Infiniti I30 (A33). Manual — part 396

DIAGNOSTIC PROCEDURE 5

=NHEL0277S08

[Lifting encoder (rear) check]

1

CHECK LIFTING ENCODER (REAR) OUTPUT SIGNAL

Measure voltage between seat control unit LH terminal 30 and ground with CONSULT-II or oscilloscope when power seat
lifting (rear) is operated.

SEL615W

OK or NG

OK

©

Lifting encoder (rear) is OK.

NG

©

GO TO 2.

2

CHECK LIFTING ENCODER (REAR) INPUT SIGNAL

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

SEL616W

OK or NG

OK

©

GO TO 3.

NG

©

Replace seat control unit LH.

GI

MA

EM

LC

EC

FE

AT

AX

SU

BR

ST

RS

BT

HA

SC

IDX

AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses (Cont’d)

EL-253

3

CHECK LIFTING ENCODER (REAR) OPEN CIRCUIT

1. Disconnect seat control unit LH connector and rear lifting device LH connector.
2. Check harness continuity between seat control unit LH connector and rear lifting device LH connector.

SEL617W

OK or NG

OK

©

GO TO 4.

NG

©

Repair harness.

4

CHECK LIFTING ENCODER (REAR) SHORT CIRCUIT

Check harness continuity between seat control unit LH connector and ground.

SEL618W

OK or NG

OK

©

Replace lifting encoder (rear).

NG

©

Repair harness.

AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses (Cont’d)

EL-254

DIAGNOSTIC PROCEDURE 6

=NHEL0277S09

(Sliding motor check)

1

CHECK OUTPUT SIGNAL TO SLIDING MOTOR

Check voltage between seat control unit LH terminals 3 or 10 and ground.

SEL619W

OK or NG

OK

©

GO TO 2.

NG

©

Replace seat control unit LH.

2

CHECK SLIDING MOTOR

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

SEL620W

OK or NG

OK

©

Check harness for operation between seat control unit LH and sliding motor.

NG

©

Replace sliding motor.

GI

MA

EM

LC

EC

FE

AT

AX

SU

BR

ST

RS

BT

HA

SC

IDX

AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses (Cont’d)

EL-255

DIAGNOSTIC PROCEDURE 7

=NHEL0277S10

(Reclining motor check)

1

CHECK OUTPUT SIGNAL TO RECLINING MOTOR

Check voltage between seat control unit LH terminals 4 or 12 and ground.

SEL621W

OK or NG

OK

©

GO TO 2.

NG

©

Replace seat control unit LH.

2

CHECK RECLINING MOTOR

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

SEL622W

OK or NG

OK

©

Check harness for operation between seat control unit LH and reclining motor.

NG

©

Replace reclining motor.

AUTOMATIC DRIVE POSITIONER

Trouble Diagnoses (Cont’d)

EL-256