ABS NISSAN TERRANO 2002 Service Service Manual

qA
REPLACE.
Replace fusible link.
Does the fusible link blow out when
ignition switch is turned ON?
Ye s
ENo
Inspection 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) terminalq
17and ground.
Continuity should not exist.
OK
ENG
Check the following
IHarness connector
F29,
LHD:
F68andM784,or
RHD:
F79andM744
IHarness 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-76

Diagnostic Procedure 7 (Low voltage)
Malfunction code No. 57
CHECK CONNECTOR.
1. Disconnect ABS actuator and electric
unit 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-
nalq
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-66.
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.ENG
Replace
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) terminalq15.
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-77

Diagnostic Procedure 8 (G sensor)
Malfunction code No. 17
CHECK G SENSOR POWER SUPPLY
CIRCUIT.
Check 10A fuse
19. For fuse layout,
refer to POWER SUPPLY ROUTING in
EL section.
OK
ENG
Replace fuse.
CHECK CONNECTOR.
1. Disconnect ABS actuator and electric
unit connector. Check terminals for
damage or loose connection. Then
reconnect connector.
2. Carry out self-diagnosis again.
Does warning lamp activate again?
Ye s
ENo
Inspection end
CHECK G SENSOR.
Refer to G SENSOR in Electrical Compo-
nents Inspection, BR-83
OK
ENG
Replace G sensor.
CHECK G SENSOR POWER SUPPLY
CIRCUIT.
1. Disconnect G sensor connectors.
2. Check voltage between G sensor con-
nector terminalsq
1(B59),q3(B60)
and ground.
Battery voltage should exist.
OK
ENG
Check the following.
IHarness connectors
B59,B60, LHD:B73,
RHD:
B67, LHD:F66,
RHD:
F76:, RHD:
F136:, LHD:M787,
RHD:
M743:, RHD:
M829:, LHD:F45,
RHD:
F80andM822
IHarness for open or
short between G sensor
and ABS actuator and
electric unit
If NG, repair harness or
connectors.
CHECK G SENSOR GROUND.
1. Disconnect ABS actuator and electric
unit connector and G sensor connec-
tors.
2. Check continuity between ABS actuator
and electric unit connector
F29(body
side) terminalsq
20,q10and G sensor
connectors (body side) terminalsq
2
(B59),q4(B60).
Continuity should exist.
OK
ENG
Check the following.
IHarness connectors
B59,B60, LHD:B73,
RHD:
B67,F29, LHD:
F45and RHD:F80
IHarness for open or
short between G sensor
and ABS actuator and
electric unit
If NG, repair harness or
connectors.
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.
YBR276
YBR277
YBR278
H
H
H
H
H
TROUBLE DIAGNOSES
BR-78

Diagnostic Procedure 9 (Control unit)
Malfunctioning code No. 71
CHECK CONNECTOR.
1. Disconnect ABS actuator and electric
unit 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 ACTUATOR AND ELEC-
TRIC UNIT POWER SUPPLY CIRCUIT
Check voltage. Refer to
in Diagnostic
Procedure 7, BR-77.
CHECK SELF-DIAGNOSTIC RESULTS
Does warning lamp indicate code No. 71
again?
No
EYe s
Replace ABS actuator and
electric unit.
INSPECTION
Inspect the system according to the code
No.
NBR343H
H
H
TROUBLE DIAGNOSES
BR-79

Diagnostic Procedure 10 (Pedal vibration and
noise)
INSPECTION START
1. Apply brake.
2. Start engine.
3. Does the symptom appear only when
engine is started?
No
EYe s
Carry out self-diagnosis.
Refer to BR-59.
CHECK IF SYMPTOM APPEARS.
Does the symptom appear when electrical
equipment switches (such as headlamp)
are operated?
Ye s
ENo
Go toin Diagnostic
Procedure 12, BR-81.
CHECK WHEEL SENSOR.
Check wheel sensor shield ground. For
location of shield ground, refer to wiring
diagram and ªHARNESS LAYOUTº in EL
section.
OK
ENG
Repair wheel sensor.
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.
Note: ABS may operate and cause vibration under any of the
following conditions.
Diagnostic Procedure 11 (Long stopping
distance)
CHECK ABS PERFORMANCE
Disconnect ABS actuator and electric unit
connector and check whether stopping
distance is still long.
Ye s
ENo
Go toin Diagnostic
Procedure 12, BR-81.
Perform Preliminary Check and air bleed-
ing.
Note: Stopping distance may be larger than vehicles without
ABS when road condition is slippery.
SAT797AH
H
H
H
TROUBLE DIAGNOSES
BR-80

Diagnostic Procedure 12 (Unexpected pedal
action)
CHECK BRAKE PEDAL STROKE.
Check brake pedal stroke. Is stroke exces-
sively large?
No
EYe s
Perform Preliminary
Check, refer to BR-65.
CHECK BRAKE PERFORMANCE
Disconnect ABS actuator and electric unit
connector and check whether brake is
effective.
Ye s
ENo
Perform Preliminary Check,
refer to BR-65.
CHECK WARNING LAMP ACTIVATE.
Ensure warning lamp remains off while
driving.
OK
ENG
Carry out self-diagnosis.
Refer to BR-59.
CHECK WHEEL SENSOR.
1. Check wheel sensor connector for ter-
minal damage or loose connection.
2. Perform wheel sensor mechanical
check.
Refer to Diagnostic Procedure 4,
BR-73.
OK
ENG
Repair.
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.
CAUTION:Drive at low speed and brake smoothly to prevent
rear wheels locking.
SBR540A
YBR279
H
H
H
H
TROUBLE DIAGNOSES
BR-81

