tilt up/down and slide open/close operations with rear sunroof switch (front/rear).

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Refer to

RF-26, "Diagnosis Procedure"

.

3.

CHECK FUNCTION-III

1.

Start engine.

2.

Drive the vehicle at more than 40 km/h (25 MPH).

CAUTION:

Always drive vehicle at a safe speed.
NOTE:
This procedure may be conducted with the drive wheels lifted in the shop or by driving the vehicle.
If a road test is expected to be easier, it is unnecessary to lift the vehicle.

3.

Check tilt up/down and slide open/close operations with rear sunroof switch (front/rear).

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Refer to

RF-26, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000009650361

1.

CHECK IGNTION ON SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect front sunroof motor assembly and rear sunroof motor assembly harness connector.

3.

Turn ignition switch ON.

4.

Check voltage between rear sunroof motor assembly harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK IGNTION ON SIGNAL CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM harness connector.

3.

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

4.

Check continuity between BCM harness connector and ground.

(+)

(–)

Voltage (V)

Rear sunroof motor assembly

Connector

Terminal

R32

3

Ground

Battery voltage

BCM

Rear sunroof motor assembly

Continuity

Connector

Terminal

Connector

Terminal

M123

68

R32

3

Existed