Nissan Maxima. Manual - part 960

POWER SUPPLY AND GROUND CIRCUIT

RF-13

< DTC/CIRCUIT DIAGNOSIS >

[WITH SINGLE PANEL SUNROOF]

C

D

E

F

G

H

I

J

L

M

A

B

RF

N

O

P

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

BCM
BCM : Diagnosis Procedure

INFOID:0000000010064717

Regarding Wiring Diagram information, refer to 

BCS-67, "Wiring Diagram"

.

1.

 CHECK FUSE AND FUSIBLE LINK

Check if the following BCM fuses or fusible link are blown.

Is the fuse or fusible link blown?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit.

NO

>> GO TO 2

2.

 CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect BCM.

3. Check voltage between BCM harness connector and ground.

Is the measurement normal?

YES

>> GO TO 3

NO

>> Repair or replace harness.

3.

 CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> Inspection End.

NO

>> Repair or replace harness.

SUNROOF MOTOR ASSEMBLY
SUNROOF MOTOR ASSEMBLY : Description

INFOID:0000000009465669

• BCM supplies power.

Terminal No.

Signal name

Fuse and fusible link No.

1

Battery power supply

H

11

10

24

7

Terminals

Voltage

(Approx.)

(+)

(

−)

BCM

Ground

Connector

Terminal

M16

1

Battery voltage

M17

11

M18

24

BCM

Ground

Continuity

Connector

Terminal

M17

13

Yes

RF-14

< DTC/CIRCUIT DIAGNOSIS >

[WITH SINGLE PANEL SUNROOF]

POWER SUPPLY AND GROUND CIRCUIT

• CPU is integrated in sunroof motor assembly.

• Tilts up/down & slides open/close by sunroof switch operation.

• In order to close sunroof lid certainly with the signal from combination meter at the time of high speed run,

the sunroof motor torque at the time of tilt-down operation is controlled.

SUNROOF MOTOR ASSEMBLY : Component Function Check

INFOID:0000000009465670

1.

 CHECK SUNROOF MOTOR FUNCTION

Do tilt up/down & slide open/close functions operate normally with sunroof switch?
Is the inspection result normal?

YES

>> Sunroof motor assembly is OK.

NO

>> Refer to 

RF-14, "SUNROOF MOTOR ASSEMBLY : Diagnosis Procedure"

.

SUNROOF MOTOR ASSEMBLY : Diagnosis Procedure

INFOID:0000000009465671

Regarding Wiring Diagram information, refer to 

RF-49, "Wiring Diagram"

.

SUNROOF MOTOR ASSEMBLY

1.

 CHECK POWER SUPPLY CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect sunroof motor assembly.

3. Turn ignition switch ON.

4. Check voltage between sunroof motor assembly connector and

ground.

Is the measurement value within the specification?

YES

>> GO TO 2

NO

>> GO TO 3

2.

 CHECK GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Check continuity between sunroof motor assembly connector

and ground.

Is the inspection result normal?

YES

>> GO TO 5

NO

>> Repair or replace harness.

3.

 CHECK SUNROOF MOTOR CIRCUIT

Terminal

Voltage (V)

(Approx.)

(+)

(–)

Sunroof motor assembly 

connector

Terminal 

R5

4

Ground

Battery voltage

10

AWKIA1407ZZ

Sunroof motor assembly 

connector

Terminal

Ground

Continuity 

R5

8

Yes

AWKIA1408ZZ

POWER SUPPLY AND GROUND CIRCUIT

RF-15

< DTC/CIRCUIT DIAGNOSIS >

[WITH SINGLE PANEL SUNROOF]

C

D

E

F

G

H

I

J

L

M

A

B

RF

N

O

P

1. Turn ignition switch OFF.

2. Disconnect BCM.

3. Check continuity between BCM connector (A) and sunroof

motor assembly connector (B).

4. Check continuity between BCM connector (A) and ground.

Is the inspection result normal?

YES

>> GO TO 4

NO

>> Repair or replace harness.

4.

 CHECK BCM OUTPUT SIGNAL

1. Connect BCM.

2. Turn ignition switch ON.

3. Check voltage between BCM connector and ground.

Is the measurement value within the specification?

YES

>> Check condition of harness and connector.

NO

>> Replace BCM. Refer to 

BCS-79, "Removal and Installation"

.

5.

 CHECK SUNROOF SWITCH INPUT SIGNAL 

1. Connect sunroof motor assembly.

2. Turn ignition switch ON.

3. Check voltage between sunroof motor assembly connector and

ground.

Is the measurement value within the specification?

YES

>> GO TO 8

NO

>> GO TO 6

6.

 CHECK SUNROOF SWITCH CIRCUIT

BCM connector

Terminal

Sunroof motor as-

sembly connector

Terminal

Continuity

M16 (A)

2

R5 (B)

10

Yes

3

4

BCM connector

Terminal

Ground

Continuity

M16 (A)

2

No

3

AWKIA1409ZZ

Terminals

Voltage (V)

(Approx.)

(+)

(–)

BCM connector

Terminal 

M16

2

Ground

Battery voltage

3

ALKIA0262ZZ

Sunroof mo-

tor assembly 

connector

Terminals

Condition

Voltage (V)

(Approx.)

(+)

(–)

R5

6

Ground

Sunroof switch is operated
TILT DOWN or SLIDE 
OPEN

0

Other than above

Battery voltage

2

Sunroof switch is operated 
TILT UP or SLIDE CLOSE

0

Other than above

Battery voltage

AWKIA1410ZZ

RF-16

< DTC/CIRCUIT DIAGNOSIS >

[WITH SINGLE PANEL SUNROOF]

POWER SUPPLY AND GROUND CIRCUIT

1. Turn ignition switch OFF.

2. Disconnect sunroof motor assembly and sunroof switch.

3. Check continuity between sunroof motor assembly connector

(A) and sunroof switch connector (B).

4. Check continuity between sunroof motor assembly connector

(A) and ground. 

Is the inspection result normal?

YES

>> GO TO 7

NO

>> Repair or replace harness.

7.

 CHECK SUNROOF SWITCH GROUND CIRCUIT

1. Connect sunroof motor assembly.

2. Check continuity between sunroof switch connector and ground.

Is the inspection result normal?

YES

>> Refer to 

RF-17, "SUNROOF MOTOR ASSEMBLY :

Component Inspection"

.

NO

>> Repair or replace harness.

8.

 CHECK COMBINATION METER SIGNAL 

1. Connect sunroof motor assembly.

2. Turn ignition switch ON.

3. Check signal between sunroof motor assembly connector and

ground with oscilloscope.

Is the inspection result normal?

YES

>> Replace sunroof motor assembly. Refer to 

RF-72, "Removal and Installation"

. After that, refer to

RF-7, "BASIC INSPECTION : Special Repair Requirement"

.

Sunroof motor as-

sembly connector

Terminal

Sunroof switch 

connector

Terminal

Continuity

R5 (A)

6

R6 (B)

1

Yes

2

3

Sunroof motor assembly 

connector

Terminal

Ground

Continuity

R5 (A)

6

No

2

AWKIA1411ZZ

Sunroof switch connector

Terminal

Ground

Continuity 

R6

2

Yes

ALKIA0265ZZ

Terminals

Condition 

 Signal

(Reference value)

(+)

(-)

 Sunroof 

motor as-

sembly 

connector

Terminal

Ground

R5

9

Speedome-

ter operated 
[When vehi-

cle speed is 

ap-

prox.40km/h 

(25MPH)]

AWKIA1412ZZ

ELF1080D