Infiniti I35 (A33). Manual — part 411

DIAGNOSTIC PROCEDURE 9

=NHEL0277S12

[Lifting motor (rear) check]

1

CHECK OUTPUT SIGNAL TO LIFTING MOTOR (REAR)

Check voltage between seat control unit LH terminals 6 or 7 and ground.

SEL625W

OK or NG

OK

©

GO TO 2.

NG

©

Replace seat control unit LH.

2

CHECK LIFTING MOTOR (REAR)

1. Disconnect rear lifting device LH connector.
2. Apply 12V DC direct current to motor and check operation.

SEL626W

OK or NG

OK

©

Check harness for operation between seat control unit LH and lifting motor (rear).

NG

©

Replace lifting motor (rear).

GI

MA

EM

LC

EC

FE

AT

AX

SU

BR

ST

RS

BT

HA

SC

IDX

AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses (Cont’d)

EL-245

DIAGNOSTIC PROCEDURE 10

=NHEL0277S13

(Power seat switch check)

1

CHECK POWER SEAT SWITCH

1. Disconnect power seat switch LH connector.
2. Check continuity between power seat switch terminals (B515).

SEL016Y

OK or NG

OK

©

Check the following.

I

Ground circuit for power seat switch

I

Harness for open or short between seat control unit LH and power seat switch

NG

©

Replace power seat switch.

DIAGNOSTIC PROCEDURE 11

NHEL0277S14

(Cancel switch check)

1

CHECK CANCEL SWITCH

1. Disconnect memory seat cancel switch connector.
2. Check continuity between memory seat cancel switch terminals.

SEL628WD

OK or NG

OK

©

Check the following.

I

Ground circuit for cancel switch

I

Harness for open or short between seat control unit LH and memory seat cancel
switch

NG

©

Replace memory seat cancel switch.

AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses (Cont’d)

EL-246

DIAGNOSTIC PROCEDURE 12

=NHEL0277S15

(Key, detention, door switch and vehicle speed sensor check)

1

CHECK KEY SWITCH INPUT SIGNAL

Check voltage between seat control unit LH terminal 2 and ground.

SEL629W

OK or NG

OK

©

GO TO 2.

NG

©

Check the following.

I

10A fuse [No. 13, located in fuse block (J/B)]

I

Key switch

I

Harness for open or short between key switch and fuse

I

Harness for open or short between seat control unit LH and key switch

2

CHECK IGNITION SWITCH INPUT SIGNAL (ON AND START)

Check voltage between seat control unit LH terminals and ground.

SEL630W

OK or NG

OK

©

GO TO 3.

NG

©

Check the following.

I

10A fuse [No. 10, located in fuse block (J/B)]

I

10A fuse [No. 21, located in fuse block (J/B)]

I

Harness for open or short between seat control unit LH and fuse

GI

MA

EM

LC

EC

FE

AT

AX

SU

BR

ST

RS

BT

HA

SC

IDX

AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses (Cont’d)

EL-247

3

CHECK PARK POSITION SWITCH INPUT SIGNAL

Check voltage between seat control unit LH terminal 21 and ground.

SEL631W

OK or NG

OK

©

GO TO 4.

NG

©

Check the following.

I

Park position switch

I

Park position switch ground circuit

I

Harness for open or short between seat control unit LH and park position switch

4

CHECK DRIVER DOOR SWITCH INPUT SIGNAL

Check voltage between seat control unit LH terminal 9 and ground.

SEL632W

OK or NG

OK

©

GO TO 5.

NG

©

Check the following.

I

Driver door switch

I

Driver door switch ground circuit

I

Harness for open or short between seat control unit LH and driver door switch

5

CHECK VEHICLE SPEED SENSOR

Does speedometer operate normally?

OK or NG

OK

©

GO TO 6.

NG

©

Check speedometer and vehicle speed sensor circuit. Refer to EL-134.

AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses (Cont’d)

EL-248