Infiniti M45 (Y34). Manual - part 758

 

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Infiniti M45 (Y34). Manual - part 758

 

 

AUTOMATIC DRIVE POSITIONER

SE-53

C

D

E

F

G

H

J

K

L

M

A

B

SE

Symptom Chart

AIS001JV

Symptom

Diagnoses / service procedure

Refer to 

page

A part of seat system does not operate (both automati-
cally and manually).

1. Seat sliding motor circuit inspection 

SE-55

2. Seat reclining motor circuit inspection 

SE-56

3. Front end seat lifter motor circuit inspection

SE-66

4. Rear end seat lifter motor circuit inspection

SE-67

5. If the above systems are normal, replace the BCM

—

A part of steering wheel system does not operate (both  
automatically and manually).

1.Steering wheel telescopic motor circuit inspection

SE-60

2. Steering wheel tilt motor circuit inspection 

SE-62

3. If the above systems are normal, replace the BCM

—

 Door mirrors cannot be actuated by both automatic and 
manual.

1. Door mirror remote control switch (changeover switch) 
circuit inspection

GW-107

2. Door mirror remote control switch (mirror switch) sys-
tem inspection

GW-110

3. If the above systems are normal, replace the BCM.

–

A part of seat system does not operate (only automatic 
operation).

1. Seat sliding sensor circuit inspection

SE-64

2. Seat reclining sensor circuit inspection

SE-65

3. Front end seat lifter sensor circuit inspection

SE-66

4. Rear end seat lifter sensor circuit inspection

SE-67

5. If the above systems are normal, replace the driver 
seat control unit

–

Door mirrors cannot be actuated  in automatic mode.

1. R-position signal circuit inspection

GW-109

2. Mirror sensor circuit inspection1

GW-113

3. If the above systems are normal, replace the door mir-
ror control unit.

–

All the automatic operations do not operate.

1. Detention switch circuit inspection

SE-68

2. Telescopic sensor circuit inspection

SE-69

3. Tilt sensor circuit inspection

SE-70

4. Vehicle speed signal circuit inspection 

SE-74

5. If all the above systems are normal, replace the BCM

–

Seat or steering wheel memory does not work

1. Seat memory switch circuit inspection

SE-76

2. If the above systems are normal, replace the BCM.

–

Only manual operation does not operate.

1. Seat sliding switch circuit inspection

SE-78

2. Seat reclining switch circuit inspection

SE-80

3. Front end seat lifter switch circuit inspection

SE-82

4. Rear end seat lifter switch circuit inspection

SE-84

5. Steering wheel telescoping switch circuit inspection

SE-86

6. Steering wheel tilt switch circuit inspection

SE-87

7. Door mirror remote control switch (mirror switch) cir-
cuit inspection

GW-110

8. If all the above systems are normal, replace the driver 
seat control unit for the seat system, the BCM for the 
steering wheel system

–

Seat memory indicator lamps 1 and 2 do not illuminate.

1. Seat memory indicator lamp circuit inspection

SE-89

2. If all the above systems are normal, replace the BCM.

–

SE-54

AUTOMATIC DRIVE POSITIONER

The entry / exiting does not operated when door is 
opened and closed.
(The entry / exiting operates with key switch)

1. Driver door switch circuit inspection

SE-73

2. If all the above systems are normal, replace the BCM.

–

Auto driving position system self-diagnosis does not 
work.(Without CONSULT-ll)

1. Detente switch circuit inspection

SE-68

2. Key switch and key lock solenoid circuit inspection 

SE-71

3. Seat memory switch circuit inspection

SE-76

4. Seat memory indicator lamp circuit inspection

SE-89

5. Vehicle speed signal circuit inspection 

SE-74

6. If all the above systems are normal, retry the self-diag-
nosis. If the self-diagnosis are still disable, check the 
driver seat control unit connector and terminals for loose-
ness and damage.

–

Lumber support motor does not operated.

1. Lumber support motor circuit inspection

SE-91

Symptom

Diagnoses / service procedure

Refer to 

page

AUTOMATIC DRIVE POSITIONER

SE-55

C

D

E

F

G

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K

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M

A

B

SE

Seat Sliding Motor Circuit  Inspection

AIS001JW

1. 

CHECK SEAT SLIDING MECHANISM

Check the following.
1.

Operation malfunction caused by sliding rail deformation or pinched harness or other foreign materials

2.

Operation malfunction caused by foreign materials adhered to the sliding motor or sliding rail connector
rod

3.

Operation malfunction and interference with other parts by poor installation.

OK or NG

OK

>> GO TO 2.

NG

>> Repair the malfunction part and check again.

2. 

CHECK FUNCTION

With CONSULT-II

Check operation with “SEAT SLIDE” in ACTIVE TEST. 

Without CONSULT-II

Perform the self-diagnosis. Refer to 

SE-51, "ON BOARD DIAGNOSIS FOR AUTOMATIC DRIVE POSI-

TIONER"

 .

OK or NG

OK

>> System is OK.

NG

>> GO TO 3.

3. 

CHECK HARNESS CONTINUITY

1.

Turn ignition switch OFF.

2.

Disconnect driver seat control unit connector and sliding motor connector.

3.

Check continuity between driver seat control unit connector
B142 terminals 1 (W), 8 (BR) and sliding motor connector B146
terminals 1 (W), 8 (BR).

4.

Check continuity between driver seat control unit connector
B142 terminals 1, 8 and body ground.

OK or NG

OK

>> GO TO 4.

NG

>> Repair or replace harness between driver seat control unit and sliding motor.

Test item

Description

SEAT SLIDE

The sliding motor is activated by receiving the drive signal.

PIIA0265E

1 (W) – 1 (W)

: Continuity should exist.

8 (BR) – 8 (BR)

: Continuity should exist.

1 (W) – Ground

: Continuity should not exist.

8 (BR) – Ground

: Continuity should not exist.

PIIA2921E

SE-56

AUTOMATIC DRIVE POSITIONER

4. 

CHECK DRIVER SEAT CONTROL UNIT OUTPUT SIGNAL

1.

Connect the driver seat control unit connector and sliding motor connector.

2.

Check voltage between the driver seat control unit connector.

OK or NG

OK

>> Replace sliding motor.

NG

>> Replace driver seat control unit.

Seat Reclining Motor Circuit Inspection

AIS001JX

1. 

CHECK SEAT RECLINING MECHANISM

Check following.

1.

Operation malfunction caused by an interference with the center pillar or center console.

2.

Operation malfunction and interference with other parts by poor installation.

OK or NG

OK

>> GO TO 2.

NG

>> Repair the malfunction part and check again.

2. 

CHECK FUNCTIONAL

With CONSULT-II

Check operation with “SEAT RECLINING” in ACTIVE TEST. 

Without CONSULT-II

Perform the self-diagnosis. Refer to 

SE-51, "ON BOARD DIAGNOSIS FOR AUTOMATIC DRIVE POSI-

TIONER"

 .

OK or NG

OK

>> System is OK.

NG

>> GO TO 3.

Connector

Terminals 

(Wire color)

Condition

Voltage (V) 

(Approx)

(+)

(–)

B142

1 (W)

8 (BR)

Sliding switch
(FR operation)

Battery voltage

Sliding switch OFF

0

8 (BR)

1 (W)

Sliding switch
(RR operation)

Battery voltage

Sliding switch OFF

0

PIIA2922E

Test item

Description

SEAT
RECLINING

The reclining motor is activated by receiving the drive signal.

PIIA0268E

 

 

 

 

 

 

 

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