1999 NISSAN PRIMERA sensor

RemovalNCAT0115CAUTION:
Before separating transaxle from engine, remove the crank-
shaft position sensor (OBD) from transaxle. Be careful not to
damage sensor.
1. Remove battery and bracket.
2. Remove air duct between throttle body and air cleaner.
3. Disconnect control valve harness connector, PNP switch har-
ness connector, secondary speed sensor harness connector,
dropping resistor harness connector, primary speed sensor
harness connector and body earth harness connector.
4. Remove crankshaft position sensor (OBD) from transaxle.
5. Drain CVT fluid from transaxle.
6. Disconnect control cable from transaxle.
7. Remove exhaust front tube. Refer to FE section (ªEXHAUST
SYSTEMº).
8. Remove drive shafts. Refer to FA section (ªDrive Shaftº,
ªFRONT AXLEº).
9. Disconnect oil cooler hoses.
10. Remove starter motor from transaxle.
Tighten bolts to specified torque.
:41-52N×m (4.2 - 5.3 kg-m, 30 - 38 ft-lb)
11. Support transaxle with a jack.
12. Remove center member.
ITighten center member fixing bolts to specified torque, Refer
to EM section (ªENGINE REMOVALº).
13. Remove rear plate cover.
14. Remove torque converter bolts.
Rotate crankshaft to gain access to securing bolts.
15. Support engine with a jack.
16. Remove transaxle mount bolt. Refer to EM section (ªENGINE
REMOVALº).
17. Remove oil cooler tube (outlet side).
18. Remove transaxle.
InspectionNCAT0236IWhen connecting torque converter to transaxle, measure dis-
tance ªAº to be certain that they are correctly assembled.
Distance ªAº:
15.9 mm (0.626 in) or more
SAT664J
SAT665J
REMOVAL AND INSTALLATION
Removal
AT-116

Components
NAT311 Fluid level gauge
Fluid charging pipe
5.0 - 6.8 (0.5 - 0.7, 44 - 60)
PNP SW5.0 - 6.8
(0.5 - 0.7, 44 - 60)
Dropping resistor
Secondary pulley speed sensor
5.0 - 6.8
(0.5 - 0.7, 44 - 60)
Speedometer pinion
O-ring
O-ringDifferential
oil seal
Torque converter
Input shaft O-ring
Oil pump
oil seal
CVT assy
Oil pan installation bolt (18)
6.9 - 8.8 (0.7 - 0.9, 61 - 78)
: N´m (kg-m, in-lb)
: N´m (kg-m, ft-lb)
: CVT fluid NS-1Oil panMagnetDrain bolt
30 - 39 (3.0 - 4.0, 22 - 29)
Gasket
Oil pan gasket
4.5 - 5.7 (0.45 - 0.59, 40 - 50)Tube (inlet)
40-58
(4.0 - 6.0,
30 - 43)
Copper washer
4.5 - 5.7
(0.45 - 0.59, 40 - 50) Tube (outlet)
4.5 - 5.7 (0.45 - 0.59, 40 - 50)Copper washer40 - 58 (4.0 - 6.0, 30 - 43)Primary pulley
speed sensor
5.0 - 6.8 (0.5 - 0.7, 44 - 60)
O-ring
O-ring
4.5 - 5.7 (0.45 - 0.59, 40 - 50)
Differential
oil seal
SEC. 310×311×312×319
REMOVAL AND INSTALLATION
Components
AT-119

