Infiniti EX35. Manual - part 1304

SEC-112

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

POWER SUPPLY AND GROUND CIRCUIT

POWER SUPPLY AND GROUND CIRCUIT

BCM

BCM : Diagnosis Procedure

INFOID:0000000003586633

1.

CHECK FUSE AND FUSIBLE LINK

Check that the following fuse and fusible link are not blown.

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect BCM connectors.

3.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair or replace harness or connector.

IPDM E/R

IPDM E/R : Diagnosis Procedure

INFOID:0000000003586634

1.

CHECK FUSES AND FUSIBLE LINK

Check that the following IPDM E/R fuses or fusible links are not blown.

Is the fuse fusing?

Signal name

Fuse and fusible link No.

Battery power supply

K

10

(+)

(

−

)

Voltage (V)

(Approx.)

BCM

Connector

Terminal

M118

1

Ground

Battery voltage

M119

11

M123

116

BCM

Ground

Continuity

Connector

Terminal

M119

13

Existed

Signal name

Fuses and fusible link No.

Battery power supply

48

50

51

POWER SUPPLY AND GROUND CIRCUIT

SEC-113

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

NO

>> GO TO 2.

2.

CHECK POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

Disconnect IPDM E/R connector.

3.

Check voltage between IPDM E/R harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

NO

>> Repair harness or connector.

3.

CHECK GROUND CIRCUIT

Check continuity between IPDM E/R harness connectors and ground.

Does continuity exist?

YES

>> INSPECTION END

NO

>> Repair harness or connector.

(+)

(

−

)

Voltage

(Approx.)

IPDM E/R

Connector

Terminal

E4

1

Ground

Battery voltage

IPDM E/R

Ground

Continuity

Connector

Terminal

E5

12

Existed

E6

41

SEC-114

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

HOOD SWITCH

HOOD SWITCH

Description

INFOID:0000000003674378

Hood switch is built into hood lock (RH) and connected to IPDM E/R which detects the open/close condition of
hood.

Component Function Check

INFOID:0000000003674379

1.

CHECK FUNCTION

1.

Select “HOOD SW” in “Data Monitor” mode with CONSULT-III. 

2.

Check the hood switch signal under the following condition.

Is the indication normal?

YES

>> Hood switch is OK.

NO

>> Go to  

SEC-114, "Diagnosis Procedure"

.

Diagnosis Procedure

INFOID:0000000003674380

1.

CHECK HOOD SWITCH SIGNAL

1.

Turn ignition switch OFF.

2.

Check voltage between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> GO TO 2.

2.

CHECK HOOD SWITCH CIRCUIT

1.

Disconnect IPDM E/R connector E9 and hood switch connector.

2.

Check continuity between IPDM E/R harness connector and hood switch harness connector.

3.

Check continuity between IPDM E/R harness connector and ground.

Is the inspection result normal?

YES

>> GO TO 3.

NO

>> Repair or replace harness.

3.

CHECK IPDM E/R OUTPUT

1.

Connect IPDM E/R connector.

2.

Check voltage between IPDM E/R harness connector and ground.

Test item

Condition

Status

HOOD SW

Hood

Open

ON

Close

OFF

(+)

(–)

Condition

Voltage (V)

(Approx.)

IPDM E/R

Connector

Terminal

E9

104

Ground

Hood

Open

0

Close

Battery voltage

IPDM E/R

Hood switch

Continuity

Connector

Terminal

Connector

Terminal

E9

104

E30

2

Existed

IPDM E/R

Ground

Continuity 

Connector

Terminal

E9

104

Not existed

HOOD SWITCH

SEC-115

< COMPONENT DIAGNOSIS >

[INTELLIGENT KEY SYSTEM]

C

D

E

F

G

H

I

J

L

M

A

B

SEC

N

O

P

Is the inspection result normal?

YES

>> GO TO 4.

NO

>> Replace IPDM E/R. Refer to 

PCS-34, "Removal and Installation"

.

4.

CHECK HOOD SWITCH

Refer to 

SEC-115, "Component Inspection"

.

Is the inspection result normal?

YES

>> GO TO 5.

NO

>> Replace hood switch.

5.

CHECK INTERMITTENT INCIDENT

Refer to 

GI-38, "Intermittent Incident"

.

>> INSPECTION END

Component Inspection

INFOID:0000000003674381

1.

CHECK HOOD SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect hood switch connector.

3.

Check continuity between hood switch terminals.

Is the inspection result normal?

YES

>> INSPECTION END

NO

>> Replace hood lock (RH).

(+)

(–)

Voltage (V)

(Approx.)

IPDM E/R

Connector

Terminal

E9

104

Ground

Battery voltage

Hood switch

Condition

Continuity

Terminal

1

2

Hood switch

Press

Not existed

Release

Existed