Infiniti FX35, FX50 (S51). Manual - part 1557

POWER SUPPLY AND GROUND CIRCUIT

RF-9

< DTC/CIRCUIT DIAGNOSIS >

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DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

SUNROOF MOTOR ASSEMBLY

SUNROOF MOTOR ASSEMBLY : Diagnosis Procedure

INFOID:0000000005248617

1.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect sunroof motor assembly connector.

3.

Turn ignition switch ON.

4.

Check voltage between sunroof motor assembly harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 3.

2.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between sunroof motor assembly harness connector and ground.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Repair or replace harness.

3.

CHECK SUNROOF MOTOR CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connector.

3.

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

4.

Check continuity between BCM harness connector and ground.

Is the inspection result normal?

YES

>> Replace BCM. Refer to 

BCS-83, "Removal and Installation"

.

NO

>> Repair or replace harness.

(+)

(–)

Voltage (V)

(Approx.)

Sunroof motor assembly 

 Connector

Terminal 

R4

9

Ground

Battery voltage

7

Sunroof motor assembly

Ground

Continuity 

 Connector

Terminal

R4

10

Existed

BCM

Sunroof motor assembly

Continuity

Connector

Terminal

 Connector

Terminal

M118

2

R4

7

Existed

3

9

BCM

Ground

Continuity

 Connector

Terminal

M118

2

Not existed

3

RF-10

< DTC/CIRCUIT DIAGNOSIS >

SUNROOF SWITCH

SUNROOF SWITCH

Description

INFOID:0000000005248618

Tilt up/down and slide open/close by sunroof switch operation.

Component Function Check

INFOID:0000000005248619

1.

CHECK SUNROOF MOTOR OPERATION

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

Is the inspection result normal?

YES

>> Sunroof switch is OK.

NO

>> Refer to 

RF-10, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005248620

SUNROOF SWITCH

1.

CHECK SUNROOF SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect sunroof switch connector.

3.

Turn ignition switch ON.

4.

Check voltage between sunroof switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 2.

NO

>> GO TO 4.

2.

CHECK GROUND CIRCUIT

1.

Turn ignition switch OFF.

2.

Check continuity between sunroof switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK SUNROOF SWITCH

Check sunroof switch.
Refer to 

RF-11, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace sunroof switch (built in map lamp assembly). Refer to 

RF-83, "Removal and Installation"

.

4.

CHECK SUNROOF SWITCH CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect sunroof motor assembly connector.

3.

Check continuity between sunroof switch assembly harness connector and sunroof switch harness con-
nector.

(+)

(–)

Voltage (V)

(Approx.)

Sunroof switch

Connector

Terminal

R16

1

Ground

Battery voltage

3

Sunroof switch

Ground

Continuity

Connector

Terminal

R16

2

Existed

SUNROOF SWITCH

RF-11

< DTC/CIRCUIT DIAGNOSIS >

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4.

Check continuity between sunroof switch assembly harness connector and ground.

Is the inspection result normal?

YES

>> Replace sunroof motor assembly.

RF-75, "Removal and Installation"

NO

>> Repair or replace harness.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-36, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000005248621

SUNROOF SWITCH

1.

CHECK SUNROOF SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect sunroof switch connector.

3.

Check continuity between sunroof switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace sunroof switch (built in map lamp assembly). Refer to 

RF-83, "Removal and Installation"

.

Sunroof switch

Sunroof motor assembly

Continuity

Connector

Terminal

Connector

Terminal

R16

1

R4

5

Existed

3

1

Sunroof motor assembly

Ground

Continuity

Connector

Terminal

R4

5

Not existed

1

Terminals

Condition

Continuity

1 

2

Sunroof switch

TILT the DOWN/SLIDE OPEN

Existed

Other than the above

Not existed

3 

TILT UP/SLIDE the CLOSE

Existed

Other than the above

Not existed

RF-12

< DTC/CIRCUIT DIAGNOSIS >

DOOR SWITCH

DOOR SWITCH

Description

INFOID:0000000005248622

Detects door open/closed condition.

Component Function Check

INFOID:0000000005248623

1.

CHECK FUNCTION

Check door switches (“DOOR SW-DR”, “DOOR SW-AS”) in the “Data Monitor” mode using CONSULT-III.

Is the inspection result normal?

YES

>> Door switch is OK.

NO

>> Refer to 

RF-12, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000005248624

1.

CHECK FRONT DOOR SWITCH INPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Disconnect malfunctioning front door switch connector.

3.

Check voltage signal between malfunctioning front door switch harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> GO TO 2.

2.

CHECK DOOR SWITCH CIRCUIT 

1.

Disconnect BCM connector.

2.

Check continuity between BCM harness connector and malfunctioning door switch harness connector.

3.

Check continuity between BCM harness connector and ground.

Monitor item

Door condition

Display

DOOR SW-DR

CLOSE 

→

 OPEN

OFF 

→

 ON

DOOR SW-AS

(+)

(–)

Voltage (V)

(Approx.)

Front door switch

Connector

Terminal

Driver side

B16

2

Ground

Passenger side

B216

JPMIA0594GB

BCM

Front door switch

Continuity 

Connector

Terminal

Connector

Terminal

M123

124

B216

2

Existed

150

B16

BCM

Ground

Continuity 

Connector

Terminal

M123

124

Not existed

150