Infiniti FX35 / FX45. Manual - part 200

REMOTE KEYLESS ENTRY SYSTEM

BL-67

< SERVICE INFORMATION >

C

D

E

F

G

H

J

K

L

M

A

B

BL

N

O

P

Without CONSULT-III

Check voltage between BCM connector and ground.

OK or NG

OK

>> Back door switch circuit is OK.

NG

>> GO TO 2.

2.

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect BCM and back door closure motor connector.

3.

Check continuity between BCM connector B14 terminal 58 and
back door closure motor connector D109 terminal 7.

4.

Check continuity between BCM connector B14 terminal 58 and
ground.

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

3.

CHECK GROUND CIRCUIT

Check continuity between back door closure motor connector D109
terminal 8 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness.

4.

CHECK BACK DOOR SWITCH

Monitor item

Condition

DATA MONITOR

BACK DOOR SW

OPEN

↓

CLOSE

ON

↓

OFF

Connector

Terminals (Wire color)

Condition

Voltage (V)

(Approx.)

(+)

(–)

B14

58 (L)

Ground

OPEN

0

CLOSE

9

PIIA6229E

58 (L) – 7 (L)

: Continuity should exist.

58 (L) – Ground

: Continuity should not exist.

PIIA6226E

8 (B) – Ground

: Continuity should exist.

PIIA6170E

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< SERVICE INFORMATION >

REMOTE KEYLESS ENTRY SYSTEM

Check continuity between back door closure motor D109 terminals 7
and 8.

OK or NG

OK

>> GO TO 5.

NG

>> Replace back door closure motor.

5.

CHECK BCM OUTPUT SIGNAL

1.

Connect BCM connector.

2.

Check voltage between BCM connector and ground.

OK or NG

OK

>> Check condition of harness and connector.

NG

>> Replace BCM.

Check Key Switch

INFOID:0000000001327826

1.

CHECK KEY SWITCH INPUT SIGNAL

 With CONSULT-III

Check ignition key switch “KEY ON SW” in “DATA MONITOR” mode with CONSULT-III.
• When key is inserted in ignition key cylinder

• When key is removed from ignition key cylinder

Without CONSULT-III

Check voltage between BCM connector M3 terminal 37 (B/W) and
ground.

OK or NG

OK

>> Key switch circuit is OK.

NG

>> GO TO 2.

2.

CHECK KEY SWITCH

Terminals

Back door condition

Continuity

7

8

Open

Yes

Close

No

PIIA9934E

58 (L) – Ground

: Approx. 9V

PIIA6229E

KEY ON SW

: ON

KEY ON SW

: OFF

Condition of ignition key cylinder

Voltage (V)

Approx.

Key is inserted

Battery voltage

Key is removed

 0

PIIA6471E

REMOTE KEYLESS ENTRY SYSTEM

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< SERVICE INFORMATION >

C

D

E

F

G

H

J

K

L

M

A

B

BL

N

O

P

1.

Disconnect key switch connector.

2.

Check continuity between key switch terminals 1 and 2.

OK or NG

OK

>>

Check the following.

• 15A fuse [No. 22, located in fuse block (J/B)]
• Harness for open or short between key switch and fuse
• Harness for open or short between BCM and key switch

NG

>> Replace key switch.

Check Remote Keyless Entry Receiver

INFOID:0000000001327827

1.

CHECK REMOTE KEYLESS ENTRY RECEIVER OUTPUT SIGNAL

1.

Turn ignition switch OFF.

2.

Check remote keyless entry receiver connector M98 terminal 2
(L) and ground signal with oscilloscope.

OK or NG

OK

>> Remote keyless entry receiver circuit is OK.

NG

>> GO TO 2.

2.

CHECK REMOTE KEYLESS ENTRY RECEIVER INPUT VOLTAGE

1.

Disconnect remote keyless entry receiver connector.

2.

Check voltage between remote keyless entry receiver connector M98 terminal 4 (R) and ground.

Terminal

Key switch condition

Continuity

1

2

Key is inserted in IGN key cylinder.

Yes

Key is removed from IGN key cylinder

No

PIIA2627E

Connector

Terminal

 (Wire color)

Condition 

of keyfob

Voltage

(Reference value)

(+)

(–)

M98

2

Ground

No function

Any button 

is pressed

PIIB1375E

OCC3879D

OCC3880D

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< SERVICE INFORMATION >

REMOTE KEYLESS ENTRY SYSTEM

OK or NG

OK

>> GO TO 4.

NG

>> GO TO 3.

3.

CHECK REMOTE KEYLESS ENTRY RECEIVER POWER SUPPLY CIRCUIT

1.

Disconnect BCM connector.

2.

Check continuity between remote keyless entry receiver connector M78 terminal 4 (R) and BCM connec-
tor M1 terminal 19 (R).

3.

Check continuity between remote keyless entry receiver connector M78 terminal 4 (R) and ground.

OK or NG

OK

>>

Check harness connection.

• If it is OK, replace BCM.
• If it is NG, repair or replace malfunction part.

NG

>> Repair or replace the harness.

4.

CHECK REMOTE KEYLESS ENTRY RECEIVER GROUND CIRCUIT

1.

Check continuity between remote keyless entry receiver con-
nector M78 terminal 1 (B) and ground.

OK or NG

OK

>> GO TO 6.

NG

>> GO TO 5.

4 (Y) – Ground

: Approx. 4.5V

PIIB3953E

4 (R) – 19 (R)

: Continuity should exist.

4 (R) – Ground

: Continuity should not exist.

PIIA9630E

1 (B) – Ground

: Continuity should exist.

PIIB1376E