Ignition NISSAN TERRANO 2004 Service Repair Manual

Diagnostic Procedure 2 (Warning lamp stays
on when ignition switch is turned ON)
CHECK FUSE.
Check 10A fuse
19. For fuse layout, refer
to POWER SUPPLY ROUTING in EL sec-
tion.
OK
ENG qA(Go to next page.)
CHECK WARNING LAMP.
1. Disconnect ABS actuator and electric
unit connector.
2. Connect suitable wire between ABS actuator and electric unit harness con-
nector
F29terminals q13,q21and
ground.
Warning lamp should not activate.
OK
ENG qB(Go to next page.)
CHECK HARNESS CONNECTOR.
Check ABS actuator and electric unit pin
terminals for damage or the connection of
ABS actuator and electric unit harness
connector. Reconnect ABS actuator and
electric unit harness connector. Then
retest.
NG
EOK Inspection end
CHECK ABS MOTOR GROUND.
1. Turn ignition switch OFF.
2. Disconnect ABS actuator and electric unit connector.
3. Check continuity between ABS actuator and electric unit connector
F29(body
side) terminal q
16and ground.
Continuity should exist.
OK
ENG Check the following.
IHarness connector
F29
IHarness for open or short
between ABS actuator
and electric unit and
ground
If NG, repair harness or
connector.
REPLACE.
Replace ABS actuator and electric unit.
YBR271
NBR345
NBR326
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H
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TROUBLE DIAGNOSES
BR-70
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qA
REPLACE.
Replace fuse.
Does the fuse blow out when ignition
switch is turned ON?
Ye s
ENoInspection end
CHECK ABS ACTUATOR AND ELEC-
TRIC UNIT POWER SUPPLY CIRCUIT
FOR SHORT.
1. Disconnect battery cable and ABS
actuator and electric unit connector
F29.
2. Check continuity between ABS actuator and electric unit connector
F29body
side terminal q
15and ground.
Continuity should not exist.
OK
ENG Check the following.
IHarness connector
F29
IHarness for open or short
between ABS actuator
and electric unit and fuse
If NG, repair harness or
connector.
REPLACE.
Replace ABS actuator and electric unit.
qB
CHECK ABS WARNING LAMP CON-
TROL CIRCUIT.
1. Disconnect combination meter connector LHD:
F118andF119, or RHD:M837and
M838.
2. Check continuity between ABS actuator and electric unit connector
F29(body
side) terminal and combination meter
connector LHD:
F118andF119,or
RHD:
M837andM838.
OK
ENG Check the following.
IHarness connectors
LHD:
F118andF119,or
RHD:
M837andM838
andF29
I Harness for open or
short between ABS
actuator and electric unit
and combination meter
If NG, repair harness or
connectors.
CHECK COMBINATION METER.
Check combination meter. Refer to WARN-
ING LAMPS in EL section.
F29 LHD:F119RHD:M838
LHD:F118RHD:M837
Continu-
ity
Terminal q
13q1ÐYes
Terminal q
21Ðq44Ye s
NBR327
YBR270
H
H
H
H
H
TROUBLE DIAGNOSES
Diagnostic Procedure 2 (Warning lamp stays
on when ignition switch is turned ON) (Cont'd)
BR-71
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qA
REPLACE.
Replace fusible link.
Does the fusible link blow out when
ignition switch is turned ON?
Ye s
ENoInspection end
CHECK SOLENOID VALVE RELAY
POWER SUPPLY CIRCUIT.
1. Disconnect battery cable and ABS
actuator and electric unit connector.
2. Check continuity between ABS actuator and electric unit connector
F29(body
side) terminal q
18and ground.
Continuity should not exist.
OK
ENG Check the following
IHarness connector
F29, LHD:F68and
M784, or RHD:F79and
M744
IHarness for open or short
between ABS actuator
and electric unit and fus-
ible link
If NG, repair harness or
connector.
REPLACE.
Replace ABS actuator and electric unit.
qB
REPLACE.
Replace fuse.
Does the fuse blow out when ignition
switch is turned ON?
No
EYe s Check the following.
IHarness connector
F29,
M822, LHD:F66and
M787, or RHD:F76:
,F136:,M743:
andM829:
IHarness for open or
short between ABS
actuator and electric unit
and fuse
If NG, repair harness or
connector.
