INFINITI QX4 2001 Factory Service Manual

3 CHECK RECLINING ENCODER OPEN CIRCUIT
1. Disconnect seat control unit LH connector and reclining device LH connector.
2. Check harness continuity between seat control unit LH connector and reclining LH connector.
SEL609WA
OK or NG
OK©GO TO 4.
NG©Repair harness.
4 CHECK RECLINING ENCODER SHORT CIRCUIT
Check harness continuity between seat control unit LH connector and ground.
SEL610W
OK or NG
OK©Replace reclining encoder.
NG©Repair harness.
AUTOMATIC DRIVE POSITIONER
Trouble Diagnoses (Cont'd)
EL-206

DIAGNOSTIC PROCEDURE 4=NBEL0214S07[Lifting encoder (front) check]
1 CHECK LIFTING ENCODER (FRONT) OUTPUT SIGNAL
Measure voltage between seat control unit LH terminal 19 and ground with CONSULT-II or oscilloscope when power seat
lifting (front) is operated.
SEL611W
OK or NG
OK©Lifting encoder (front) is OK.
NG©GO TO 2.
2 CHECK LIFTING ENCODER (FRONT) INPUT SIGNAL
Check voltage between seat control unit LH terminal 17 and ground.
SEL612W
OK or NG
OK©GO TO 3.
NG©Replace seat control unit LH.
GI
MA
EM
LC
EC
FE
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TF
PD
AX
SU
BR
ST
RS
BT
HA
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IDX
AUTOMATIC DRIVE POSITIONER
Trouble Diagnoses (Cont'd)
EL-207

3 CHECK LIFTING ENCODER (FRONT) OPEN CIRCUIT
1. Disconnect seat control unit LH connector and front lifting device LH connector.
2. Check harness continuity between seat control unit LH connector and front lifting device LH connector.
SEL613WA
OK or NG
OK©GO TO 4.
NG©Repair harness.
4 CHECK LIFTING ENCODER (FRONT) SHORT CIRCUIT
Check harness continuity between seat control unit LH connector and ground.
SEL614W
OK or NG
OK©Replace lifting encoder (front).
NG©Repair harness.
AUTOMATIC DRIVE POSITIONER
Trouble Diagnoses (Cont'd)
EL-208

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

DIAGNOSTIC PROCEDURE 8=NBEL0214S11[Lifting motor (front) check]
1 CHECK OUTPUT SIGNAL TO LIFTING MOTOR (FRONT)
Check voltage between seat control unit LH terminals 5 or 13 and ground.
SEL623W
OK or NG
OK©GO TO 2.
NG©Replace seat control unit LH.
2 CHECK LIFTING MOTOR (FRONT)
1. Disconnect front lifting device LH connector.
2. Apply 12V DC direct current to motor and check operation.
SEL624WA
OK or NG
OK©Check harness for operation between seat control unit LH and lifting motor (front).
NG©Replace lifting motor (front).
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-213

DIAGNOSTIC PROCEDURE 9=NBEL0214S12[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.
SEL626WA
OK or NG
OK©Check harness for operation between seat control unit LH and lifting motor (rear).
NG©Replace lifting motor (rear).
AUTOMATIC DRIVE POSITIONER
Trouble Diagnoses (Cont'd)
EL-214

DIAGNOSTIC PROCEDURE 10=NBEL0214S13(Power seat switch check)
1 CHECK POWER SEAT SWITCH
1. Disconnect power seat switch LH connector.
2. Check continuity between power seat switch terminals.
SEL569X
OK or NG
OK©Check the following.
IGround circuit for power seat switch
IHarness for open or short between seat control unit LH and power seat switch
NG©Replace power seat switch.
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-215