2001 NISSAN PICK-UP Repair Manual

Wiring Diagram Ð SRS Ð/LHD
GRS006A
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
RS-3018

GRS007A
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Wiring Diagram Ð SRS Ð/LHD (Cont'd)
RS-3019

Self-diagnosis
DIAGNOSTIC PROCEDURE 1 (without CONSULT-
II)
Checking SRS operation by using ªAIR BAGº warning lamp
Ð User mode
1. After turning ignition switch from ªOFFº to ªONº, ªAIR BAGº
warning lamp operates.
2. Compare ªAIR BAGº warning lamp operation to the chart
below.
ªAIR BAGº warning lamp operation Ð User mode Ð SRS condition Reference item
MRS095A
No malfunction is
detected.
No further action is neces-
sary.
Ð
MRS096A
The system is malfunction-
ing and needs to be
repaired as indicated.Go to DIAGNOSTIC PRO-
CEDURE 2 or 3 (RS-3021
or 3024).
MRS097A
Air bag is deployed.
Seat belt pre-tensioner is
deployed.Go to COLLISION DIAG-
NOSIS (RS-3037).
Air bag fuse, diagnosis
sensor unit or harness is
malfunctioning and needs
to be repaired.Go to DIAGNOSTIC PRO-
CEDURE 9 (RS-3036).
MRS098A
One of the following has
occurred and needs to be
repaired.
+Meter fuse is blown.
+ªAIR BAGº warning lamp
circuit has open or
short.
+Diagnosis sensor unit is
malfunctioning.Go to DIAGNOSTIC PRO-
CEDURE 10
(RS-3036).
SRS800
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
RS-3020

DIAGNOSTIC PROCEDURE 2 (with CONSULT-II)
Inspecting SRS malfunctioning parts by using CONSULT-II
Ð Diagnosis mode
1. Turn ignition switch ªOFFº.
2. Connect CONSULT-II to data link connector.
3. Turn ignition switch ªONº.
4. Touch ªSTARTº.
5. Touch ªAIR BAGº.
6. Touch ªSELF-DIAG [CURRENT]º.
7. Diagnostic codes are displayed on ªSELF-DIAG [CUR-
RENT]º.
SRS733
SRS695
SRS771
SRS697
SHIA0203E
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-3021

If no malfunction is detected on ªSELF-DIAG [CURRENT]º even
though malfunction is detected by the ªAIR BAGº warning lamp,
check the battery voltage.
If the battery voltage is less than 9V, charge the battery. Then
go to DIAGNOSTIC PROCEDURE 4 for final checking, page
RS-3028.
If the battery voltage is OK, go to DIAGNOSTIC PROCEDURE
6, page RS-3032, to diagnose the following situations:
+Self-diagnostic result (previously stored in the memory)
might not be erased after repair.
+The SRS system malfunctions intermittently.
8. Touch ªPRINTº.
9. Compare diagnostic codes to the CONSULT-II DIAGNOS-
TIC CODE CHART, page RS-3023.
10. Touch ªBACKº key of CONSULT-II until ªSELECT SYSTEMº
appears in order to return to User mode from Diagnosis
mode.
11. Turn ignition switch ªOFFº, then turn off and disconnect
CONSULT-II and both battery cables.
12. Repair the system as outlined by the ªRepair orderº in CON-
SULT-II DIAGNOSTIC CODE CHART, that corresponds to
the self-diagnostic result. 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.
13. After repairing the system, go to DIAGNOSTIC PROCE-
DURE 4 for final checking, page RS-3028.
SRS701
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-3022

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