brake NISSAN PRIMERA 1999 Electronic Repair Manual

Cross-sectional View Ð RE0F06ANCAT0011
SAT668J Primary pulley
Steel belt
Sun gear
Side cover
Internal gear
Secondary pulley
Final gearDifferential caseSpeedometer drive gear Idler gear Reduction gear Taper roller bearingOutput gear Parking gear Input shaft Torque converter Converter housing
Oil pump
Forward clutch Reverse brake
Planet carrier
OVERALL SYSTEM
Cross-sectional View Ð RE0F06A
AT-11

TCM FUNCTION=NCAT0014S03The function of the TCM is to:
IReceive input signals sent from various switches and sensors.
IDetermine required line pressure, shifting point and lock-up operation.
ISend required output signals to the step motor and the respective solenoids.
INPUT/OUTPUT SIGNAL OF TCMNCAT0014S04
Sensors and actuators Function
InputPNP switch Detects select lever position and sends a signal to TCM.
Throttle position sensor Detects throttle valve position and sends a signal to TCM.
Closed throttle position switch Detects throttle valve's fully-closed position and sends a signal to TCM.
Wide open throttle position switchDetects a throttle valve position of greater than 1/2 of full throttle and
sends a signal to TCM.
Engine speed signal From ECM.
CVT fluid temperature sensor Detects transmission fluid temperature and sends a signal to TCM.
CVT fluid pressure sensor Detects transmission fluid pressure and sends a signal to TCM.
Primary speed sensor Detects primary pulley rpm and sends a signal to TCM.
Secondary speed sensor Detects secondary pulley rpm and sends a signal to TCM.
Stop lamp switchSends a signal to the TCM relaying the operation condition of the brake
pedal.
Sport mode switchSends a signal to the TCM relaying the operation condition of the sport
mode switch.
Indicator control unit*1Sends a signal to the TCM operation condition of the manual mode switch
in control device.
ABS control unit Sends a signal to the TCM operation condition of the ABS.
OutputStep motor Regulates pulley position in relation to a signal sent from TCM.
Line pressure solenoid valveRegulates (or decreases) line pressure suited to driving conditions in rela-
tion to a signal sent from TCM.
Torque converter clutch solenoid
valveRegulates (or decreases) lock-up pressure suited to driving conditions in
relation to a signal sent from TCM.
CVT indicator (warning) lamp*2 Shows TCM faults, when CVT control components malfunction.
SPORT indicator lamp*3 Shows the operation condition of the SPORT mode switch. *3
Indicator control unit *1Receives the information of gear position on manual mode from TCM, and
sends a signal to indicator.
*1: Hyper CVT M6 models only
*2: Hyper CVT M6 models
*3: Hyper CVT models
OVERALL SYSTEM
Control System (Cont'd)
AT-14

Item DisplayMonitor item
Description Remarks
TCM input
signalsMain
signals
Gear position GEAR
ÐXIGear position (when
use manual mode) data
used for computation by
TCM, is displayed.Ð
Selector lever position SLCT LVR POSI
ÐXISelector lever position
data, used for computa-
tion by TCM, is dis-
played.IA specific value used for
control is displayed if fail-
safe is activated due to
error.
Vehicle speed VEHICLE
SPEED
[km/h] or [mph]ÐXIVehicle speed data,
used for computation by
TCM, is displayed.Ð
Throttle position THROTTLE
POSI
[/8]ÐXIThrottle position data,
used for computation by
TCM, is displayed.IA specific value used for
control is displayed if fail-
safe is activated due to
error.
Line pressure duty LINE PRES
DTY
[%] Ð XIControl value of line
pressure solenoid valve,
computed by TCM from
each input signal, is
displayed.Ð
Torque converter clutch
solenoid valve dutyTCC S/V DUTY
[%]
ÐXIControl value of torque
converter clutch sole-
noid valve, computed
by TCM from each input
signal, is displayed.Ð
Self-diagnosis display
lamp
(SPORT or CVT indicator
lamp)PAT MONI
LAMP
[ON/OFF]ÐXIControl status of
SPORT or CVT indica-
tor lamp is displayed.Ð
CVT fluid pressure sensor LINE PRES-
SURE [V] X ÐICVT fluid pressure sen-
sor signal voltage is
displayed.Ð
Primary pulley speed
sensorI/P PULLY SPD
[rpm]
XXIPrimary pulley speed
computed from signal of
primary pulley speed
sensor is displayed.Ð
Secondary pulley speed
sensorO/P PULLY SPD
[rpm]
ÐÐISecondary pulley speed
computed from signal of
secondary speed sen-
sor is displayed.Ð
Stop lamp switch BRAKE SW
[ON/OFF] X ÐION/OFF position signal
of stop lamp switch is
displayed.Ð
Idle judgement CLSD THL
POSI [ON/OFF] Ð ÐIIdle status judged from
throttle position sensor
signal is displayed.Ð
ABS signal ABS SIGNAL
[ON/OFF] X ÐIABS operation signal
(ON/OFF) from ABS
control unit is displayed.Ð
Manual mode switch MANU MODE
SW [ON/OFF] X ÐION/OFF position signal
of manual mode switch
is displayed.Ð
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont'd)
AT-22

