1999 NISSAN PICK-UP airbag

DIAGNOSTIC PROCEDURE 2 (with CONSULT)
Inspecting SRS malfunctioning parts by using CONSULT Ð
Diagnosis mode
1. Turn ignition switch ``OFF''.
2. Connect ``CONSULT'' to Data link connector.
3. Turn ignition switch ``ON''.
4. Touch ``START''.
5. Touch ``AIRBAG''.
6. Touch ``SELF-DIAG [CURRENT]''.
7. Diagnostic codes are displayed on ``SELF-DIAG [CUR-
RENT]''.
SRS733
SRS046
SRS074
SRS047
SRS048
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-2026

CONSULT DIAGNOSTIC CODE CHART (``SELF-DIAG [CURRENT]'')
Diagnostic item ExplanationRepair order
Recheck SRS at each
replacement.
NO SELF DIAGNOSTIC
FAILURE INDICATEDWhen malfunction is indicated
by the ``AIR BAG'' warning lamp
in User mode
lLow battery voltage (Less
than 9V)lGo to DIAGNOSTIC PROCE-
DURE 4 (RS-2030) after
charging battery.
lSelf-diagnostic result ``SELF-
DIAG [PAST]'' (previously
stored in the memory) might
not be erased after repair.
lIntemittent malfunction has
been detected in the past.
lGo to DIAGNOSTIC PROCE-
DURE 6 (RS-2034).
lNo malfunction is detected.lGo to DIAGNOSTIC PROCE-
DURE 4 (RS-2030).
AIRBAG MODULE
[OPEN]
lDriver's air bag module circuit is open. (including the spiral cable) 1. Visually check the wiring har-
ness connection.
2. Replace the harness if it has
visible damage.
3. Replace the spiral cable.
4. Replace driver's air bag mod-
ule.
(Before disposal of it, it must
be deployed.)
5. Replace the diagnosis sensor
unit.
6. Replace the related harness. AIRBAG MODULE
[VB-SHORT]
lDriver's air bag module circuit is shorted to some power supply
circuit. (including the spiral cable)
AIRBAG MODULE
[GND-SHORT]
lDriver's air bag module circuit is shorted to ground. (including the
spiral cable)
AIRBAG MODULE
[SHORT]
lDriver's air bag module circuits are shorted to each other.
ASSIST A/B MODULE
[VB-SHORT]
lFront passenger air bag module circuit is shorted to some power
supply circuit.1. Visually check the wiring har-
ness connection.
2. Replace the harness if it has
visible damage.
3. Replace front passenger air
bag module.
(Before disposal of it, it must
be deployed.)
4. Replace the diagnosis sensor
unit.
5. Replace the related harness. ASSIST A/B MODULE
[OPEN]
lFront passenger air bag module circuit is open.
ASSIST A/B MODULE
[GND-SHORT]
lFront passenger air bag module circuit is shorted to ground.
ASSIST A/B MODULE
[SHORT]
lFront passenger air bag module circuits are shorted to each
other.
CONTROL UNIT
lDiagnosis sensor unit is malfunctioning. 1. Visually check the wiring har-
ness connections.
2. Replace the harness if it has
visible damage.
3. Replace the diagnosis sensor
unit.
4. Replace the related harness.
* Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is eliminated
using the air bag warning lamp or CONSULT each time repair is finished. If malfunction is still observed, proceed to the
next step. When malfunction is eliminated, further repair work is not required.
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-2028

5. Touch ``AIRBAG''.
6. Touch ``SELF-DIAG [CURRENT]''.
7. If no malfunction is detected on ``SELF-DIAG [CURRENT]'',
repair of SRS is completed. Go to step 8.
(When the malfunction was only in seat belt pre-tensioner
system, go to step 11.)
If any malfunction is detected on ``SELF-DIAG [CURRENT]'',
the malfunctioning part is not repaired completely or another
malfunctioning part is detected. Go to DIAGNOSTIC PRO-
CEDURE 2, page RS-2026, and repair malfunctioning part
completely.
8. Touch ``ERASE''.
NOTE:
Touch ``ERASE'' to clear the memory of the malfunction
(``SELF-DIAG [PAST]'').
If the memory of the malfunction is ``SELF-DIAG [PAST]'' is
not erased, the User mode shows the system malfunction by
the operation of the warning lamp even if the malfunction is
repaired completely.
9. Touch ``BACK'' key of CONSULT to select ``SELF-DIAG
[PAST]'' in the ``SELECT DIAG MODE'' screen. Touch
``SELF-DIAG [PAST]''.
SRS074
SRS047
SRS049
SRS357
SRS050
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-2031