Diagnostic Procedure 13
SYMPTOM: ABS does not work.
Does the ABS warning lamp activate?
No
EYe s
Carry out self-diagnosis.
Refer to BR-59.
Go toin Diagnostic Procedure 12,
BR-81.
Note: ABS does not work when vehicle speed is under 10 km/h
(6 MPH).
Diagnostic Procedure 14
SYMPTOM: ABS works frequently.
CHECK WHEEL SENSOR.
1. Check wheel sensor connector for ter-
minal damage or loose connections.
2. Perform wheel sensor mechanical
check.
Refer to Diagnostic Procedure 4,
BR-73.
OK
ENG
Repair.
CHECK FRONT AXLES
Check front axles for excessive loose-
ness. Refer to FA section (ªFront Wheel
Bearingº, ªON-VEHICLE SERVICEº).
OK
ENG
Repair.
Go toin Diagnostic Procedure 12,
BR-81.
H
H
H
TROUBLE DIAGNOSES
BR-82

General Specifications
Applied modelWagon (LWB) Hard Top (SWB) Wagon (LWB) Hard Top (SWB)
Without ABS With ABS
Front brakeLD28VA
Brake model
Cylinder bore diameter
mm (in)43 (1.69)
Pad mm (in)
length x width x thickness144.85 x 48.5 x 15.5
(5.70 x 1.90 x 0.61)
Rotor outer mm (in)
diameter x thickness27.7 x 26.1
(10.91 x 1.02)
Drum brakeLT28
Brake model
Cylinder bore diameter
mm (in)23.8 (0.94) 22.0 (0.87) 20.6 (0.81)
Lining mm (in)
Length x width x thickness
Leading 111 x 55 x 8.95 (4.37 x 2.17 x 0.35)
Trailing 114 x 55 x 3.95 (4.49 x 2.17 x 0.16)
Drum inner mm (in)
Diameter280 (11.02)
Master cylinder mm (in)
Cylinder bore diameter 25.4 (1.0)
Control valve
Valve model Load Sensing Valve Ð
Split point [kPa (bar, kg/cm
2, psi)] x
reducing ratioVariable x 0.23 Variable x 0.15 Ð
Brake booster
Booster model Lucas LSC 115 (8²+9²)
Diaphragm diameter
mm (in)Primary: 203.2 (8)
Secondary: 228.6 (9)
Specified brake fluidDOT 4
SERVICE DATA AND SPECIFICATIONS (SDS)
BR-84

Detailed Measurement Points
Points Detailed pointsCoordinates mm (in)
ªXº ªYº ªZº
q
Aqa
SBF274B
Body mounting
bracket hole450.0
(17.72)þ488.5
(þ19.23)58.0
(2.28)
q
Dqd605.0
(23.82)597.5
(23.52)4.7
(0.18)
q
Eqe593.5
(23.37)1,537.0
(60.51)10.0
(0.39)
q
Gqg
W:
600.0
(23.62)W:
2,135.0
(84.06)W:
140.2
(5.52)
q
Kqk593.5
(23.37)
W:
3,477.5
(136.91)
H:
2,997.5
(118.01)195.5
(7.70)
q
Bqb
NBF032
Front shock
absorber bracket
mounting hole442.0
(17.40)þ16.0
(þ0.63)196.5
(7.74)
q
Cqc
NBF033
Compression rod
mounting hole362.6
(14.28)290.0
(11.42)þ158.9
(þ6.26)
q
1: Coordinate indicated isLH,RHcoordinate is -LHcoordinate.
E.g. ifLHcoordinate is: 698.5,RHcoordinate is: þ698.5.
BODY (ALIGNMENT)
Alignment (Cont'd)
BT-57

Description
The ECM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the engine.
On Board Diagnosis Logic
Malfunction is detected when ... Check Items (Possible Cause)
IAn excessively high or low voltage from the absolute pressure
sensor (built-into ECM) is sent to ECM.IECM
DTC Confirmation Procedure
WITH CONSULT-II
1) Turn ignition switch ªONº.
2) Select ªDATA MONITORº mode with CONSULT-II.
3) Start engine and wait at least 2 seconds.
4) If DTC is detected, go to ªDiagnostic Procedureº, EC-201.
WITHOUT CONSULT-II
1) Turn ignition switch ªONº and wait at least 2 seconds.
2) Start engine and wait at least 2 seconds.
3) Turn ignition switch ªOFFº, wait at least 5 seconds and then turn
ªONº.
4) Perform ªDiagnostic Test Mode II (Self-diagnostic results)º with
ECM.
5) If DTC is detected, go to ªDiagnostic Procedureº, EC-201.
SEC220B
SEF817Y
DTC 0802 ECM 10ZD30DDTi
EC-200