2001 NISSAN PICK-UP seat memory

Trouble Diagnoses Introduction
CAUTION:
+Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified with yellow harness connector.
+Do not attempt to repair, splice or modify the SRS wiring harness. If the harness is damaged,
replace it with a new one.
+Keep ground portion clean.
DIAGNOSIS FUNCTION
The SRS self-diagnosis results can be read by using ªAIR BAGº warning lamp, and/or CONSULT-II. The
reading of these results is accomplished using one of two modes Ð ªUser modeº and ªDiagnosis modeº.
The User mode is exclusively prepared for the customer (driver). This mode warns the driver of a system
malfunction through the operation of the ªAIR BAGº warning lamp.
The Diagnosis mode allows the technician to locate and inspect the malfunctioning part.
The mode applications for the ªAIR BAGº warning lamp and CONSULT-II are as follows:
User mode Diagnosis mode Display type
ªAIR BAGº warning lamp X X ON-OFF operation
CONSULT-II Ð X Monitoring
NOTE:
Seat belt pre-tensioner malfunction is indicated by ªAIR BAGº warning lamp.
DIAGNOSIS MODE FOR CONSULT-II
+ªSELF-DIAG [CURRENT]º
A current Self-diagnosis result (also indicated by the warning lamp flashes in the Diagnosis mode) is
displayed on the CONSULT-II screen in real time. This refers to a malfunctioning part requiring repairs.
+ªSELF-DIAG [PAST]º
Diagnosis results previously stored in the memory are displayed on the CONSULT-II screen. The stored
results are not erased until memory erasing is executed.
+ªTROUBLE DIAG RECORDº
With TROUBLE DIAG RECORD, diagnosis results previously erased by a reset operation can be dis-
played on the CONSULT-II screen.
+ªECU DISCRIMINATED NO.º
The diagnosis sensor unit for each vehicle model is assigned with its own, individual classification num-
ber. This number will be displayed on the CONSULT-II screen, as shown at left. When replacing the
diagnosis sensor unit, refer to the part number for the compatibility. After installation, replacement with
a correct unit can be checked by confirming this classification number on the CONSULT-II screen.
For NISSAN MODEL D22, the diagnosis sensor unit classification number assigned are as follows:
MODEL ECU DISCRIMINATED NO.
Single air bag5A37
Single air bag and seat belt pre-tensioner 5A39
Dual air bags5A38
Dual air bags and seat belt pre-tensioner 5A3A
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
RS-3014

