NISSAN ALMERA N16 2001 Electronic Repair Manual

5. Pedal Vibration and Noise=NJBR0108
1 INSPECTION START
Pedal vibration and noise inspection
SAT797A
©GO TO 2.
2 CHECK SYMPTOM
1. Apply brake.
2. Start engine.
Does the symptom appear only when engine is started?
Ye s©Carry out self-diagnosis. Refer to BR-58.
No©GO TO 3.
3 RECHECK SYMPTOM
Does the symptom appear when electrical equipment switches (such as headlamp) are operated?
Ye s©GO TO 4.
No©Go to ª3. CHECK WARNING LAMP INDICATIONº in ª2. Unexpected Pedal Actionº,
BR-80.
4 CHECK WHEEL SENSOR
Check wheel sensor shield ground. For location of shield ground, refer to wiring diagram and ªHARNESS LAYOUTº in EL
section.
Is wheel sensor shield grounded properly?
Ye s©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.
No©Repair.
NOTE:
ABS may operate and cause vibration under any of the following
conditions.
+Applying brake gradually when shifting or operating clutch.
+Low friction (slippery) road.
+High speed cornering.
+Driving over bumps and pot holes.
+Engine speed is over 5,000 rpm with vehicle stopped.
TROUBLE DIAGNOSES FOR SYMPTOMSABS
5. Pedal Vibration and Noise
BR-83

6. ABS Warning Lamp Does Not Come On
When Ignition Switch Is Turned On
=NJBR0109
1 INSPECTION START
Warning lamp circuit inspection
SBR762E
©GO TO 2.
2 CHECK FUSE
Check 10A fuse No. 30 for warning lamp. For fuse layout, refer to ªPOWER SUPPLY ROUTINGº in EL section.
Is fuse OK?
Ye s©GO TO 3.
No©Replace fuse.
3 CHECK ABS CONTROL UNIT POWER SUPPLY CIRCUIT
1. Install 10A fuse.
2. Disconnect ABS actuator and electric unit connector.
3. Check voltage between control unit connector terminal 10 and ground after turning ignition switch ªONº.
SBR628E
Does battery voltage exist after turning ignition switch ªONº?
Ye s©GO TO 5.
No©GO TO 4.
TROUBLE DIAGNOSES FOR SYMPTOMSABS
6. ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On
BR-84

4 CHECK WARNING LAMP INDICATION
Disconnect ABS actuator and electric unit connector.
SBR759E
Does the ABS warning lamp activate?
Ye s©GO TO 6.
No©GO TO 5.
5 CHECK HARNESS FOR SHORT
1. Disconnect ABS actuator and electric unit connector.
2. Check voltage between ABS actuator and electric unit connector terminal 10 and ground.
SBR144EF
Does battery voltage exist?
Ye s©Check combination meter. Refer to WARNING LAMPS in EL section.
No©Repair harness and connectors between fuse and ABS actuator and electric unit connec-
tor terminal 10.
6 CHECK HARNESS CONNECTOR
Check ABS actuator and electric unit pin terminals for damage or connection of ABS actuator and electric unit harness
connector. Reconnect ABS actuator and electric unit harness connector. Then reset.
OK©INSPECTION END
NG©Replace ABS actuator and electric unit.
TROUBLE DIAGNOSES FOR SYMPTOMSABS
6. ABS Warning Lamp Does Not Come On When Ignition Switch Is Turned On (Cont'd)
BR-85

7. ABS Warning Lamp Stays On When Ignition
Switch Is Turned On
=NJBR0110
1 INSPECTION START
ABS control unit inspection
SBR763E
©GO TO 2.
2 CHECK WARNING LAMP
1. Disconnect ABS actuator and electric unit connector.
2. Connect suitable wire between ABS actuator and electric unit connector terminal 10 and ground.
SBR146EE
Does warning lamp activate?
Ye s©GO TO 3.
No©Repair combination meter. Check the following.
+Harness connector E1
+Harness for open or short between ABS actuator and electric unit and fuse
If NG, repair harness or connector.
3 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.
OK©INSPECTION END
NG©GO TO 4.
TROUBLE DIAGNOSES FOR SYMPTOMSABS
7. ABS Warning Lamp Stays On When Ignition Switch Is Turned On
BR-86

4 CHECK ABS MOTOR GROUND
1. Turn ignition switch ªOFFº.
2. Disconnect ABS actuator and electric unit connector.
3. Check continuity between ABS actuator and electric unit connector terminal 16 and ground.
SBR147EC
Does continuity exist?
Ye s©Replace ABS actuator and electric unit.
No©Check the following.
+Harness connector E1
+Harness for open or short between ABS actuator and electric unit and ground
If NG, repair harness or connector.
TROUBLE DIAGNOSES FOR SYMPTOMSABS
7. ABS Warning Lamp Stays On When Ignition Switch Is Turned On (Cont'd)
BR-87

