Infiniti Q45 (FY33). Manual — part 371
SEL548W
DIAGNOSTIC PROCEDURE 12
(Reclining motor check)
SEL975U
SEL976U
RECLINING MOTOR ACTIVE TEST
CONSULT-II
See “SEAT RECLINING” in ACTIVE TEST
mode.
Perform operation shown on display.
Reclining motor should operate.
Note: If CONSULT-II is not available,
start with diagnostic procedure
.
NG
E
OK
Reclining motor is OK.
CHECK OUTPUT SIGNAL TO RECLIN-
ING MOTOR.
Check voltage between LCU05 connector
terminals
q
2
or
q
9
and ground.
Refer to wiring diagram in EL-452.
OK
E
NG
Replace LCU05.
CHECK RECLINING MOTOR.
1. Disconnect reclining motor connector.
2. Apply 12V DC direct current to motor
and check operation.
OK
E
NG
Replace reclining motor.
Check harness for operation between
LCU05 and reclining motor.
Condition
of reclin-
ing switch
Terminals
Voltage
V
!
@
Forward
q
2
Ground
Approx.
12
Backward
q
9
Ground
Approx.
12
Terminals
Operation
!
@
q
2
q
9
Forward
q
9
q
2
Backward
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-475
SEL549W
DIAGNOSTIC PROCEDURE 13
[Lifting motor (Front) check]
SEL978U
SEL979U
LIFTING MOTOR (FRONT) ACTIVE
TEST
CONSULT-II
See “SEAT LIFTER FR” in ACTIVE TEST
mode.
Perform operation shown on display.
Lifting motor (front) should operate.
Note: If CONSULT-II is not available,
start with diagnostic procedure
.
NG
E
OK
Lifting motor (front) is OK.
CHECK OUTPUT SIGNAL TO LIFTING
MOTOR (FRONT).
Check voltage between LCU05 connector
terminals
q
11
or
q
10
and ground.
Refer to wiring diagram in EL-452.
OK
E
NG
Replace LCU05.
CHECK LIFTING MOTOR (FRONT).
1. Disconnect lifting device connector.
2. Apply 12V DC direct current to motor
and check operation.
OK
E
NG
Replace lifting motor
(front).
Check harness for operation between
LCU05 and lifting motor (front).
Condition
of lifting
switch
(front)
Terminals
Voltage
V
!
@
Up
q
11
Ground
Approx.
12
Down
q
10
Ground
Approx.
12
Terminals
Operation
!
@
q
11
q
10
Up
q
10
q
11
Down
AUTOMATIC DRIVE POSITIONER — IVMS
Trouble Diagnoses (Cont’d)
H
H
H
EL-476
SEL550W
DIAGNOSTIC PROCEDURE 14
[Lifting motor (Rear) check]
SEL002V
SEL003V
LIFTING MOTOR (REAR) ACTIVE TEST
CONSULT-II
See “SEAT LIFTER RR” in ACTIVE TEST
mode.
Perform operation shown on display.
Lifting motor (rear) should operate.
Note: If CONSULT-II is not available,
start with diagnostic procedure
.
NG
E
OK
Lifting motor (rear) is OK.
CHECK OUTPUT SIGNAL TO LIFTING
MOTOR (REAR).
Check voltage between LCU05 connector
terminals
q
6
or
q
4
and ground.
Refer to wiring diagram in EL-453.
OK
E
NG
Replace LCU05.
CHECK LIFTING MOTOR (REAR).
1. Disconnect lifting device connector.
2. Apply 12V DC direct current to motor
and check operation.
OK
E
NG
Replace lifting motor (rear).
Check harness for operation between
LCU05 and lifting motor (rear).
Condition
of lifting
switch
(rear)
Terminals
Voltage
V
!
@
Up
q
6
Ground
Approx.
12
Down
q
4
Ground
Approx.
12
Terminals
Operation
!
@
q
6
q
4
Up
q
4
q
6
Down
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-477
SEL004V
DIAGNOSTIC PROCEDURE 15
(Lifting limit switch check)
SEL005V
CHECK LIMIT SWITCH.
1. Disconnect lifting device connector.
2. Check continuity between lifting device
(limit switch) terminals.
Refer to wiring diagram in EL-452 or 453.
OK
E
NG
Replace limit switch.
CHECK GROUND CIRCUIT FOR LIMIT
SWITCH.
Check continuity between lifting device
terminal
q
14
(for limit switch front) or
q
15
(for
limit switch rear) and ground.
Continuity should exist.
OK
E
NG
Repair harness.
Check harness for open or short between
LCU05 and limit switch.
Terminals
Condition of
seat lifting
Continuity
Front
q
12
-
q
14
Fully up
No
Except the
above
Yes
q
3
-
q
14
Fully down
No
Except the
above
Yes
Rear
q
5
-
q
15
Fully up
No
Except the
above
Yes
q
13
-
q
15
Fully down
No
Except the
above
Yes
AUTOMATIC DRIVE POSITIONER — IVMS
Trouble Diagnoses (Cont’d)
H
H
EL-478
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