Infiniti QX4 (R50). Manual — part 348
DIAGNOSTIC PROCEDURE 5
=NBEL0214S08
[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
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
AUTOMATIC DRIVE POSITIONER
Trouble Diagnoses (Cont’d)
EL-209
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.
SEL617WA
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-210
DIAGNOSTIC PROCEDURE 6
=NBEL0214S09
(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.
SEL620WA
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
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
AUTOMATIC DRIVE POSITIONER
Trouble Diagnoses (Cont’d)
EL-211
DIAGNOSTIC PROCEDURE 7
=NBEL0214S10
(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.
SEL622WA
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-212
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