END
Inspection end
NBR331
H
H
H
H
H
TROUBLE DIAGNOSES
Diagnostic Procedure 3 (ABS actuator solenoid
valve and solenoid valve relay) (Cont'd)
BR-73
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qA
REPLACE.
Replace fusible link.
Does the fusible link blow out when
ignition switch is turned ON?
Ye s
ENoInspection end
CHECK ABS ACTUATOR MOTOR
POWER SUPPLY CIRCUIT.
1. Disconnect battery cable and ABS
actuator and electric unit connector
F29.
2. Check continuity between ABS actuator and electric unit connector
F29(body
side) terminal q
17and ground.
Continuity should not exist.
OK
ENG Check the following
IHarness connector
F29,
LHD:
F68andM784,or
RHD:
F79andM744
I Harness for open or
short between ABS
actuator and electric unit
and fusible link
If NG, repair harness or
connector.
CHECK HARNESS CONNECTOR.
Check ABS actuator and electric unit pin
terminals for damage or the connection of
ABS actuator and electric unit harness
connector.
Reconnect ABS actuator and electric unit
harness connector. Then retest.
NBR336
H
H
H
TROUBLE DIAGNOSES
Diagnostic Procedure 5 (Motor Relay or motor)
(Cont'd)
BR-77
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Diagnostic Procedure 7 (Low voltage)
Malfunction code No. 57
CHECK CONNECTOR.
1. Disconnect ABS actuator and electricunit connector. Check terminals for
damage or loose connections. Then
reconnect connector.
2. Carry out self-diagnosis again. Does warning lamp activate again?
Ye s
ENo Inspection end
CHECK ABS CONTROL UNIT POWER
SUPPLY CIRCUIT.
1. Disconnect ABS actuator and electric
unit connector.
2. Check voltage between ABS actuator and electric unit connector
F29termi-
nal q
15and ground.
Battery voltage should exist when
ignition switch is turned ON.
OK
ENG qA(See below.)
CHECK ABS CONTROL UNIT GROUND.
Refer to ABS ACTUATOR AND ELEC-
TRIC UNIT GROUND in Ground Circuit
Check, BR-67.
OK
ENG Repair harness and con-
nector.
CHECK HARNESS CONNECTOR.
Check ABS actuator and electric unit pin
terminals for damage or the connection of
ABS actuator and electric unit harness
connector. Reconnect ABS actuator and
electric unit harness connector. Then
retest.ENGReplace
Replace ABS actuator and
electric unit
qA
CHECK FUSE.
Check 10A fuse
19. For fuse layout, refer
to POWER SUPPLY ROUTING in EL sec-
tion.
OK
ENG Replace fuse.
CHECK ABS CONTROL UNIT POWER
SUPPLY CIRCUIT.
Check continuity between fuse and ABS
actuator and electric unit connector
F29
(body side) terminal q15.
OK
ENG
Check the following:
IHarness connector
F29,
M822, LHD:F66and
M787, or RHD:F76:
,F136:,M743:
andM829:
IHarness for open or
short between ABS
actuator and electric unit
and fuse
If NG, repair harness or
connector.
Check battery. Refer to BATTERY in EL
section.
NBR337
NBR338
H
H
H
H
H
H
TROUBLE DIAGNOSES
BR-78
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Supplemental Restraint System (SRS) ªAIR
BAGº and ªSEAT BELT PRE-TENSIONERº
The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS composition which is available to NISSAN MODEL R20 is as follows (The composition
varies according to the destination and optional equipment.):
IFor a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), front seat
belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
I For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), side air bag (satellite) sensor, diagnosis sensor unit (one of components of air bags for a frontal
collision), wiring harness, warning lamp (one of components of air bags for a frontal collision).
WARNING:
I To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized NISSAN dealer.
I Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
I Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation tape either just
before the harness connectors or for the complete harness are related to the SRS.
Precautions for SRS ªAIR BAGº and ªSEAT
BELT PRE-TENSIONERº Service
IDo not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
I Before servicing the SRS, turn ignition switch ªOFFº, disconnect both battery cables and wait at least 3
minutes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt
pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.
I Diagnosis sensor unit must always be installed with their arrow marks ª +º pointing towards the front of
the vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before
installation and replace as required.
