INFINITI QX4 2001 Factory Service Manual

On Board DiagnosisNBEL0213
SEL354X
HOW TO PERFORM SELF-DIAGNOSISNBEL0213S01
SEL596W
*1: If no malfunction is indicated, self-diagnosis will end after the vehicle speed sensor diagnosis is performed.
*2: Diagnosis ends after self-diagnostic results have been indicated for 10 minutes if left unattended.
AUTOMATIC DRIVE POSITIONER
On Board Diagnosis
EL-196

MALFUNCTION CODE TABLE=NBEL0213S02In this mode, a malfunction code is indicated by the number of flashes from the automatic drive positioner
indicator lamps (indicator lamp 1, indicator lamp 2) as shown below.
SEL597W
Code
No.Detected
itemsDiagnostic procedureRefer-
ence
pageCode
No.Detected
itemsDiagnostic procedureRefer-
ence
page
1Seat
slidingPROCEDURE 2
(Sliding encoder check)
PROCEDURE 6
(Sliding motor check)EL-203
EL-2114Seat
lifting
rearPROCEDURE 5
[Lifting encoder (rear) check]
PROCEDURE 9
[Lifting motor (rear) check]EL-209
EL-214
2Seat
recliningPROCEDURE 3
(Reclining encoder check)
PROCEDURE 7
(Reclining motor check)EL-205
EL-2129Vehicle
speed
sensorPROCEDURE 12
(Vehicle speed sensor check)EL-217
3Seat
lifting
frontPROCEDURE 4
[Lifting encoder (front) check]
PROCEDURE 8
[Lifting motor (front) check]EL-207
EL-213
GI
MA
EM
LC
EC
FE
AT
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
IDX
AUTOMATIC DRIVE POSITIONER
On Board Diagnosis (Cont'd)
EL-197

Trouble DiagnosesNBEL0214WORK FLOWNBEL0214S01
SEL599W
*1 EL-196 *2 EL-197
AUTOMATIC DRIVE POSITIONER
Trouble Diagnoses
EL-198

PRELIMINARY CHECKNBEL0214S02
SEL600W
*1: After reconnecting battery cable, perform initialization proce-
dure A or B.
If initialization has not been performed, automatic drive positioner
will not operate.
PROCEDURE A
1) Insert key in the ignition key cylinder. (Ignition switch is in
ªOFFº position.)
2) Open,close,open driver side door. (Do not perform with
the door switch operation.)
3) End
PROCEDURE B
1) Drive the vehicle at more than 30 km/h (19 MPH).
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-199

2) End
After performing preliminary check, go to symptom chart
below.
Before starting trouble diagnoses below, perform preliminary
check, EL-199. Symptom numbers in the symptom chart cor-
respond with those of preliminary check.
SYMPTOM CHARTNBEL0214S03
PROCEDURE Diagnostic procedure
REFERENCE PAGE (EL- ) 202 203 205 207 209 211 212
SYMPTOM
DIAGNOSTIC PROCEDURE 1
(Power supply and ground circuit
for Driver's seat control unit)
DIAGNOSTIC PROCEDURE 2
(Sliding encoder check)
DIAGNOSTIC PROCEDURE 3
(Reclining encoder check)
DIAGNOSTIC PROCEDURE 4
[Lifting encoder (front) check]
DIAGNOSTIC PROCEDURE 5
[Lifting encoder (rear) check]
DIAGNOSTIC PROCEDURE 6
(Sliding motor check)
DIAGNOSTIC PROCEDURE 7
(Reclining motor check)
1 No seat system functions operate. X
2Some of the seat
system functions
do not operate
during automatic/
manual operation.SlidingX
RecliningX
Lifting (Front)
Lifting (Rear)
3No functions operate during auto-
matic operation, and some/all func-
tions do not during manual opera-
tion.
4Some of the seat
system functions
do not operate
during automatic
operation.Sliding X
Reclining X
Lifting (Front) X
Lifting (Rear) X
5No automatic operation functions
operate.
6Drive position cannot be retained in
the memory.
7Does not operate
during manual
operation. (Oper-
ates during auto-
matic operation.)Sliding
Reclining
Lifting (Front)
Lifting (Rear)
8Automatic operation cannot be can-
celed.
9 Memory indicator does not light up.
X : Applicable
AUTOMATIC DRIVE POSITIONER
Trouble Diagnoses (Cont'd)
EL-200