WORK SUPPORT MODE WITH CONSULT-II
1. Turn ignition switch ªOFFº.
2. Connect CONSULT-II to Data link connector. Data link connec-
tor is located in left side dash panel.
3. Turn ignition switch ªONº.
4. Touch ªSTARTº.
5. Touch ªCVTº.
6. Touch ªWORK SUPPORTº.
7. Touch ªENGINE BRAKE ADJUSTMENTº.
8. Touch ªSTARTº.
NRS071 Data link connector
SAT586J
SAT651J
SAT732J
SAT933J
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont'd)
AT-24

9. Set ªENGINE BRAKE LEVELº by touching ªUPº or ªDOWNº.
ENGINE BRAKE LEVEL
0: Initial set value (Engine brake level control is
activated)
OFF: Engine brake level control is disactivated.
10. Turn ignition switch ªOFFº, wait at least 5 seconds and then
turn ignition switch ªONº.
11. Engine brake level set is completed.
CAUTION:
Mode of ª+1º ª0º ª-1º ª-2º ªOFFº can be selected by pressing
the ªUPº ªDOWNº on CONSULT screen. However, do not
select mode other than ª0º and ªOFFº. If the ª+1º or ª-1º or
ª-2º is selected, that might cause the abnormality of drivabil-
ity.
DIAGNOSTIC PROCEDURE WITHOUT CONSULT-IINCAT0022S07OBD Self-diagnostic Procedure (With GST)NCAT0022S0701Refer to EC section [ªGeneric Scan Tool (GST)º, ªON BOARD
DIAGNOSTIC SYSTEM DESCRIPTIONº].
OBD Self-diagnostic Procedure (No Tools)NCAT0022S0702
Refer to EC section [ªMalfunction Indicator (MI)º, ªON BOARD
DIAGNOSTIC SYSTEM DESCRIPTIONº].
TCM Self-diagnostic Procedure (No Tools)=NCAT0022S0703Preparation
1. Turn ignition switch to ªOFFº position.
2. Disconnect the throttle position switch harness connector.
3. Turn ignition switch to ªONº position.
4. Check continuity of the closed throttle position switch.
Continuity should exist.
(If continuity does not exist, check throttle opener and
closed throttle position switch. Then increase vacuum
until closed throttle position switch shows continuity.)
5. Connect the throttle position switch harness connector.
6. Warm up the engine.
7. Turn the ignition switch from ON to OFF two more times, and
then turn to OFF.
8. In the ªPº position of the selector lever, turn the ignition switch
ON, and verify that the CVT warning lamp turns on for about
2 seconds.
9. Turn the ignition switch OFF.
10. Press the brake pedal, and shift the selector lever to the ªDº
position.
11. Turn the ignition switch ON.
12. Release the brake, and shift the selector lever to the ªLº posi-
tion.
13. Fully depress both brake and accelerator pedals all the way to
the floor. Without releasing the brake and accelerator pedals,
shift the selector lever to the ªDº position.
14. Read the display from the CVT warning lamp to complete the
diagnosis.
SAT934J
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CONSULT-II (Cont'd)
AT-25

Diagnostic Worksheet=NCAT0023S0102
1.lRead the Fail-safe and listen to customer complaints. AT-6
2.lCHECK CVT FLUIDAT-34
lLeakage (Follow specified procedure)
lFluid condition
lFluid level
3.lPerform STALL TEST and LINE PRESSURE TEST. AT-34, 35
lStall test Ð Mark possible damaged components/others.
lForward clutchlReverse brake
lEngine
lLine pressure is low
lLine Pressure test Ð Suspected parts:
4.lPerform all ROAD TEST and mark required procedures. AT-36
4-1. Check before engine is started.AT-37
lSELF-DIAGNOSTIC PROCEDURE Ð Mark detected items.
lPNP switch, AT-48.
lCVT fluid temperature sensor, AT-54.
lVehicle speed sensor (Secondary speed sensor), AT-62.
lEngine speed signal, AT-66.
lTorque converter clutch solenoid valve, AT-69.
lLine pressure solenoid valve, AT-74.
lStep motor, AT-86, 91.
lCVT fluid pressure sensor, AT-94.
lThrottle position sensor, AT-79.
lStop lamp and throttle position switches.
lCVT fluid temperature sensor and TCM power source, AT-54.
lPrimary speed sensor, AT-59.
lPNP switch, stop lamp switch, throttle position switch AT-105.
lBattery
lOthers
5.lFor self-diagnosis NG items, inspect each component. Repair or replace the damaged parts. AT-19
6.lPerform all ROAD TEST and re-mark required procedures. AT-36
7.lPerform the Diagnostic Procedures for all remaining items marked NG. Repair or replace the damaged
parts.
Refer to the Symptom Chart when you perform the procedures. (The chart also shows some other possible
symptoms and the component inspection orders.)AT-41
AT-54
8.lErase DTC from TCM and ECM memories. AT-16
TROUBLE DIAGNOSIS Ð INTRODUCTION
Introduction (Cont'd)
AT-31

