2000 NISSAN PATROL Electronic Repair Manual

Diagnostic item ExplanationRepair order
Recheck SRS at each
replacement.
SATELLITE SENS LH
[UNIT FAIL]
SATELLITE SENS LH
[COMM FAIL]+Satellite sensor (LH) 1. Visually check the wiring har-
ness connection.
2. Replace the harness if it has
visible damage.
3. Replace the satellite sensor
(LH).
4. Replace the diagnosis sensor
unit.
5. Replace the related harness.
SATELLITE SENS RH
[UNIT FAIL]
SATELLITE SENS RH
[COMM FAIL]+Satellite sensor (RH) 1. Visually check the wiring har-
ness connection.
2. Replace the harness if it has
visible damage.
3. Replace the satellite sensor
(RH).
4. Replace the diagnosis sensor
unit.
5. Replace the related harness.
PRE-TEN FRONT LH
[OPEN/VB-SHORT]+The circuit for front LH pre-tensioner 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 front LH seat belt.
(Before disposing, it must be
deactivated.)
4. Replace the diagnosis sensor
unit.
5. Replace the related harness. PRE-TEN FRONT LH
[GND-SHORT]+The circuit for front LH pre-tensioner is shorted to ground.
PRE-TEN FRONT RH
[OPEN/VB-SHORT]+The circuit for front RH pre-tensioner 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 front RH seat belt.
(Before disposing, it must be
deactivated.)
4. Replace the diagnosis sensor
unit.
5. Replace the related harness. PRE-TEN FRONT RH
[GND-SHORT]+The circuit for front RH pre-tensioner is shorted to ground.
CONTROL UNIT+Low battery voltage (Less than 9V)+Go to DIAGNOSTIC PROCE-
DURE 3 (RS-1038) after
charging battery.
+Diagnosis 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 air bag harness.
* 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-1037

DIAGNOSTIC PROCEDURE 3 (with CONSULT-II)
Final checking after repairing SRS by using CONSULT-II Ð
Diagnosis mode
1. After repairing SRS, connect both battery cables.
2. Connect CONSULT-II to data link connector.
3. Turn ignition switch from ªOFFº to ªONº.
4. Touch ªSTARTº.
5. Touch ªAIR BAGº.
6. Touch ªSELF-DIAG [CURRENT]º.
7. If no malfunction is detected on ªSELF-DIAG [CURRENT]º,
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 ªSELF-DIAG [CURRENT]º,
the malfunctioning part is not repaired completely or another
malfunctioning part is detected. Go to DIAGNOSTIC PRO-
CEDURE 2, page RS-1034, and repair malfunctioning part
completely.
SRS468-A
SRS695
SRS771
SRS697
SRS701
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-1038

8. Touch ªERASEº.
NOTE:
Touch ªERASEº to clear the memory of the malfunction
(ªSELF-DIAG [PAST]º).
If the memory of the malfunction is ªSELF-DIAG [PAST]º 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 ªBACKº key of CONSULT-II to select ªSELF-DIAG
[PAST]º in the ªSELECT DIAG MODEº screen. Touch ªSELF-
DIAG [PAST]º.
10. Check that no malfunction is detected on ªSELF-DIAG
[PAST]º.
NOTE:
Past malfunction for seat belt pre-tensioner system will not
be displayed on ªSELF-DIAG [PAST]º.
11. Touch ªBACKº key of CONSULT-II until SELECT SYSTEM
appears.
12. Turn ignition switch ªOFFº, then turn off and disconnect
CONSULT-II.
13. Go to DIAGNOSTIC PROCEDURE 1, page RS-1032 to
checkSRS operation by using ªAIR BAGº warning lamp with
User mode.
SRS773
SRS697
SRS702
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-1039

DIAGNOSTIC PROCEDURE 4 (Continued from
DIAGNOSTIC PROCEDURE 2)
Inspecting SRS malfunctioning record
Is it the first time for maintenance of
SRS?
Yes
cNo
ªSELF-DIAG [PAST]º
(which was previously
entered) is still retained in
memory.
Go to DIAGNOSTIC PRO-
CEDURE 3 (RS-1038).
Go to DIAGNOSTIC PROCEDURE 5
(RS-1040).
DIAGNOSTIC PROCEDURE 5 (with CONSULT-II)
Inspecting SRS intermittent malfunction by using CON-
SULT-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.
SRS468-A
SRS695
SRS771
.
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-1040