NJBR0111
CAUTION:
Be careful not to damage sensor edge and sensor rotor teeth.
When removing the front or rear wheel hub assembly, first
remove the ABS wheel sensor from the assembly. Failure to
do so may result in damage to the sensor wires making the
sensor inoperative.
Wheel SensorsNJBR0111S01
SBR902D
REMOVAL AND INSTALLATIONABS
BR-88

ABS Actuator and Electric UnitNJBR0111S10
SBR630E
REMOVALNJBR0111S10011. Disconnect battery cable.
2. Drain brake fluid.
3. Remove mounting bracket fixing bolts and nuts.
4. Disconnect connector, brake pipes and remove fixing nuts.
INSTALLATIONNJBR0111S1002CAUTION:
After installation, refill brake fluid. Then bleed air.
1. Connect brake pipes temporarily.
2. Tighten fixing bolts and nuts.
3. Tighten brake pipes.
4. Connect connector and battery cable.
REMOVAL AND INSTALLATIONABS
ABS Actuator and Electric Unit
BR-89

SBR984C
SBR873CA
Sensor RotorNJBR0111S02REMOVALNJBR0111S02011. Remove the drive shaft and rear wheel hub. Refer to ªDrive
Shaftº and ªWheel Hubº in AX section.
2. Remove the sensor rotor using suitable puller, drift and bear-
ing replacer.
SBR985C
INSTALLATIONNJBR0111S0202Install the sensor rotor. For front sensor rotor, use hammer and
wooden block. For rear sensor rotor, use suitable drift and press.
+Always replace sensor rotor with new one.
SBR986C
+Pay attention to the dimension of rear sensor rotor as show in
figure.
h: 24.8 - 25.8 mm (0.976 - 1.016 in)
REMOVAL AND INSTALLATIONABS
Sensor Rotor
BR-90

General SpecificationsNJBR0077Unit: mm (in)
Engine QG15DE Except QG15DE
ABS Without With Without
Front brakeBrake model CL25VG CL25VBG
Cylinder bore diameter 57.2 (2.252)
Pad
Length´width´thick-
ness113.1´45.5´11.0
(4.45´1.791´0.433)108.8´47.7´11.0 (4.28´1.878´0.433)
Rotor outer diameter´
thickness257´22 (10.12´
0.87)280´22 (11.02´0.87)
ABS Without With Without
Rear brakeBrake model LT20N CL11HEG (Ball & Ramp type) CL9HCG
Cylinder bore diameter 17.46 (0.6874) 38.2 (1.504) 33.96 (1.3370)
Lining or pad
Length´width´thick-
ness195´35´4.5 (7.68´
1.38´0.18)79.8´38.5´9.3 (3.142´1.516´0.37)
Drum inner diameter or
rotor outer diameter´
thickness203.2 (8.00) 258´10 (10.16´0.39)
Master cylinder Cylinder bore diameter 23.81 (15/16)
Control valveValve model Dual proportioning valve [without ABS]
Split point
kPa (bar, kg/cm
2, psi)´
reducing ratio3.43 (34.3´35´497)´0.4
Brake boosterBooster model V255 S255 V255
Diaphram
diameterPrimary 255 (10.04)
Secondary Ð
Specified brake fluidDOT 4
Disc BrakeNJBR0078Unit: mm (in)
Brake model CL25VG, CL25VBG CL9HCG, CL11HEG
Pad wear limit Minimum thickness 2.0 (0.078) 2.0 (0.079)
Rotor repair limitMaximum runout 0.07 (0.0028) 0.07 (0.0028)
Minimum thickness 20.0 (0.787) 9 (0.35)
Drum BrakeNJBR0135Unit: mm (in)
Brake modelLT20N
Lining wear limit Minimum thickness 1.5 (0.059)
Drum repair limitMaximum inner diameter 204.5 (8.051)
Maximum out-of-round 0.03 (0.0012)
SERVICE DATA AND SPECIFICATIONS (SDS)
General Specifications
BR-91

Brake PedalNJBR0079Unit: mm (in)
Free height ªHº*LHDM/T 156.0 - 166.0 (6.14 - 6.54)
A/T 165.0 - 175.0 (6.54 - 6.89)
RHDM/T 155.0 - 165.0 (6.10 - 6.50)
A/T 164.0 - 174.0 (6.46 - 6.85)
Clearance ªCº between pedal stopper and threaded end of stop lamp switch or brake switch 0.74 - 1.96 (0.0291 - 0.0772)
*: Measured from surface of dash panel to surface of pedal pad
Parking BrakeNJBR0080
TypeCenter lever
Number of notches
[under force of 196 N (20 kg, 44 lb)]5-6
Number of notches
when warning lamp switch comes on1
SERVICE DATA AND SPECIFICATIONS (SDS)
Brake Pedal
BR-92