Inspection................................................................. 36
Assembly ................................................................. 37
Installation ................................................................ 39
REAR DISC BRAKE TYPE 2...................................... 40
Component .............................................................. 40
Pad Replacement .................................................... 40
Removal ................................................................... 42
Disassembly............................................................. 42
Inspection................................................................. 42
Installation ................................................................ 43
REAR DRUM BRAKE................................................. 44
Components............................................................. 44
Removal ................................................................... 44
Inspection - Wheel Cylinder .................................... 45
Wheel Cylinder Overhaul......................................... 46
Inspection - Drum .................................................... 46
Inspection - Lining ................................................... 46
Installation ................................................................ 46
PARKING BRAKE CONTROL.................................... 48
Removal and Installation ......................................... 48
Inspection................................................................. 49
Adjustment ............................................................... 49
ANTI-LOCK BRAKE SYSTEM.................................... 50
Purpose.................................................................... 50
Operation ................................................................. 50
ABS Hydraulic Circuit .............................................. 50
System Components ............................................... 51
System Description .................................................. 51
Removal and Installation ......................................... 53
TROUBLE DIAGNOSES............................................. 57
How to Perform Trouble Diagnoses for Quick
and Accurate Repair ................................................ 57
Preliminary Check.................................................... 59
Component Parts and Harness Connector
Location ................................................................... 60
Circuit Diagram for Quick Pinpoint Check............... 61Wiring Diagram - ABS - ........................................... 62
Self-diagnosis (Only models with data link
connector terminal No. 8) ........................................ 67
TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION............................................................. 69
CONSULT-II ............................................................. 69
CONSULT-II Inspection Procedure.......................... 70
Ground Circuit Check .............................................. 75
TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION............................................................. 76
Malfunction Code/Symptom Chart........................... 76
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC
ITEMS........................................................................... 77
Diagnostic Procedure 1 (Wheel sensor or rotor) .... 77
Diagnostic Procedure 2 (ABS actuator solenoid
valve and solenoid valve relay) ............................... 79
Diagnostic Procedure 3 (Motor Relay or motor) ..... 81
Diagnostic Procedure 4 (Low voltage) .................... 83
Diagnostic Procedure 5 (Control unit) ..................... 84
TROUBLE DIAGNOSES FOR SYMPTOMS............... 85
Diagnostic Procedure 6 (ABS works frequently) ..... 85
Diagnostic Procedure 7 (Unexpected pedal
action) ...................................................................... 86
Diagnostic Procedure 8 (Long stopping distance) .. 86
Diagnostic Procedure 9 (ABS does not work.) ....... 87
Diagnostic Procedure 10 (Pedal vibration and
noise) ....................................................................... 87
Diagnostic Procedure 11 (ABS Warning lamp
does not come on when ignition switch is turned
ON) .......................................................................... 88
Diagnostic Procedure 12 (Warning lamp stays on
when ignition switch is turned ON).......................... 90
SERVICE DATA AND SPECIFICATIONS (SDS)........ 91
General Specifications ............................................. 91
Inspection and Adjustment ...................................... 92
When you read wiring diagrams:
lRead GI section, ªHOW TO READ WIRING DIAGRAMSº.
lSee EL section, ªPOWER SUPPLY ROUTINGº for power distribution circuit.
lSee EL section for NATS information and wiring diagram.
When you perform trouble diagnoses, read GI section, ªHOW TO FOLLOW FLOW
CHART IN TROUBLE DIAGNOSESº and ªHOW TO PERFORM EFFICIENT DIAGNOSIS
FOR AN ELECTRICAL INCIDENTº.
BR-2

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 system composition which is available to NISSAN MODEL P11 is as follows (The
composition varies according to the destination and optional equipment.):
lFor a frontal collision
The Supplemental Restraint System consists of driver air bag module (located in the center of the
steering 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.
lFor 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).
Information necessary to service the system safely is included in theRS sectionof this Service Manual.
WARNING:
lTo 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.
lImproper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and
Air Bag Module, see the RS section.
lDo 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 Brake System
lRecommended fluid is brake fluid ªDOT 4º.
lNever reuse drained brake fluid.
lBe careful not to splash brake fluid on painted areas.
lTo clean or wash all parts of master cylinder, disc brake
caliper and wheel cylinder, use clean brake fluid.
lNever use mineral oils such as gasoline or kerosene.
They will ruin rubber parts of the hydraulic system.
lUse flare nut wrench when removing and installing brake
tube.
lAlways torque brake lines when installing.
lBurnish the brake contact surfaces after refinishing or
replacing rotors, after replacing pads, or if a soft pedal
occurs at very low mileage.
Refer to ªBrake Burnishing Procedureº, ªCheck and
Adjustmentº, BR-7.
WARNING:
lClean brake pads with a waste cloth, then wipe with a
dust collector.
SBR686C Commercial service tool
PRECAUTIONS
BR-3