CVT Fluid CheckNCAT0025FLUID LEAKAGE CHECKNCAT0025S011. Clean area suspected of leaking. Ð for example, mating sur-
face of converter housing and transmission case.
2. Start engine, apply foot brake, place selector lever in ªDº posi-
tion and wait a few minutes.
3. Stop engine.
4. Check for fluid leakage.
FLUID CONDITION CHECKNCAT0025S02
Fluid color Suspected problem
Dark or black with burned odor Wear of frictional material
Milky pink Water contamination Ð Road water
entering through filler tube or breather
Varnished fluid, light to dark brown and
tackyOxidation Ð Over or under filling, Ð
Overheating
FLUID LEVEL CHECKNCAT0025S03Refer to MA section (ªChecking CVT Fluidº, ªCHASSIS AND BODY
MAINTENANCEº).
Stall TestNCAT0026STALL TEST PROCEDURENCAT0026S011. Check CVT fluid and engine oil levels. If necessary, add.
2. Drive vehicle for approx. 10 minutes or until engine oil and CVT
fluid reach operating temperature.
CVT fluid operating temperature:
50 - 80ÉC (122 - 176ÉF)
SAT767B
SAT288G Fluid leakage
SAT638A
SAT647B
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
CVT Fluid Check
AT-34

3. Set parking brake and block wheels.
4. Install a tachometer where it can be seen by driver during test.
IIt is good practice to mark the point of specified engine
rpm on indicator.
5. Start engine, apply foot brake, and place selector lever in D
position.
6. Accelerate to wide open throttle gradually while applying foot
brake.
7. Quickly note the engine stall revolution and immediately
release throttle.
IDuring test, never hold throttle wide open for more than 5
seconds.
Stall revolution:
2,350 - 2,850 rpm
8. Move selector lever to ªNº position.
9. Cool off CVT fluid.
IRun engine at idle for at least one minute.
Line Pressure TestNCAT0027LINE PRESSURE TEST PORTSNCAT0027S01Location of line pressure test ports are shown in the illustration.
IAlways replace pressure plugs as they are self-sealing
bolts.
LINE PRESSURE TEST PROCEDURENCAT0027S021. Check CVT fluid and engine oil levels. If necessary, add fluid
or oil.
2. Drive vehicle for approx. 10 minutes or until engine oil and CVT
fluid reach operating temperature.
CVT fluid operating temperature:
50 - 80ÉC (122 - 176ÉF)
SAT513G
SAT514G Less
than
5 sec.
SAT771B
SAT670J Line pressure test port
SAT647B
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Stall Test (Cont'd)
AT-35

3. Install pressure gauge to corresponding line pressure port.
4. Set parking brake and block wheels.
IContinue to depress brake pedal fully while line pressure
test is being performed at stall speed.
5. Start engine and measure line pressure at idle and stall speed.
IWhen measuring line pressure at stall speed, follow the
stall test procedure.
Line pressure: Refer to SDS, AT-120.
Road TestNCAT0028DESCRIPTIONNCAT0028S01IThe purpose of the test is to determine overall performance of
CVT and analyze causes of problems.
IThe road test consists of the following three parts:
1. Check before engine is started
2. Cruise test
IBefore road test, familiarize yourself with all test procedures
and items to check.
IConduct tests on all items until specified symptom is found.
Troubleshoot items which check out No Good after road test.
Refer to ªON BOARD DIAGNOSTIC SYSTEM DESCRIP-
TIONº and ªTROUBLE DIAGNOSIS FOR SYMPTOMSº,
AT-15, AT-26 and AT-110.
SAT513G
SAT493G
SAT692J
ROAD TEST PROCEDURE
1. Check before engine is started.
2. Cruise test.
SAT496G
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Line Pressure Test (Cont'd)
AT-36

Terminal
No.Wire color Item ConditionJudgement
standard
41 GYThrottle position
sensor
When depressing accelerator pedal
slowly after warming up engine.
(Voltage rises gradually in response
to throttle position.)Fully-closed
throttle:
Approximately
0.3V
Fully-open
throttle:
Approximately 3V
42 B/WThrottle position
sensor
(Ground)ÐÐ
45 R/G Stop lamp switchWhen depressing brake pedalBattery voltage
When releasing brake pedalApprox. 0V
46 P/LCVT fluid pres-
sure sensor
(Power source)Ð4.5 - 5.5V
47 Y/PUCVT fluid tem-
perature sensorWhen CVT fluid temperature is
20ÉC (68ÉF).Approximately
1.5V
When CVT fluid temperature is
80ÉC (176ÉF).Approximately
0.5V
48 B Ground ÐÐ
*1: This terminal is connected to the ECM.
*2: These terminals are connected to the Data link connector for CONSULT-II.
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
TCM Terminals and Reference Value (Cont'd)
AT-44