I The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear.
I Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad
side facing upward and place front side air bag module (built-in type) standing with stud bolt side setting
bottom.
I Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
I After air bag inflates, the front instrument panel assembly should be replaced if damaged.
Precautions for Steering System
IBefore disassembly, thoroughly clean the outside of the unit.
I Disassembly should be done in a clean work area. It is important to prevent the internal parts from
becoming contaminated by dirt or other foreign matter.
I When disassembling parts, be sure to place them in order on a part rack so they can be reinstalled
in their proper positions.
I Use nylon cloths or paper towels to clean the parts; common shop rags can leave lint that might
interfere with their operation.
I Before inspection or reassembly, carefully clean all parts with a general purpose, non-flammable
solvent.
I Before assembly, apply a coat of recommended ATF* to hydraulic parts. Vaseline may be applied
to O-rings and seals. Do not use any grease.
I Replace all gaskets, seals and O-rings. Avoid damaging O-rings, seals and gaskets during instal-
lation. Perform functional tests whenever designated.
*: Automatic transmission fluid
PRECAUTIONS
ST-2
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Precautions
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ªAIR BAGº AND ªSEAT BELT
PRE-TENSIONERº
The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS composition which is available to NISSAN MODEL R20 is as follows (The composition
varies according to the destination and optional equipment.):
IFor a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), front seat
belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
I For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), side air bag (satellite) sensor, diagnosis sensor unit (one of components of air bags for a frontal
collision), wiring harness, warning lamp (one of components of air bags for a frontal collision).
WARNING:
I To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized NISSAN dealer.
I Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
I Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation tape either just
before the harness connectors or for the complete harness are related to the SRS.
Precaution for Seat Belt Service
CAUTION:
IBefore removing the seat belt pre-tensioner assembly, turn the ignition switch off, disconnect both
battery cables and wait at least 3 minutes.
I Do not use electrical test equipment for seat belt pre-tensioner connector.
I After replacing or reinstalling seat belt pre-tensioner assembly, or reconnecting seat belt pre-ten-
sioner connector, check the system function. Refer to ªSRS Operation Checkº for details. (RS-38)
I Do not disassemble buckle or seat belt assembly.
I Replace anchor bolts if they are deformed or worn out.
I Never oil tongue and buckle.
I If any component of seat belt assembly is questionable, do not repair. Replace the whole seat belt
assembly.
I If webbing is cut, frayed, or damaged, replace seat belt assembly.
I When replacing seat belt assembly, use a genuine seat belt assembly.
After A Collision
WARNING:
Inspect all seat belt assemblies including retractors and attaching hardware after any collision.
NISSAN recommends that all seat belt assemblies in use during a collision be replaced unless the
collision was minor and the belts show no damage and continue to operate properly. Failure to do so
could result in serious personal injury in an accident. Seat belt assemblies not in use during a colli-
sion should also be replaced if either damage or improper operation is noted. Seat belt pre-tensioner
should be replaced even if the seat belts are not in use during a frontal collision in which the air bags
are deployed.
Replace any seat belt assembly if:
IThe seat belt was in use at the time of a collision (except for minor collisions and the belts, retractors and
buckles show no damage and continue to operate properly).
I The seat belt was damaged in an accident. (i.e. torn webbing, bent retractor or guide, etc.)
I The seat belt attaching point was damaged in an accident. Inspect the seat belt attaching area for dam-
age or distortion and repair as necessary before installing a new seat belt assembly.
I Anchor bolts are deformed or worn out.
SEAT BELTS
RS-2
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Precautions
SUPPLEMENTAL RESTRAINT SYSTEM (SRS) ªAIR BAGº AND ªSEAT BELT
PRE-TENSIONERº
The Supplemental Restraint System such as ªAIR BAGº and ªSEAT BELT PRE-TENSIONERº used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS composition which is available to NISSAN MODEL R20 is as follows (The composition
varies according to the destination and optional equipment.):
IFor a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the steer-
ing wheel), front passenger air bag module (located on the instrument panel on passenger side), front seat
belt pre-tensioners, a diagnosis sensor unit, warning lamp, wiring harness and spiral cable.
I For a side collision
The Supplemental Restraint System consists of front side air bag module (located in the outer side of front
seat), side air bag (satellite) sensor, diagnosis sensor unit (one of components of air bags for a frontal
collision), wiring harness, warning lamp (one of components of air bags for a frontal collision).
