1998 NISSAN PATROL ignition

Trouble Diagnoses without CONSULT
DIAGNOSTIC PROCEDURE 6
Inspecting SRS malfunctioning parts by using ``AIR BAG''
warning lamp Ð Diagnosis mode
NOTE:
SRS will not enter Diagnosis mode if no malfunction is
detected in User mode.
1. Open driver's door.
2. Turn ignition switch from ``OFF'' to ``ON''.
3. Press driver's door switch at least 5 times within 7 seconds
after turning ignition switch ``ON''.
SRS is now in Diagnosis mode.
4. ``AIR BAG'' warning lamp operates in Diagnosis mode as fol-
lows:
NOTE:
If SRS does not enter Diagnosis mode even though malfunc-
tion is detected in User mode, go to DIAGNOSTIC PROCE-
DURE 11, page RS-44.
No. ``AIR BAG'' warning lamp operation Ð Diagnosis mode Ð SRS condition
1
MRS100A
jathroughjbare repeated.+Diagnosis
results (pre-
viously
stored in the
memory)
might not be
erased after
repair.
+Intermittent
problem has
been
detected in
the past.
Go to DIAG-
NOSTIC PRO-
CEDURE 8
(RS-42).
2
MRS099A
jathroughjbare repeated.
NOTE:
j
aÐ Interval I
jbÐ Start signal (Start signal
identi®es display modes)
j
cÐ Interval II
jdÐ Indicates
malfunctioning part (0.5
sec. ON and 0.5 sec. OFF
is counted as one ¯ash.)The system
has a problem
and needs to
be repaired.
5. Malfunctioning part is indicated by the number of ¯ashes (part
j
d). Compare the number of ¯ashes to ``AIR BAG WARNING
LAMP FLASH CODE CHART'', page RS-40, and locate mal-
functioning part.
6. Turn ignition switch ``OFF'', and disconnect both battery cables.
7. Repair the system as outlined by the ``Repair order'' in ``AIR
BAG WARNING LAMP FLASH CODE CHART'' that corre-
sponds to the ¯ash code. For replacement procedure of com-
ponent parts, refer to RS-12.
8. After repairing the system, go to DIAGNOSTIC PROCEDURE
7, page RS-40.
SRS465
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
RS-39

AIR BAG WARNING LAMP FLASH CODE CHART
Warning
lampFlash codejd(# of ¯ashes)ExplanationRepair order
``Recheck SRS at each replacement.''
``AIR BAG'' warning lamp
0+Diagnosis results (previously stored in the
memory) might not be erased after repair.
+Intermittent problem has been detected in the
past.Go to DIAGNOSTIC PROCEDURE 8 (RS-42).
2 The driver's air bag module circuit is malfunction-
ing.1. Visually check the wiring harness connections.
2. Replace the harness if it has visible damage.
3. Replace the spiral cable.
4. Replace the driver's air bag module. (Before
disposing of it, it must be deployed.)
5. Replace the diagnosis sensor unit.
6. Replace the harness.
7 The diagnosis sensor unit is malfunctioning. 1. Visually check the wiring harness connections.
2. Replace the harness if it has visible damage.
3. Replace the diagnosis sensor unit.
4. Replace the harness.
8 The front passenger air bag module circuit is
malfunctioning.1. Visually check the wiring harness connections.
2. Replace the harness if it has visible damage.
3. Replace the front passenger air bag module.
(Before disposing of it, it must be deployed.)
4. Replace the diagnosis sensor unit.
5. Replace the harness.
* Follow the procedures in numerical order when repairing malfunctioning parts. Con®rm whether malfunction is eliminated
using the air bag warning lamp or CONSULT each time repair is ®nished. If malfunction is still observed, proceed to the next
step. When malfunction is eliminated, further repair work is not required.
DIAGNOSTIC PROCEDURE 7
Final checking after repairing SRS by using ``AIR BAG'' warn-
ing lamp Ð Diagnosis mode and User mode
1. After repairing SRS connect both battery cables.
2. Open driver's door.
3. Turn ignition switch from ``OFF'' to ``ON''.
4. ``AIR BAG'' warning lamp operates in Diagnosis mode as fol-
lows:
SRS465
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Trouble Diagnoses without CONSULT (Cont'd)
RS-40

