Infiniti F50. Manual - part 773

 

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Infiniti F50. Manual - part 773

 

 

AUTOMATIC DRIVE POSITIONER

SE-83

C

D

E

F

G

H

J

K

L

M

A

B

SE

3. 

CHECK HARNESS CONTINUITY

1.

Disconnect driver seat control unit connector and power seat switch (driver side) connector.

2.

Check continuity between driver seat control unit connector
B143 terminals 19 (L/R), 25 (OR/B) and driver seat switch con-
nector B144 terminals 19 (L/R), 25 (OR/B).

3.

Check continuity between driver seat control unit connector
B143 terminals 19 (L/R), 25 (OR/B) and ground 

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between driver seat control unit and power seat switch (driver side).

4. 

CHECK FRONT END LIFTING SWITCH

Check continuity between driver seat control unit.

OK or NG

OK

>> GO TO 5.

NG

>> Replace power seat switch (driver side).

5. 

CHECK POWER SEAT SWITCH GROUND CIRCUIT

Check continuity between power seat switch connector B144
terminal 15 (B) and ground.

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Repair or replace harness between power seat switch (driver side) and ground.

19 (L/R) – 19 (L/R)

: Continuity should exist.

25 (OR/B) – 25 (OR/B)

: Continuity should exist.

19 (L/R) – Ground

: Continuity should not exist.

25 (OR/B) – Ground

: Continuity should not exist.

PIIA4354E

Connector

Terminals 

Condition

Continuity

(+)

(–)

B144

19

15

Front lifting switch ON (UP 
operation).

Yes

Front lifting switch OFF.

No

25

Front lifting switch ON
(DOWN operation).

Yes

Front lifting switch OFF.

No

PIIA4382E

15 (B) – Ground:

: Continuity should exist.

PIIA3375E

SE-84

AUTOMATIC DRIVE POSITIONER

Rear Lifting Switch Circuit Inspection

EIS00427

1. 

CHECK FUNCTION

With CONSULT-II

With "LIFT RR SW-UP, LIFT RR SW-DN" on the DATA MONITOR,
operate the rear lifting switch to check ON/OFF operation.

Without CONSULT-II

Carry out "SWITCH MONITOR" in the self-diagnosis function, and operate the rear lifting switch to check.
Refer to 

SE-50

 .

OK or NG

OK

>> Replace the driver seat control unit.

NG

>> GO TO 2.

2. 

CHECK REAR LIFTING SWITCH INPUT/OUTPUT

1.

Turn ignition switch turn OFF.

2.

Check voltage between driver seat control unit connector and
ground.

OK or NG

OK

>> System is OK.

NG

>> GO TO 3.

Monitor item [OPERATION or 

UNIT]

Contents

LIFT RR SW–UP

"ON/OFF"

Operation (ON)/open (OFF) status judged 
from the RR lifter switch (UP) signal is dis-
played.

LIFT RR SW–DN

"ON/OFF"

Operation (ON)/open (OFF) status judged 
from the RR lifter switch (DOWN) signal is 
displayed.

PIIA0323E

Connector

Terminals

 (Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

B143

26 (P/B)

Ground

Rear lifting switch ON(UP 
operation).

0

Rear lifting switch OFF.

5

27 (B/Y)

Rear lifting switch ON
(DOWN operation).

0

Rear lifting switch OFF.

5

PIIA3303E

AUTOMATIC DRIVE POSITIONER

SE-85

C

D

E

F

G

H

J

K

L

M

A

B

SE

3. 

CHECK HARNESS CONTINUITY

1.

Disconnect driver seat control unit connector and driver power seat switch connector.

2.

Check continuity between driver seat control unit connector
B143 terminals 26 (P/B), 27 (B/Y) and power seat switch (driver
side) connector B144 terminals 26 (P/B), 27 (B/Y). 

3.

Check continuity between driver seat control unit connector
B143 terminals 26 (P/B), 27 (B/Y) and ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between driver seat control unit and driver power seat switch (driver

side).

4. 

CHECK REAR LIFTING SWITCH

Check continuity between driver seat control unit.

OK or NG

OK

>> GO TO 5.

NG

>> Replace power seat switch (driver side).

5. 

CHECK POWER SEAT SWITCH GROUND CIRCUIT

Check continuity between power seat switch connector B144 termi-
nal 15 (B) and ground.

OK or NG

OK

>> Check the condition of the harness and connector.

NG

>> Repair or replace harness between power seat switch (driver side) and ground.

26 (P/B) – 26 (P/B)

: Continuity should exist.

27 (B/Y) – 27 (P/Y)

: Continuity should exist.

26 (P/B) – Ground

: Continuity should not exist.

27 (B/Y) – Ground

: Continuity should not exist.

PIIA4352E

Connector

Terminals

 (Wire color)

Condition

Continuity

(+)

(–)

B144

26

15

Rear lifting switch ON(UP 
operation).

Yes

Rear lifting switch OFF.

No

27

Rear lifting switch ON
(DOWN operation).

Yes

Rear lifting switch OFF.

No

PIIA4383E

15 (B) – Ground

: Continuity should exist.

PIIA3375E

SE-86

AUTOMATIC DRIVE POSITIONER

Steering Wheel Telescopic Switch Inspection

EIS00428

1. 

CHECK FUNCTION

With CONSULT-II

With "TELESCO SW–FR, TELESCO SWRR"RR" on the DATA
MONITOR, operate the ADP steering switch to check ON/OFF oper-
ation.

Without CONSULT-II

Carry out "SWITCH MONITOR" in the self-diagnosis function, and operate the ADP steering switch to check.
Refer to 

SE-50

 .

OK or NG

OK

>> System is OK.

NG

>> GO TO 2.

2. 

CHECK TELESCOPIC SWITCH INPUT/OUTPUT

1.

Turn ignition switch OFF.

2.

Check voltage between BCM connector and ground.

OK or NG

OK

>> System is OK.

NG

>> GO TO 3.

Monitor item [OPERATION or 

UNIT]

Contents

TELESCO SW–FR

"ON/OFF"

Operation (ON)/open (OFF) status 
judged from the telescoping switch (FR) 
signal is displayed.

TELESCO SW–RR

"ON/OFF"

Operation (ON)/open (OFF) status 
judged from the telescoping switch (RR) 
signal is displayed.

PIIA0315E

Connector

Terminals

 (Wire color)

Condition

Voltage (V) 

(Approx.)

(+)

(–)

M4

22 (R)

Ground

Telescopic switch ON 
(forward operation).

0

Telescopic switch OFF.

5

26 (GY/R)

Telescopic switch ON 
(backward operation).

0

Telescopic switch OFF.

5

PIIA3305E

 

 

 

 

 

 

 

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