CONSULT-II DIAGNOSTIC CODE CHART (ªSELF-DIAG [CURRENT]º)
Diagnostic item ExplanationRepair order
Recheck SRS at each
replacement.
NO DTC IS DETECTED When malfunction is indicated
by the ªAIR BAGº warning lamp
in User mode+Low battery voltage (Less
than 9V)+Go to DIAGNOSTIC PROCE-
DURE 4 (RS-3028) after
charging battery.
+Self-diagnostic result ªSELF-
DIAG [PAST]º (previously
stored in the memory) might
not be erased after repair.
+Intemittent malfunction has
been detected in the past.+Go to DIAGNOSTIC PROCE-
DURE 6 (RS-3032).
+No malfunction is detected.+Go to DIAGNOSTIC PROCE-
DURE 4 (RS-3028).
DRIVER AIRBAG MOD-
ULE
[OPEN]+Driver 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 air bag mod-
ule.
(Before disposal, it must be
deployed.)
5. Replace the diagnosis sensor
unit.
6. Replace the related harness. DRIVER AIRBAG MOD-
ULE
[VB-SHORT]+Driver air bag module circuit is shorted to a power supply circuit.
(including the spiral cable)
DRIVER AIRBAG MOD-
ULE
[GND-SHORT]+Driver air bag module circuit is shorted to ground. (including the
spiral cable)
DRIVER AIRBAG MOD-
ULE
[SHORT]+Driver air bag module circuits are shorted to each other.
ASSIST A/B MODULE
[VB-SHORT]+Front passenger air bag module circuit is shorted to a power sup-
ply 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, it must be
deployed.)
4. Replace the diagnosis sensor
unit.
5. Replace the related harness. ASSIST A/B MODULE
[OPEN]+Front passenger air bag module circuit is open.
ASSIST A/B MODULE
[GND-SHORT]+Front passenger air bag module circuit is shorted to ground.
ASSIST A/B MODULE
[SHORT]+Front passenger air bag module circuits are shorted to each
other.
PRE-TEN FRONT LH
[OPEN]+The circuit for seat belt pre-tensioner (LH) is open. 1. Visually check the wiring har-
ness connections.
2. Replace the harness if it has
visible damage.
3. Replace seat belt (LH).
(Before disposing, it must be
deactivated.)
4. Replace the diagnosis sensor
unit.
5. Replace the related harness. PRE-TEN FRONT LH
[VB-SHORT]+The circuit for seat belt pre-tensioner (LH) is shorted to a power
supply circuit.
PRE-TEN FRONT LH
[GND-SHORT]+The circuit for seat belt pre-tensioner (LH) is shorted to ground.
PRE-TEN FRONT RH
[OPEN/VB-SHORT]+The circuit for seat belt pre-tensioner (RH) is open or shorted to
some power supply circuit.1. Visually check the wiring har-
ness connections.
2. Replace the harness if it has
visible damage.
3. Replace seat belt (RH).
(Before disposing, it must be
deactivated.)
4. Replace the diagnosis sensor
unit.
5. Replace the related harness. PRE-TEN FRONT RH
[VB-SHORT]+The circuit for seat belt pre-tensioner (RH) is shorted to a power
supply circuit.
PRE-TEN FRONT RH
[GND-SHORT]+The circuit for front RH pre-tensioner is shorted to ground.
* Follow the procedures in numerical order when repairing malfunctioning parts. Confirm whether malfunction is eliminated
using the air bag warning lamp or CONSULT-II 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-3023

DIGNOSTIC PROCEDURE 3 (without CONSULT-II)
Inspecting SRS malfunctioning parts by using ªAIR BAGº
warning lamp Ð Diagnosis mode
NOTE:
SRS will not enter Diagnosis mode if no malfunction is
detected in User mode.
1. Turn ignition switch ªONº.
2. After ªAIR BAGº warning lamp lights for 7 seconds, turn igni-
tion switch ªOFFº within 1 second.
3. Wait more than 3 seconds.
4. Repeat steps 1 to 3 twice (Perform 3 times in total).
5. Turn ignition switch ªONº.
SRS is now in Diagnosis mode.
6. ªAIR BAGº warning lamp operates in Diagnosis mode as fol-
lows:
NOTE:
If SRS does not enter Diagnosis mode even though malfunction
is detected in User mode, check the battery voltage.
If the battery voltage is less than 9V, charge the battery. Then
go to DIAGNOSTIC PROCEDURE 5, page RS-3029.
If the battery voltage is OK, replace the diagnosis sensor unit.
No. ªAIR BAGº warning lamp flash pattern Ð Diagnosis mode Ð SRS condition
1
SRS333
VathroughVbare repeated.+Diagnosis
results (previ-
ously stored
in the
memory)
might not be
erased after
repair.
+Intermittent
malfunction
has been
detected in
the past.
Go to DIAG-
NOSTIC PRO-
CEDURE 7 (RS-
3032).
2
SRS341
VathroughVdare repeated.
VbÐ Driver and passenger air bag
and seat belt pre-tensioner
marker (For identifying driver,
passenger air bag and/or seat
belt pre-tensioners malfunction-
ing)
VdÐ Indicates malfunctioning part.
The number of flash varies with
malfunctioning part (0.5 sec.
ON and 0.5 sec. OFF is
counted as one flash.)The system is
malfunctioning
and needs to be
repaired.
3
SRS342-A
VathroughVfare repeated.
Vb,Vc,VdÐ Side air bag marker
(For identifying side
air bag malfunction-
ing)
VfÐ Indicates malfunctioning part.
The number of flash varies with
malfunctioning part (0.5 sec.
ON and 0.5 sec. OFF is
counted as one flash.)
SRS800
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-3024

