Infiniti QX4. Electrical System (2003 year). Instruction - part 15

MEMORY AUTOMATIC SET

=NBEL0365S05

Two drive positions can be retained in the memory. Press memory switch to set driver’s seat to preset posi-
tion.

SEL592W

NOTE:

쐌

When memory switch for which driver’s seat positions are already retained in memory is pressed, new seat
positions will be retained in memory in place of the previously set positions.

쐌

Drive position is erased from the memory when battery cable is disconnected more than 30 seconds. After
connecting battery cable, perform initialization procedures.

SEL593W

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AUTOMATIC DRIVE POSITIONER

System Description (Cont’d)

EL-229

NOTE:
1) Do not keep cancel switch pressed as it will not operate.
2) Automatic exiting setting will be performed.
3) The driver’s seat position (see the following Table) operates in the order of priority.

The order of priority

Operated portion

1

Seat sliding

2

Seat reclining

3

Seat front lifting

4

Seat rear lifting

AUTOMATIC EXITING SETTING

NBEL0365S06

“Exiting” positions:

Driver’s seat ... Slides about 40 mm (1.57 in) rear from normal sitting position.

SEL594W

AUTOMATIC SET RETURN

NBEL0365S07

With driver’s seat set to the “exiting” position, operating one of the following procedures moves it to the posi-
tion previously retained in memory.

SEL595W

AUTOMATIC DRIVE POSITIONER

System Description (Cont’d)

EL-230

Schematic

NBEL0366

MEL327Q

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AUTOMATIC DRIVE POSITIONER

Schematic

EL-231

Wiring Diagram — AUT/DP —

NBEL0367

MEL616P

AUTOMATIC DRIVE POSITIONER

Wiring Diagram — AUT/DP —

EL-232

MEL617P

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AUTOMATIC DRIVE POSITIONER

Wiring Diagram — AUT/DP — (Cont’d)

EL-233

MEL401R

AUTOMATIC DRIVE POSITIONER

Wiring Diagram — AUT/DP — (Cont’d)

EL-234

MEL186M

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AUTOMATIC DRIVE POSITIONER

Wiring Diagram — AUT/DP — (Cont’d)

EL-235

MEL187M

AUTOMATIC DRIVE POSITIONER

Wiring Diagram — AUT/DP — (Cont’d)

EL-236

On Board Diagnosis

NBEL0368

SEL354X

HOW TO PERFORM SELF-DIAGNOSIS

NBEL0368S01

SEL596W

*1: If no malfunction is indicated, self-diagnosis will end after the vehicle speed sensor diagnosis is performed.
*2: Diagnosis ends after self-diagnostic results have been indicated for 10 minutes if left unattended.

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AUTOMATIC DRIVE POSITIONER

On Board Diagnosis

EL-237

MALFUNCTION CODE TABLE

=NBEL0368S02

In this mode, a malfunction code is indicated by the number of flashes from the automatic drive positioner
indicator lamps (indicator lamp 1, indicator lamp 2) as shown below.

SEL597WA

Code

No.

Detected

items

Diagnostic procedure

Refer-

ence
page

Code

No.

Detected

items

Diagnostic procedure

Refer-

ence
page

1

Seat

sliding

PROCEDURE 2

(Sliding encoder check)

PROCEDURE 6

(Sliding motor check)

EL-244
EL-252

4

Seat

lifting

rear

PROCEDURE 5

[Lifting encoder (rear) check]

PROCEDURE 9

[Lifting motor (rear) check]

EL-250
EL-255

2

Seat

reclining

PROCEDURE 3

(Reclining encoder check)

PROCEDURE 7

(Reclining motor check)

EL-246
EL-253

9

Vehicle

speed

sensor

PROCEDURE 12

(Vehicle speed sensor check)

EL-257

3

Seat

lifting

front

PROCEDURE 4

[Lifting encoder (front) check]

PROCEDURE 8

[Lifting motor (front) check]

EL-248
EL-254

AUTOMATIC DRIVE POSITIONER

On Board Diagnosis (Cont’d)

EL-238

Trouble Diagnoses

NBEL0369

WORK FLOW

NBEL0369S01

SEL599W

*1

EL-237

*2

EL-238

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AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses

EL-239

PRELIMINARY CHECK

NBEL0369S02

SEL600W

*1: After reconnecting battery cable, perform initialization proce-
dure A or B.
If initialization has not been performed, automatic drive positioner
will not operate.
PROCEDURE A
1)

Insert key in the ignition key cylinder. (Ignition switch is in
“OFF” position.)

2)

Open

,

close

,

open driver side door. (Do not perform with

the door switch operation.)

3)

End

PROCEDURE B
1)

Drive the vehicle at more than 30 km/h (19 MPH).

AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses (Cont’d)

EL-240

2)

End

After performing preliminary check, go to symptom chart
below.

Before starting trouble diagnoses below, perform preliminary
check, EL-240. Symptom numbers in the symptom chart cor-
respond with those of preliminary check.

