Infiniti FX35 / FX45. Manual - part 193

POWER DOOR LOCK SYSTEM

BL-39

< 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

>> Door switch circuit is OK.

NG

>> GO TO 2.

2.

CHECK DOOR SWITCH CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect door switch and BCM connector.

3.

Check continuity between door switch connector B26, B36, B46,
B206 terminals 1 and BCM connector M3, B14 terminals 62, 12,
63, 13.

4.

Check continuity between door switch connector B26, B36, B46,
B206 terminal 1 and ground.

OK or NG

OK

>> GO TO 3.

Item

Connector

Terminals

(Wire color)

Door

condition

Voltage (V)

(Approx.)

(+)

(-) 

Driver side

B14

62 (W)

Ground

CLOSE

↓

OPEN

Battery voltage

↓

0

Rear LH 

63 (P)

Passenger side

M3

12 (P/B)

Rear RH

13 (P/L)

PIIA7003E

Driver side door 

1 (W) – 62 (W)

: Continuity should exist.

Passenger side door

1 (SB) – 12 (P/B)

: Continuity should exist.

Rear door LH

1 (P) – 63 (P)

: Continuity should exist.

Rear door RH

1 (P) – 13 (P/L)

: Continuity should exist.

1 (W, SB, P) – Ground

: Continuity should not exist.

PIIA7004E

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< SERVICE INFORMATION >

POWER DOOR LOCK SYSTEM

NG

>> Repair or replace harness.

3.

CHECK DOOR SWITCH

Check continuity between door switch terminal 1 and ground part of
door switch.

OK or NG

OK

>> Check door switch case ground condition.

NG

>> Replace door switch.

CHECK BACK DOOR SWITCH

1.

CHECK BACK DOOR SWITCH INPUT SIGNAL

 With CONSULT-III

Check door switches (“BACK DOOR SW”) in “DATA MONITOR” mode with CONSULT-III.

Without CONSULT-III

Check voltage between BCM connector and ground.

OK or NG

OK

>> Door switch circuit is OK.

NG

>> GO TO 2.

2.

CHECK BACK DOOR SWITCH CIRCUIT 

1.

Turn ignition switch OFF.

2.

Disconnect back door switch connector.

Terminal

Door switch condition

Continuity

1

Ground part of door switch

Pushed

No

Released

Yes

PIIA3351E

Monitor item

Condition

BACK DOOR SW

CLOSE 

→

 OFF 

OPEN 

→

 ON

Item

Connector

Terminal

(Wire color)

Back door 

condition

Voltage (V)

(Approx.)

(+)

(-) 

Back door switch

B14

58 (L)

Ground

CLOSE

↓

OPEN

9

↓

0

PIIA6473E

POWER DOOR LOCK SYSTEM

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< SERVICE INFORMATION >

C

D

E

F

G

H

J

K

L

M

A

B

BL

N

O

P

3.

Check voltage between back door switch connector D109 termi-
nal 7 and ground. (Check harness for open.)

4.

Check continuity between back door switch connector D109 ter-
minal 7 and ground. (Check harness for short.)

OK or NG

OK

>> GO TO 3.

NG

>> Repair or replace harness.

3.

CHECK BACK DOOR SWITCH

Check continuity between back door switch terminals 7 and 8.

OK or NG

OK

>> GO TO 4.

NG

>> Replace back door closure motor (door switch).

4.

CHECK BACK DOOR SWITCH GROUND HARNESS

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

7 (L) – Ground

: Approx. 9V

PIIA6474E

7 (L) – Ground

: Continuity should not exist.

PIIA6475E

Terminal

Back door condition

Continuity

7

8

Closed

No

Opened

Yes

PIIA6476E

8 (B) – Ground

: Continuity should exist.

PIIA6477E

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< SERVICE INFORMATION >

POWER DOOR LOCK SYSTEM

OK or NG

OK

>> Check harness connection.

NG

>> Repair or replace harness.

Check Key Switch

INFOID:0000000001327804

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 and ground.

OK or NG

OK

>> Key switch circuit is OK.

NG

>> GO TO 2. (With Intelligent Key) 

NG

>> GO TO 3. (Without Intelligent Key)

2.

CHECK KEY SWITCH (WITH INTELLIGENT KEY)

1.

Disconnect key switch and ignition knob switch connector.

2.

Check continuity between key switch or key switch and ignition
knob switch terminals 3 and 4.

OK or NG

OK

>>

Check the following.

• 15A fuse (No. 22, located in fuse and fusible link block)
• Harness for open or short between key switch and fuse
• Harness for open or short between BCM and key switch

NG

>> Replace key switch or key switch and ignition knob switch.

3.

CHECK KEY SWITCH (WITHOUT INTELLIGENT KEY)

KEY ON SW

: ON

KEY ON SW

: OFF

Connector

Terminal

Condition of key switch

Voltage (V)

Approx.

(+)

(-)

M3

37

(B/W)

Ground

Key is inserted in IGN 
key cylinder.

Battery voltage

Key is removed from IGN 
key cylinder.

 0

PIIA6378E

Terminal

Condition of key switch

Continuity

3

4

Key is inserted in IGN key cylinder.

Yes

Key is removed from IGN key cylinder.

No

PIIA6140E