7. Malfunctioning part is indicated by the number of flashes
(part
VdorVf). Compare the number of flashes to AIR BAG
WARNING LAMP FLASH CODE CHART, page RS-3025,
and locate malfunctioning part.
8.Turn ignition switch ªOFFº, and disconnect both battery cables.
9. Repair the system as outlined by the ªRepair orderº in AIR
BAG WARNING LAMP FLASH CODE CHART that corre-
sponds to the flash code. For replacement procedure of com-
ponent parts, refer to RS-3005 and ªRemoval and Installa-
tionº in RS section of Service Manual (Pub. No. SM9E-
D22BG0) for details.
10. After repairing the system, go to DIAGNOSTIC PROCE-
DURE 5, page RS-3029.
AIR BAG WARNING LAMP FLASH CODE CHART (DIAGNOSIS MODE)
+Diagnosis results
(previously stored in
the memory) might
not be erased after
repair.
+Intermittent malfunc-
tion has been
detected in the past.Flash pattern
SRS333
VathroughVbare repeated.
Repair order
+Go to DIAGNOSTIC PROCEDURE 7 (RS-3032).
The seat belt pre-ten-
sioner (RH) circuit is
malfunctioning.
(
Vd: 1 flash)Flash pattern
SRS801
VathroughVdare repeated.
VdÐ One flash indicates
mal-
functioning
pre-tensioner circuit
(RH).
Repair order (ªRecheck SRS at each replacement.º)
1. Visually check the wiring harness connections.
2. Replace the harness if it has visible damage.
3. Replace seat belt pre-tensioner (RH).
(Before disposing, it must be deactivated.)
4. Replace the diagnosis sensor unit.
5. Replace the related harness.
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-3025

No. ªAIR BAGº warning lamp flash pattern Ð Diagnosis mode Ð SRS condition
1
SRS333
VathroughVbare repeated. No malfunc-
tion is
detected or
repair is com-
pleted.
No further
action is nec-
essary.
2
SRS341
VathroughVdare repeated.
VbÐ Driver and passenger air
bag and seat belt pre-ten-
sioner marker (For identify-
ing driver, passenger air
bag and/or seat belt pre-
tensioners malfunctioning)
VdÐ Indicates malfunctioning
part. The number of
flashes varies with mal-
functioning part (0.5 sec.
ON and 0.5 sec. OFF is
counted as one flash.)The system is
malfunctioning
and needs to
be repaired.
3
SRS342-A
VathroughVfare repeated.
Vb,Vc,VdÐ Side air bag
marker (For iden-
tifying side air bag
malfunctioning)
VfÐ Indicates malfunctioning
part. The number of
flashes varies with mal-
functioning part (0.5 sec.
ON and 0.5 sec. OFF is
counted as one flash.)
NOTE:
When diagnosis sensor unit is replaced with new one, ªAIR
BAGº warning lamp will operate in User mode. Checking
ªAIR BAGº warning lamp operation in Diagnosis mode is
not required. Go to step 6.
5. If ªAIR BAGº warning lamp operates as shown in No. 1 in
chart above, turn ignition switch ªOFFº to reset from Diagno-
sis mode to User mode and to erase the memory of the mal-
function. Then go to step 6.
If ªAIR BAGº warning lamp operates as shown in No. 2 or No.
3 in chart above, the malfunctioning part is not repaired
completely, or another malfunctioning part is detected. Go to
DIAGNOSTIC PROCEDURE 3, page RS-3024, and repair
malfunctioning part completely.
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-3030