WARNING:
I To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance should be per-
formed by an authorized NISSAN dealer.
I Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system.
I Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. Spiral cable and wiring harnesses covered with yellow insulation tape either just
before the harness connectors or for the complete harness are related to the SRS.
PRECAUTIONS FOR SRS ªAIR BAGº AND ªSEAT BELT PRE-TENSIONERº SERVICE
IDo not use electrical test equipment to check SRS circuits unless instructed to in this Service Manual.
I Before servicing the SRS, turn ignition switch ªOFFº, disconnect both battery cables and wait at least 3
minutes.
For approximately 3 minutes after the cables are removed, it is still possible for the air bag and seat belt
pre-tensioner to deploy. Therefore, do not work on any SRS connectors or wires until at least 3 minutes
have passed.
I Diagnosis sensor unit must always be installed with their arrow marks ª +º pointing towards the front of
the vehicle for proper operation. Also check diagnosis sensor unit for cracks, deformities or rust before
installation and replace as required.
I The spiral cable must be aligned with the neutral position since its rotations are limited. Do not attempt to
turn steering wheel or column after removal of steering gear.
I Handle air bag module carefully. Always place driver and front passenger air bag modules with the pad
side facing upward and place front side air bag module (built-in type) standing with stud bolt side setting
bottom.
I Conduct self-diagnosis to check entire SRS for proper function after replacing any components.
I After air bag inflates, the front instrument panel assembly should be replaced if damaged.
WIRING DIAGRAMS AND TROUBLE DIAGNOSIS
When you read wiring diagrams, refer to the following:
IGI-10, ªHOW TO READ WIRING DIAGRAMSº
I EL-8, ªPOWER SUPPLY ROUTINGº for power distribution circuit
When you perform trouble diagnosis, refer to the following:
I GI-25, ªHOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSISº
I GI-22, ªHOW TO PERFORM EFFICIENT DIAGNOSES FOR AN ELECTRICAL INCIDENTº
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-8
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COMMERCIAL SERVICE TOOL
Tool nameDescription
Tamper resistant torx
socket
NT757
Size: T30
SRS Configuration
The air bag deploys if the diagnosis sensor unit activates while the ignition switch is in the ªONº or ªSTARTº
position.
The collision modes for which supplemental restraint systems are activated are different among the SRS sys-
tems. For example, the driver air bag module and front passenger air bag module are activated in a frontal
collision but not in a side collision.
SRS configurations which are activated for some collision modes are as follows:
SRS configuration Frontal collisionLeft side collision Right side collision
Driver air bag module qÐÐ
Front passenger air bag module qÐÐ
Front LH seat belt pre-tensioner qÐÐ
Front RH seat belt pre-tensioner qÐÐ
Front LH side air bag module Ð qÐ
Front RH side air bag module Ð Ð q
SRS585-D
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
Preparation (Cont'd)
RS-10
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SRS Component Parts Location
Maintenance Items
CAUTION:
Do not use electrical test equipment to check SRS circuit.
1. Check operation of ªAIR BAGº warning lamp.After turning ignition key to ªONº position, ªAIR BAGº warning
lamp illuminates. The ªAIR BAGº warning lamp will go off after
about 7 seconds if no malfunction is detected. If any of the fol-
lowing ªAIR BAGº warning lamp conditions occur, immediately
check the air bag system. Refer to RS-38 for details.
I The ªAIR BAGº warning lamp does not illuminate when the
ignition switch is turned ªONº.
I The ªAIR BAGº warning lamp does not go off about 7 seconds
after the ignition switch is turned ªONº.
I The ªAIR BAGº warning lamp blinks after about 7 seconds after
the ignition switch is turned ªONº.
2. Visually check SRS components.
1) Diagnosis sensor unit
I Check diagnosis sensor unit and bracket for dents, cracks and
deformities.
I Check connectors for damage, and terminals for deformities.
2) Air bag module and steering wheel
I Remove air bag module from steering wheel, instrument panel
or seatback. Check harness cover and connectors for damage,
terminals for deformities, and harness for binding.
NRS102
SRS797-A
SUPPLEMENTAL RESTRAINT SYSTEM (SRS)
RS-12
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