5. Touch ``AIRBAG''.
6. Touch ``SELF-DIAG [PAST]''.
7. If diagnostic codes are displayed on ``SELF-DIAG [PAST]'',
go to step 10.
If no malfunction is detected on ``SELF-DIAG [PAST]'', touch
``BACK'' and go back to ``SELECT DIAG MODE''.
8. Touch ``TROUBLE DIAG RECORD''.
NOTE:
With ``TROUBLE DIAG RECORD'', diagnosis results previ-
ously erased by a reset operation can be displayed.
SRS074
SRS050
SRS054
SRS062
SRS055
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-2035

9. Diagnostic code is displayed on ``TROUBLE DIAG
RECORD''.
10. Touch ``PRINT''.
11. Compare diagnostic codes to the INTERMITTENT MAL-
FUNCTION DIAGNOSTIC CODE CHART, page RS-2036.
12. Touch ``BACK'' key of CONSULT until SELECT SYSTEM
appears, then turn off CONSULT.
13. Turn ignition switch ``OFF'', then disconnect CONSULT and
both battery cables.
14. Repair the system as outlined by the ``Repair order'' in
INTERMITTENT MALFUNCTION DIAGNOSTIC CODE
CHART, that corresponds to the self-diagnosis result. For
replacement procedure of component parts, refer to
RS-2007.
15. Go to DIAGNOSTIC PROCEDURE 4, page RS-2030.
INTERMITTENT MALFUNCTION DIAGNOSTIC CODE CHART (``SELF-DIAG [PAST]'' or
``TROUBLE DIAG RECORD'')
Diagnostic item Explanation Repair order
NO SELF DIAGNOSTIC
FAILURE INDICATED.When malfunction is
indicated by the ``AIR
BAG'' warning lamp in
User mode
lLow battery voltage
(Less than 9V)lGo to DIAGNOSTIC PROCEDURE 4 (RS-
2030) after charging battery.
lNo malfunction is detected.lGo to DIAGNOSTIC PROCEDURE 4 (RS-
2030).
AIRBAG MODULE
[OPEN]
lDriver's air bag module circuit is open. (includ-
ing the spiral cable)1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. If the harness check is OK, replace the spiral
cable, diagnosis sensor unit and driver air
bag module. (Before disposing the driver air
bag module, it must be deployed.) AIRBAG MODULE
[VB-SHORT]
lDriver's air bag module circuit is shorted to
some power supply circuit. (including the spi-
ral cable)
AIRBAG MODULE
[GND-SHORT]
lDriver's air bag module circuit is shorted to
ground. (including the spiral cable)
AIRBAG MODULE
[SHORT]
lDriver's air bag module circuits are shorted to
each other.
ASSIST A/B MODULE
[VB-SHORT]
lFront passenger air bag module circuit is
shorted to some power supply circuit.1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. If the harness check is OK, replace the diag-
nosis sensor unit and passenger air bag
module. (Before disposing the passenger air
bag module, it must be deployed.) ASSIST A/B MODULE
[OPEN]
lFront passenger air bag module circuit is
open.
ASSIST A/B MODULE
[GND-SHORT]
lFront passenger air bag module circuit is
shorted to ground.
ASSIST A/B MODULE
[SHORT]
lFront passenger air bag module circuits are
shorted to each other.
CONTROL UNIT
lDiagnosis sensor unit is malfunctioning. 1. Visually check the wiring harness connection.
2. Replace the harness if it has visible damage.
3. If the harness check is OK, replace the diag-
nosis sensor unit.
* Follow the procedures in numerical order when repairing malfunctioning parts, then make the final system check.
SRS056
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-2036

Trouble Diagnoses for Air Bag Warning
Lamp
DIAGNOSTIC PROCEDURE 9
SYMPTOM: ``AIR BAG'' warning lamp does not turn off.
Is air bag module deployed?
No
cYes
Replace air bag module
and diagnosis sensor unit.
Refer to COLLISION
DIAGNOSIS, (RS-2039).
Is SRS ``AIR BAG'' fuse OK?
Yes
cNo
Replace fuse and turn
ignition switch ON. If SRS
``AIR BAG'' fuse is blown
again, repair related har-
ness.
Connect CONSULT and touch
``START''.
lIs ``AIRBAG'' displayed on
CONSULT?
Yes
cNo
Replace diagnosis sensor
unit.
Is harness connection between warning
lamp and diagnosis sensor unit OK?
Yes
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.
DIAGNOSTIC PROCEDURE 10
SYMPTOM: ``AIR BAG'' warning lamp does not turn on.
Is meter fuse OK?
Yes
cNo
Replace fuse and turn
ignition switch ON. If
meter fuse is blown again,
repair related harness.
Is warning lamp LED OK?
Yes
cNo
Replace warning lamp
LED.
1. Disconnect diagnosis sensor unit con-
nector.
2. Turn the ignition key to ON position.
lDoes warning lamp turn on?
Yes
cNo
Connect warning lamp and
diagnosis sensor unit con-
nector properly. If warning
lamp still does not come
on, replace harness.
Replace diagnosis sensor unit.
SRS734
SRS543
SRS745
.
.
.
.
.
.
.
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
RS-2037