SYMPTOM CHART

NBEL0369S03

PROCEDURE

Diagnostic procedure

REFERENCE PAGE (EL-

)

243

244

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248

250

252

253

SYMPTOM

DIAGNOSTIC

PROCEDURE

1

(Power

supply

and

ground

circuit

for

Driver

’s

seat

control

unit)

DIAGNOSTIC

PROCEDURE

2

(Sliding

encoder

check)

DIAGNOSTIC

PROCEDURE

3

(Reclining

encoder

check)

DIAGNOSTIC

PROCEDURE

4

[Lifting

encoder

(front)

check]

DIAGNOSTIC

PROCEDURE

5

[Lifting

encoder

(rear)

check]

DIAGNOSTIC

PROCEDURE

6

(Sliding

motor

check)

DIAGNOSTIC

PROCEDURE

7

(Reclining

motor

check)

1

No seat system functions operate.

X

2

Some of the seat
system functions
do not operate
during automatic/
instruction opera-
tion.

Sliding

X

Reclining

X

Lifting (Front)

Lifting (Rear)

3

No functions operate during auto-
matic operation, and some/all func-
tions do not during instruction opera-
tion.

4

Some of the seat
system functions
do not operate
during automatic
operation.

Sliding

X

Reclining

X

Lifting (Front)

X

Lifting (Rear)

X

5

No automatic operation functions
operate.

6

Drive position cannot be retained
in the memory.

7

Does not operate
during instruction
operation. (Oper-
ates during auto-
matic operation.)

Sliding

Reclining

Lifting (Front)

Lifting (Rear)

8

Automatic operation cannot be
canceled.

9

Memory indicator does not light up.

X : Applicable

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AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses (Cont’d)

EL-241

PROCEDURE

Diagnostic procedure

REFERENCE PAGE (EL-

)

254

255

256

256

257

259

260

SYMPTOM

DIAGNOSTIC

PROCEDURE

8

[Lifting

motor

(front)

check]

DIAGNOSTIC

PROCEDURE

9

[Lifting

motor

(rear)

check]

DIAGNOSTIC

PROCEDURE

10

(Power

seat

switch

check)

DIAGNOSTIC

PROCEDURE

1

1

(Cancel

switch

check)

DIAGNOSTIC

PROCEDURE

12

(Key

,

park

position,

door

switch

and

vehicle

speed

sensor

check)

DIAGNOSTIC

PROCEDURE

13

(Seat

memory

switch

check)

DIAGNOSTIC

PROCEDURE

14

(Memory

indicator

check)

1

No seat system functions operate.

2

Some of the seat
system functions
do not operate
during automatic/
instruction opera-
tion.

Sliding

Reclining

Lifting (Front)

X

Lifting (Rear)

X

3

No functions operate during auto-
matic operation, and some/all func-
tions do not during instruction opera-
tion.

X

X

(ACC, ON

START

signal)

4

Some of the seat
system functions
do not operate
during automatic
operation.

Sliding

Reclining

Lifting (Front)

Lifting (Rear)

5

No automatic operation functions
operate.

X

X

6

Drive position cannot be retained
in the memory.

X

(IGN ON

signal)

X

7

Does not operate
during instruction
operation. (Oper-
ates during auto-
matic operation.)

Sliding

X

Reclining

X

Lifting (Front)

X

Lifting (Rear)

X

8

Automatic operation cannot be
canceled.

X

9

Memory indicator does not light up.

X

X : Applicable

AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses (Cont’d)

EL-242

SEL601W

DIAGNOSTIC PROCEDURE 1

=NBEL0369S04

(Power supply and ground circuit for driver’s seat control unit)

Power Supply Circuit Check

NBEL0369S0401

Check voltage between seat control unit LH terminal 1 and ground.

Terminals

Ignition switch position

OFF

ACC

ON

START

1 - Ground

Battery voltage

If NG, check the following.

쐌

40A fusible link (letter f, located in the fuse and fusible link box)

쐌

Circuit breaker

쐌

Harness for open or short between circuit breaker and seat
control unit LH

SEL602W

Ground Circuit Check

NBEL0369S0402

Check continuity between seat control unit LH terminal 33 and
ground.

Terminals

Continuity

33 - Ground

Yes

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AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses (Cont’d)

EL-243

DIAGNOSTIC PROCEDURE 2

=NBEL0369S05

(Sliding encoder check)

1

CHECK SLIDING ENCODER OUTPUT SIGNAL

Measure voltage between seat control unit LH terminal 18 and ground with CONSULT-II or oscilloscope when power seat
slide is operated.

SEL603W

OK or NG

OK

䊳

Sliding encoder is OK.

NG

䊳

GO TO 2.

2

CHECK SLIDING ENCODER INPUT SIGNAL

Check voltage between seat control unit LH terminal 17 and ground.

SEL604W

OK or NG

OK

䊳

GO TO 3.

NG

䊳

Replace seat control unit LH.

AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses (Cont’d)

EL-244