Infiniti FX35 / FX45. Manual - part 930

 

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Infiniti FX35 / FX45. Manual - part 930

 

 

SE-78

< SERVICE INFORMATION >

AUTOMATIC DRIVE POSITIONER

4.

CHECK HARNESS CONTINUITY

1.

Disconnect key switch connector and BCM connector.

2.

Check continuity between key switch connector M23 terminal 1
and BCM connector M3 terminal 37.

3.

Check continuity between key switch connector M23 terminal 1
and ground.

OK or NG

OK

>> Key switch circuit is OK.

NG

>> Repair or replace harness between key switch and

BCM.

Check Seat Memory Switch Circuit

INFOID:0000000001328141

1.

CHECK FUNCTION 

 With CONSULT-III

With “SET SW, MEMORY SW1, MEMORY SW2” on the DATA MONITOR, operate the switch to check ON/
OFF operation. 

OK or NG

OK

>> Seat memory switch circuit is OK.

NG

>> GO TO 2.

2.

CHECK SEAT MEMORY SWITCH

1.

Turn ignition switch OFF.

2.

Disconnect seat memory switch connector.

3.

Check continuity between seat memory switch connector D22 terminal 1, 2, 3 and 4.

OK or NG

OK

>> GO TO 3.

NG

>> Replace seat memory switch.

3.

CHECK HARNESS CONTINUITY

1.

Disconnect driver seat control unit connector.

1 (B/W) – 37 (B/W)

: Continuity should exist.

1 (B/W) – Ground

: Continuity should not exist.

PIIA5094E

Monitor item

 [OPERATION or UNIT]

Contents

MEMORY SW1

“ON/OFF”

ON/OFF status judged from the seat memory 
switch 1 signal is displayed.

MEMORY SW2

“ON/OFF”

ON/OFF status judged from the seat memory 
switch 2 signal is displayed.

SET SW

“ON/OFF”

ON/OFF status judged from the setting switch 
signal is displayed.

Connec-

tor

Terminals

Condition

Continuity

D22

1

4

Memory switch 1: ON

Yes

Memory switch 1: OFF

No

2

Memory switch 2: ON

Yes

Memory switch 2: OFF

No

Set switch: ON

Yes

Set switch: OFF

No

PIIA4575E

AUTOMATIC DRIVE POSITIONER

SE-79

< SERVICE INFORMATION >

C

D

E

F

G

H

J

K

L

M

A

B

SE

N

O

P

2.

Check continuity between driver seat control unit connector
B152 terminals 22, 34, 35 and seat memory switch connector
D22 terminals 1, 2, 3.

3.

Check continuity between driver seat control unit connector
B152 terminals 22, 34, 35 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between driver seat control unit and seat memory switch.

4.

CHECK SEAT MEMORY SWITCH GROUND CIRCUIT

Check continuity between seat memory switch connector D22 termi-
nal 4 and ground.

OK or NG

OK

>> Replace driver seat control unit.

NG

>> Repair or replace harness between seat memory switch

and ground.

Check Seat Memory Indicator Lamp Circuit

INFOID:0000000001328142

1.

CHECK FUNCTION 

 With CONSULT-III

With “MEMORY SW INDCTR” in ACTIVE TEST, check operation.

OK or NG

OK

>> Seat memory indicator lamp circuit is OK.

NG

>> GO TO 2.

2.

CHECK SEAT MEMORY SWITCH POWER SUPPLY CIRCUIT

1.

Turn ignition switch OFF.

2.

 Disconnect seat memory switch connector.

22 (R/B) – 1 (P)

: Continuity should exist.

34 (L/W) – 3 (GY)

: Continuity should exist.

35 (L/B) – 2 (LG)

: Continuity should exist.

22 (R/B) – Ground

: Continuity should not exist.

34 (L/W) – Ground

: Continuity should not exist.

35 (L/B) – Ground

: Continuity should not exist.

PIIB8598E

4 (B) – Ground

: Continuity should exist. 

PIIA4821E

Test item

Description

MEMORY SW 
INDCTR

The memory switch indicator is lit by receiving the drive signal.

SE-80

< SERVICE INFORMATION >

AUTOMATIC DRIVE POSITIONER

3.

Check voltage between seat memory switch connector D22 ter-
minal 5 and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between fuse block (J/B) and

seat memory switch.

3.

CHECK HARNESS CONTINUITY

1.

Disconnect driver seat control unit connector.

2.

Check continuity between driver seat control unit connector
B152 terminals 23, 36 and seat memory switch connector D22
terminals 6, 7. 

3.

Check continuity between driver seat control unit connector
B152 terminals 23, 36 and ground.

OK or NG

OK

>> GO TO 5.

NG

>> Repair or replace harness between driver seat control unit and seat memory switch.

4.

CHECK SEAT MEMORY SWITCH INDICATOR SIGNAL

Check voltage between driver seat control unit connector B152 ter-
minals 23, 36 and ground.

OK or NG

OK

>> Seat memory indicator lamp circuit is OK.

NG

>> Replace seat memory switch.

Check UART Communication Line Circuit

INFOID:0000000001328143

1.

CHECK UART LINE HERNESS

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector and automatic drive positioner control unit connector.

5 (R) – Ground

: Battery voltage

PIIA4595E

23 (Y/W) – 6 (PU)

: Continuity should exist.

36 (Y/G) – 7 (L)

: Continuity should exist.

23 (Y/W) – Ground

: Continuity should not exist.

36 (Y/G) – Ground

: Continuity should not exist.

PIIB8599E

23 (Y/W) – Ground

: Battery voltage

36 (Y/G) – Ground

: Battery voltage

PIIA5078E

AUTOMATIC DRIVE POSITIONER

SE-81

< SERVICE INFORMATION >

C

D

E

F

G

H

J

K

L

M

A

B

SE

N

O

P

3.

Check continuity between driver seat control unit connector
B152 terminal 2, 8 and automatic drive positioner connector
M49 terminal 10, 26.

4.

Check continuity between driver seat control unit connector
B152 terminal 2, 8 and ground.

OK or NG

OK

>> GO TO 2.

NG

>> Repair or replace harness between driver seat control unit and automatic drive positioner control

unit.

2.

CHECK UART LINE SIGNAL 1

1.

Turn ignition switch ON.

2.

Check signal between driver seat control unit connector ground, with oscilloscope.

OK or NG

OK

>> GO TO 3.

NG

>>

Check the flowing.

• When voltage signal dose not appear with a constant voltage (approx. 5V), replace driver seat

control unit.

• When voltage signal dose not appear with a constant voltage (approx. 0V), replace automatic

drive positioner control unit.

3.

CHECK UART LINE SIGNAL 2

Check signal between automatic driver positioner control unit connector ground, with oscilloscope.

OK or NG

OK

>> GO TO 4.

NG

>>

Check the flowing.

2 (P) 

 26 (W)

: Continuity should exist.

8 (G/Y) 

 10 (B)

: Continuity should exist.

2 (P) 

 Ground

: Continuity should not exist.

8 (G/Y) 

 Ground

: Continuity should not exist.

PIIA5099E

Connector

Terminals 

(Wire color)

Condition

Signal

(Reference value)

(+)

(–)

B152

2 (P)

Ground

Seat mem-
ory switch 
1 or 2 op-
eration

PIIA5097E

PIIA4814E

Connector

Terminals 

(Wire color)

Condition

Signal

(Reference value)

(+)

(–)

M49

10 (B)

Ground

Seat mem-
ory switch 
1 or 2 op-
eration

PIIA5098E

PIIA4813E

 

 

 

 

 

 

 

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