No. ``AIR BAG'' warning lamp operation Ð Diagnosis mode Ð SRS condition
1
MRS100A
jathroughjbare repeated. No malfunc-
tion is
detected or
repair is com-
pleted.
No further
action is nec-
essary.
2
MRS099A
jathroughjdare repeated.
NOTE:
j
aÐ Interval I
jbÐ Start signal (Start signal
identi®es display modes)
j
cÐ Interval II
jdÐ Indicates malfunctioning
part (0.5 sec. ON and 0.5
sec. OFF is counted as one
¯ash.)The system
has a problem
and needs to
be repaired.
NOTE:
When diagnosis sensor unit is replaced with new one, ``AIR
BAG'' warning lamp will operate in User mode. Checking ``AIR
BAG'' warning lamp operation in Diagnosis mode is not
required. Go to step 6.
5. If ``AIR BAG'' warning lamp operates as shown in No. 1 in chart
above, turn ignition switch ``OFF'' to reset from Diagnosis mode
to User mode and to erase the memory of the malfunction.
Then go to step 6.
If ``AIR BAG'' warning lamp operates as shown in No. 2 in chart
above, the malfunctioning part is not repaired completely, or
another malfunctioning part is detected. Go to DIAGNOSTIC
PROCEDURE 6, page RS-39, and repair malfunctioning part
completely.
6. Turn ignition switch ``ON''. ``AIR BAG'' warning lamp operates
in User mode. Compare ``AIR BAG'' warning lamp operation to
the chart below.
NOTE:
If switching Diagnosis mode to User mode is required while
malfunction is being detected, turn ignition switch from ``OFF''
to ``ON''. Then press driver's door switch at least 5 times
within 7 seconds after turning ignition switch ``ON''. SRS is
now in User mode.
``AIR BAG'' warning lamp operation Ð User mode Ð SRS condition Reference item
MRS095A
No malfunction is
detected.
No further action is neces-
sary.
Ð
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Trouble Diagnoses without CONSULT (Cont'd)
RS-41

Trouble Diagnoses: ``AIR BAG'' Warning Lamp
Does Not Turn Off
DIAGNOSTIC PROCEDURE 9
Is air bag deployed?
NocYe s
Refer to COLLISION DIAG-
NOSIS (RS-45).
Is SRS ``Air Bag'' fuse OK?
Ye scNo
Replace fuse.
Connect CONSULT and touch
``START''.
+Is ``AIRBAG'' displayed on
CONSULT?
Ye s
cNo
Visually check the wiring
harness connection of diag-
nosis sensor unit. If the har-
ness connection check is
OK, replace diagnosis sen-
sor unit.
Is harness connection between warning
lamp and diagnosis sensor unit OK?
Ye s
cNo
Connect warning lamp and
diagnosis sensor unit con-
nector properly. If warning
lamp still does not go off,
replace harness.
Replace diagnosis sensor unit.
Trouble Diagnoses: ``AIR BAG'' Warning Lamp
Does Not Turn On
DIAGNOSTIC PROCEDURE 10
Is meter fuse OK?
Ye scNo
Replace fuse.
Is warning lamp LED OK?
Ye scNo
Replace warning lamp LED.
1. Disconnect diagnosis sensor unit con-
nector.
2. Turn the ignition key to ON position.
+Does warning lamp turn on?
Ye s
cNo
Check the ground circuit of
``AIR BAG'' warning lamp.
Replace diagnosis sensor unit.
SRS307
SRS180
SRS469
.
.
.
.
.
.
.
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
RS-43