PROCEDURE Diagnostic procedure
REFERENCE PAGE (EL- ) 213 214 215 216 217 220 220
SYMPTOM
DIAGNOSTIC PROCEDURE 8
[Lifting motor (front) check]
DIAGNOSTIC PROCEDURE 9
[Lifting motor (rear) check]
DIAGNOSTIC PROCEDURE 10
(Power seat switch check)
DIAGNOSTIC PROCEDURE 11
(Cancel switch check)
DIAGNOSTIC PROCEDURE 12
(Key, park position, door switch
and vehicle speed sensor check)
DIAGNOSTIC PROCEDURE 13
(Seat memory switch check)
DIAGNOSTIC PROCEDURE 14
(Memory indicator check)
1 No seat system functions operate.
2Some of the seat
system functions
do not operate
during automatic/
manual operation.Sliding
Reclining
Lifting (Front) X
Lifting (Rear) X
3No functions operate during auto-
matic operation, and some/all func-
tions do not during manual opera-
tion.XX
(ACC, ON
START
signal)
4Some of the seat
system functions
do not operate
during automatic
operation.Sliding
Reclining
Lifting (Front)
Lifting (Rear)
5No automatic operation functions
operate.XX
6Drive position cannot be retained in
the memory.X
(IGN ON
signal)X
7Does not operate
during manual
operation. (Oper-
ates during auto-
matic operation.)Sliding X
Reclining X
Lifting (Front) X
Lifting (Rear) X
8Automatic operation cannot be can-
celed.X
9 Memory indicator does not light up.X
X : Applicable
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-201

SEL601W
DIAGNOSTIC PROCEDURE 1=NBEL0214S04(Power supply and ground circuit for driver's seat control unit)
Power Supply Circuit CheckNBEL0214S0401Check voltage between seat control unit LH terminal 1 and ground.
TerminalsIgnition switch position
OFF ACC ON START
1 - Ground Battery voltage
If NG, check the following.
I40A fusible link (letterf, located in the fuse and fusible link box)
ICircuit breaker
IHarness for open or short between circuit breaker and seat
control unit LH
SEL602W
Ground Circuit CheckNBEL0214S0402Check continuity between seat control unit LH terminal 33 and
ground.
Terminals Continuity
33 - Ground Yes
AUTOMATIC DRIVE POSITIONER
Trouble Diagnoses (Cont'd)
EL-202

DIAGNOSTIC PROCEDURE 2=NBEL0214S05(Sliding encoder check)
1 CHECK SLIDING ENCODER OUTPUT SIGNAL
Measure voltage between seat control unit LH terminal 18 and ground with CONSULT-II or oscilloscope when power seat
slide is operated.
SEL603W
OK or NG
OK©Sliding encoder is OK.
NG©GO TO 2.
2 CHECK SLIDING ENCODER INPUT SIGNAL
Check voltage between seat control unit LH terminal 17 and ground.
SEL604W
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-203

3 CHECK SLIDING ENCODER OPEN CIRCUIT
1. Disconnect seat control unit LH connector and sliding device LH connector.
2. Check harness continuity between seat control unit LH connector and sliding device LH connector.
SEL605WA
OK or NG
OK©GO TO 4.
NG©Repair harness.
4 CHECK SLIDING ENCODER SHORT CIRCUIT
Check harness continuity between seat control unit LH connector and ground.
SEL606W
OK or NG
OK©Replace sliding encoder.
NG©Repair harness.
AUTOMATIC DRIVE POSITIONER
Trouble Diagnoses (Cont'd)
EL-204

DIAGNOSTIC PROCEDURE 3=NBEL0214S06(Reclining encoder check)
1 CHECK RECLINING ENCODER OUTPUT SIGNAL
Measure voltage between seat control unit LH terminal 29 and ground with CONSULT-II or oscilloscope when power seat
reclining is operated.
SEL607W
OK or NG
OK©Reclining encoder is OK.
NG©GO TO 2.
2 CHECK RECLINING ENCODER INPUT SIGNAL
Check voltage between seat control unit LH terminal 17 and ground.
SEL608W
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-205