Infiniti Q45 (FY33). Manual - part 370

SEL962U

DIAGNOSTIC PROCEDURE 8
[Lifting sensor (rear) check]

SEL963U

SEL964U

CHECK LIFTING SENSOR (REAR)
INPUT SIGNAL.
Measure voltage between LCU05 terminal

q

31

and ground with oscilloscope when

power seat lifting (rear) is operated.

Refer to wiring diagram in EL-453.

NG

E

OK

Lifting sensor (rear) is OK.

CHECK LIFTING SENSOR (REAR)
OPEN CIRCUIT.
1. Disconnect LCU05 connector and lifting

device connector.

2. Check harness continuity between

LCU05 connector and lifting device con-
nector.

OK

E

NG

Repair harness.

CHECK LIFTING SENSOR (REAR)
SHORT CIRCUIT.
Check harness continuity between LCU05
connector and ground.

OK

E

NG

Repair harness.

Replace lifting sensor (rear).

Terminals

Continuity

LCU05

Lifting device

(Sliding sensor)

q

31

q

31

Yes

q

32

q

33

Terminals

Continuity

q

31

- Ground

No

q

32

- Ground

GI

MA

EM

LC

EC

FE

AT

PD

FA

RA

BR

ST

RS

BT

HA

IDX

AUTOMATIC DRIVE POSITIONER — IVMS

Trouble Diagnoses (Cont’d)

H

H

H

EL-471

SEL545W

DIAGNOSTIC PROCEDURE 9
(Tilt motor check)

SEL966U

SEL967U

TILT MOTOR ACTIVE TEST

CONSULT-II

See “TILT MOTOR” in ACTIVE TEST
mode.
Perform operation shown on display.
Tilt motor should operate.
Note: If CONSULT-II is not available,

start with diagnostic procedure

.

NG

E

OK

Tilt motor is OK.

CHECK OUTPUT SIGNAL TO TILT
MOTOR.
Check voltage between BCM connector
terminals

102

or

103

and ground.

Refer to wiring diagram in EL-450.

OK

E

NG

Replace BCM.

CHECK TILT MOTOR.
1. Disconnect tilt motor connector.
2. Apply 12V DC direct current to motor

and check operation.

OK

E

NG

Replace tilt motor.

Check harness for operation between
BCM and tilt motor.

Condition

of tilt

switch

Terminals

Voltage

V

!

@

Up

103

Ground

Approx.

12

Down

102

Ground

Approx.

12

Terminals

Operation

!

@

q

1

q

2

Up

q

2

q

1

Down

AUTOMATIC DRIVE POSITIONER — IVMS

Trouble Diagnoses (Cont’d)

H

H

H

EL-472

SEL546W

DIAGNOSTIC PROCEDURE 10
(Telescopic motor check)

SEL969U

SEL970U

TELESCOPIC MOTOR ACTIVE TEST

CONSULT-II

See “TELESCO MOTOR” in ACTIVE
TEST mode.
Perform operation shown on display.
Telescopic motor should operate.
Note: If CONSULT-II is not available,

start with diagnostic procedure

.

NG

E

OK

Telescopic motor is OK.

CHECK OUTPUT SIGNAL TO TELE-
SCOPIC MOTOR.
Check voltage between BCM connector
terminals

101

or

107

and ground.

Refer to wiring diagram in EL-450.

OK

E

NG

Replace BCM.

CHECK TELESCOPIC MOTOR.
1. Disconnect telescopic motor connector.
2. Apply 12V DC direct current to motor

and check operation.

OK

E

NG

Replace telescopic motor.

Check harness for operation between
BCM and telescopic motor.

Condition

of tele-

scopic
switch

Terminals

Voltage

V

!

@

Forward

101

Ground

Approx.

12

Backward

107

Ground

Approx.

12

Terminals

Operation

!

@

q

1

q

2

Forward

q

2

q

1

Upward

GI

MA

EM

LC

EC

FE

AT

PD

FA

RA

BR

ST

RS

BT

HA

IDX

AUTOMATIC DRIVE POSITIONER — IVMS

Trouble Diagnoses (Cont’d)

H

H

H

EL-473

SEL547W

DIAGNOSTIC PROCEDURE 11
(Sliding motor check)

SEL972U

SEL973U

SLIDING SLIDE ACTIVE TEST

CONSULT-II

See “SEAT SLIDE” in ACTIVE TEST
mode.
Perform operation shown on display.
Sliding motor should operate.
Note: If CONSULT-II is not available,

start with diagnostic procedure

.

NG

E

OK

Sliding motor is OK.

CHECK OUTPUT SIGNAL TO SLIDING
MOTOR.
Check voltage between LCU05 connector
terminals

q

1

or

q

8

and ground.

Refer to wiring diagram in EL-452.

OK

E

NG

Replace LCU05.

CHECK SLIDING MOTOR.
1. Disconnect sliding motor connector.
2. Apply 12V DC direct current to motor

and check operation.

OK

E

NG

Replace sliding motor.

Check harness for operation between
LCU05 and sliding motor.

Condition

of sliding

switch

Terminals

Voltage

V

!

@

Forward

q

1

Ground

Approx.

12

Backward

q

8

Ground

Approx.

12

Terminals

Operation

!

@

q

1

q

8

Forward

q

8

q

1

Backward

AUTOMATIC DRIVE POSITIONER — IVMS

Trouble Diagnoses (Cont’d)

H

H

H

EL-474