System Components
System Description
SENSOR
The sensor unit consists of a gear-shaped sensor rotor and an
electro-magnetic proximity detector. The proximity detector
(ªpick-upº) contains a bar magnet around which a coil is wound.
The detector is installed on the back side of the brake rotor. An
alternating voltage is generated in the coil of the proximity detec-
tor as each tooth of the rotor cuts the magnetic field of the
detector core. The frequency and amplitude of the voltage
increases in proportion to the rotational speed of the rotor.
CONTROL UNIT
The control unit determines the wheel rotating speed from the
signal sent from the sensor, a corresponding control signal is
then output from the control unit in the form of a DC current to
the actuator solenoid valve. The ABS control unit also controls
ON-OFF operation of the valve relay and motor relay. If any
electrical malfunction should be detected in the system, the con-
trol unit causes the warning lamp to light up. In this condition, the
ABS will be deactivated by the control unit, and the vehicle's
brake system reverts to normal operation.
NBR260 Warning light
Brake tube connector
Actuator
Front wheel sensorsControl unitRear wheel sensors
SBR124B Control unit
Magnet
.Sensor (proxi-
mity detector)
Magnetic flux
Tooth
V: Induced electromotive forceMoving time of one toothSensor rotor Coil Low carbon steel
NBR284 ABS warning light
ANTI-LOCK BRAKE SYSTEM
BR-51

Removal and Installation
CAUTION:
Be careful not to damage sensor edge and sensor rotor
teeth.
When removing the front or rear wheel hub assembly, dis-
connect the ABS wheel sensor from the assembly and move
it away. Failure to do so may result in damage to the sensor
or wiring making it inoperative.
FRONT WHEEL SENSOR
REAR WHEEL SENSOR
NBR176
18 - 24 (1.8 - 2.4, 13 - 18)
: N´m (kg-m, ft-lb)
NBR296
: N´m (kg-m, ft-lb)
25-33
(2.6 - 3.4, 18 - 24)
ANTI-LOCK BRAKE SYSTEM
BR-53

SENSOR ROTOR
Removal
1. Remove the drive shaft and rear wheel hub. Refer to FA, RA
section (ªDrive Shaftº, FRONT AXLEº and ªWheel Hubº,
REAR AXLEº).
2. Remove the sensor rotor using suitable puller, drift and bear-
ing replacer.
Installation
Install the sensor rotor. For front sensor rotor, use hammer and
wooden block. For rear sensor rotor, use suitable drift and press.
lAlways replace sensor rotor with new one.
lEnsure sensor rotor is completely flush with surface indicated
on drive shaft.
lPay attention to the flush position of rear sensor rotor as
shown in figure.
h: þ0.3 to +0.3 mm (þ0.012 to +0.012 in)
CONTROL UNIT
Location: Built-in ABS actuator.
When disconnecting the harness connector, pull the lever
as shown figure.
SBR984C Front sensor rotor
Drive shaft
SBR873CA Rear sensor rotor
Suitable drift
NBR196 Front sensor rotor
Wooden
block Flush
.NBR197 Rear sensor rotorPress
Suit-
able
drift
Sensor
rotor
Wheel hub h
NBR261 ABS control unit
harness connector
ABS control unitABS actuator
X
1
X PULL
ANTI-LOCK BRAKE SYSTEM
Removal and Installation (Cont'd)
BR-54

How to Perform Trouble Diagnoses for Quick
and Accurate Repair
INTRODUCTION
The ABS system has an electronic control unit to control major
braking functions. The control unit accepts input signals from
sensors and utilises the data to instantly drive the actuators. It is
essential that both input and output signals are correct and
stable. It is also important to check for conventional problems:
such as air leaks in booster lines, lack of brake fluid, or other
problems with the brake system.
It is much more difficult to diagnose a problem that occurs inter-
mittently rather than catastrophically. Most intermittent problems
are caused by poor electric connections or faulty wiring. In this
case, careful checking of suspicious circuits may help prevent
the unnecessary replacement of good parts.
A visual check may not be sufficient to find the cause of the
problems, so a road test should also be performed.
Before undertaking actual checks, take just a few minutes to talk
with a customer who approaches with a ABS complaint. The
customer is a very good source of information on such problems;
especially intermittent ones. Through the talks with the customer,
find out what symptoms are present and under what conditions
they occur.
Start your diagnosis by looking for ªconventionalº problems first.
This is one of the best ways to troubleshoot brake problems on
an ABS controlled vehicle.
SEF233G
SEF234G
TROUBLE DIAGNOSES
BR-57