6. Touch ªSELF-DIAG [PAST]º.
7. If diagnostic codes are displayed on ªSELF-DIAG [PAST]º,
go to step 10.
If no malfunction is detected on ªSELF-DIAG [PAST]º, touch
ªBACKº and go back to ªSELECT DIAG MODEº.
NOTE:
Past malfunction for seat belt pre-tensioner system will not
be displayed on ªSELF-DIAG [PAST]º.
8. Touch ªTROUBLE DIAG RECORDº.
NOTE:
With ªTROUBLE DIAG RECORDº, diagnosis results previ-
ously erased by a reset operation can be displayed.
9. Diagnostic code is displayed on ªTROUBLE DIAG
RECORDº.
SRS697
SRS700
SRS702
SRS697
SRS704
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-1041

10. Touch ªPRINTº.
11. Compare diagnostic codes to the INTERMITTENT MAL-
FUNCTION DIAGNOSTIC CODE CHART, page RS-1043.
12. Touch ªBACKº key of CONSULT-II until SELECT SYSTEM
appears.
13. Turn ignition switch ªOFFº, then turn off and disconnect
CONSULT-II and both battery cables.
14. Repair the system as outlined by the ªRepair orderº in
INTERMITTENT MALFUNCTION DIAGNOSTIC CODE
CHART, that corresponds to the self-diagnosis result. For
replacement procedure of component parts, refer to RS-1008
and ªRemoval and Installationº in RS section of Service
Manual (Pub. No. SM7E-2Y61G0 or SM7E-2Y61G1).
15. Go to DIAGNOSTIC PROCEDURE 3, page RS-1038.
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-1042

INTERMITTENT MALFUNCTION DIAGNOSTIC CODE CHART (ªSELF-DIAG [PAST]º or
ªTROUBLE DIAG RECORDº)
Diagnostic item Explanation Repair order
NO DTC IS DETECTED+No malfunction is detected.+Go to DIAGNOSTIC PROCEDURE 3 (RS-
1038).
AIRBAG MODULE
[OPEN]+Driver's air bag module circuit is open.
(including 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]+Driver's air bag module circuit is shorted to
some power supply circuit. (including the spi-
ral cable)
AIRBAG MODULE
[GND-SHORT]+Driver's air bag module circuit is shorted to
ground. (including the spiral cable)
AIRBAG MODULE
[SHORT]+Driver's air bag module circuits are shorted to
each other.
ASSIST A/B MODULE
[VB-SHORT]+Front 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]+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.
SIDE MODULE LH
[OPEN]+Side air bag module (LH) circuit is open. 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 front side air bag mod-
ule (LH). (Before disposing the front side air
bag module (LH), it must be deployed.) SIDE MODULE LH
[VB-SHORT]+Side air bag module (LH) circuit is shorted to
some power supply circuits.
SIDE MODULE LH
[GND-SHORT]+Side air bag module (LH) circuit is shorted to
ground.
SIDE MODULE LH
[SHORT]+Side air bag module (LH) circuits are shorted
to each other.
SIDE MODULE RH
[OPEN]+Side air bag module (RH) circuit is open. 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 front side air bag mod-
ule (RH). (Before disposing the front side air
bag module (RH), it must be deployed.) SIDE MODULE RH
[VB-SHORT]+Side air bag module (RH) circuit is shorted to
some power supply circuits.
SIDE MODULE RH
[GND-SHORT]+Side air bag module (RH) circuit is shorted to
ground.
SIDE MODULE RH
[SHORT]+Side air bag module (RH) circuits are shorted
to each other.
SATELLITE SENS LH
[UNIT FAIL]
SATELLITE SENS LH
[COMM FAIL]+Satellite sensor (LH) 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 satellite sensor (LH).
SATELLITE SENS RH
[UNIT FAIL]
SATELLITE SENS RH
[COMM FAIL]+Satellite sensor (RH) 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 satellite sensor (RH).
CONTROL UNIT+Diagnosis 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.
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-1043

DIAGNOSTIC PROCEDURE 6 (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. Open driver's door.
2. Turn ignition switch from ªOFFº to ªONº.
3. Press driver's door switch at least 5 times within 7 seconds
after turning ignition switch ªONº.
SRS is now in Diagnosis mode.
4. ªAIR BAGº 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-1051.
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 8 (RS-
1050).
2
SRS341
VathroughVdare repeated.
VbÐ Driver and passenger air bag
marker (For identifying driver
and/or passenger air bag mal-
functioning)
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.)
SRS465
TROUBLE DIAGNOSES Ð Supplemental Restraint System (SRS)
Self-diagnosis (Cont'd)
RS-1044