cruise control NISSAN TERRANO 2002 Service Repair Manual

Diagnosis by CONSULT-II
NOTICE
1. The CONSULT-II electrically displays shift timing and lock-up timing (that is, operation timing of each
solenoid).
Check for time difference between actual shift timing and the CONSULT-II display. If the difference is
noticeable, mechanical parts (except solenoids, sensors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) displayed on CONSULT-II and that indicated in Service Manual
may differ slightly. This occurs because of the following reasons:
IActual shift schedule has more or less tolerance or allowance,
IShift schedule indicated in Service Manual refers to the point where shifts start. Gear position displayed
on CONSULT-II indicates the point where shifts are completed.
3. Shift solenoid valve ªAº or ªBº is displayed on CONSULT-II at the start of shifting. Gear position is displayed
upon completion of shifting (which is computed by TCM).
4. Additional CONSULT-II information can be found in the Operation Manual supplied with the CONSULT-II
unit.
SELF-DIAGNOSTIC RESULT TEST MODE
Refer to AT-14.
DATA MONITOR DIAGNOSTIC TEST MODE
Item DisplayMonitor item
Description Remarks ECU
input
signalsMain
signals
Vehicle speed sensor 1
(A/T)
(Revolution sensor)VHCL/S SE×A/T
[km/h] or [mph]
XÐIVehicle speed computed from signal
of revolution sensor is displayed.When racing engine in ªNº or ªPº posi-
tion with vehicle stationary, CON-
SULT-II data may not indicate
0 km/h (0 MPH).
Vehicle speed sensor 2
(Meter)VHCL/S SE×MTR
[km/h] or [mph]
XÐIVehicle speed computed from signal
of vehicle speed sensor is dis-
played.Vehicle speed display may not be
accurate under approx. 10 km/h
(6 MPH). It may not indicate 0 km/h (0
MPH) when vehicle is stationary.
Throttle (accelerator)
position sensorTHRTL POS SEN
[V]XÐIThrottle (accelerator) position sen-
sor signal voltage is displayed.
A/T fluid temperature
sensorFLUID TEMP SE
[V]
XÐIA/T fluid temperature sensor signal
voltage is displayed.
ISignal voltage lowers as fluid tem-
perature rises.
Battery voltage BATTERY VOLT
[V]XÐISource voltage of TCM is displayed.
Engine speed ENGINE SPEED
[rpm]
XXIEngine speed, computed from
engine speed signal, is displayed.Engine speed display may not be
accurate under approx. 800 rpm. It
may not indicate 0 rpm even when
engine is not running.
Overdrive control switch OVERDRIVE SW
[ON/OFF]XÐION/OFF state computed from signal
of overdrive control SW is displayed.
P/N position switch P/N POSI SW
[ON/OFF]XÐION/OFF state computed from signal
of P/N position SW is displayed.
R position switch R POSITION SW
[ON/OFF]XÐION/OFF state computed from signal
of R position SW is displayed.
D position switch D POSITION SW
[ON/OFF]XÐION/OFF state computed from signal
of D position SW is displayed.
2 position switch 2 POSITION SW
[ON/OFF]XÐION/OFF status, computed from sig-
nal of 2 position SW, is displayed.
1 position switch 1 POSITION SW
[ON/OFF]XÐION/OFF status, computed from sig-
nal of 1 position SW, is displayed.
ASCD-cruise signal ASCD×CRUISE
[ON/OFF]
XÐIStatus of ASCD cruise signal is dis-
played.
ON ... Cruising state
OFF ... Normal running stateIThis is displayed even when no
ASCD is mounted.
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-20

DIAGNOSTIC WORKSHEET
1.lRead the Fail-safe and listen to customer complaints. AT-5
2.lA/T FLUID CHECK AT-27
lLeakage (Follow specified procedure)
lFluid condition
lFluid level
3.lPerform STALL TEST and LINE PRESSURE TEST. AT-27,
AT-30
lStall test Ð Mark possible damaged components/others.
lTorque converter one-way clutch
lReverse clutch
lForward clutch
lOverrun clutch
lForward one-way clutchlLow & reverse brake
lLow one-way clutch
lEngine
lLine pressure is low
lClutches and brakes except high
clutch and brake band are OK
lLine pressure test Ð Suspected parts:
4.lPerform all ROAD TEST and mark required procedures. AT-32
4-1. Check before engine is started. AT-33
lSELF-DIAGNOSTIC PROCEDURE Ð Mark detected items.
lVehicle speed sensor×A/T (Revolution sensor), AT-50.
lVehicle speed sensor×MTR, AT-54.
lThrottle (accelerator) position sensor, AT-60.
lShift solenoid valve A, AT-63.
lShift solenoid valve B, AT-66.
lOverrun clutch solenoid valve, AT-69.
lTorque converter clutch solenoid valve, AT-88.
lA/T fluid temperature sensor and TCM power source, AT-76.
lEngine speed signal, AT-80.
lLine pressure solenoid valve, AT-84.
lPark/neutral position, overdrive control, A/T check and throttle
(accelerator) position switches, AT-88.
lBattery
lOthers
4-2. Check at idle AT-35
l1. SPORT Indicator Lamp Does Not Come On, AT-92.
l2. SPORT or SNOW Indicator Lamp Does Not Come On, AT-95.
l3. O/D OFF Indicator Lamp Does Not Come On, AT-95.
l4. SPORT Indicator Lamp Does Not Come On, AT-96.
l5. Engine Cannot Be Started In ªPº And ªNº Position, AT-97.
l6. In ªPº Position, Vehicle Moves Forward Or Backward When Pushed, AT-97.
l7. In ªNº Position, Vehicle Moves, AT-98.
l8. Large Shock. ªNº,ªRº Position, AT-99.
l9. Vehicle Does Not Creep Backward In ªRº Position, AT-100.
l10. Vehicle Does Not Creep Forward In ªDº, ª2º Or ª1º Position, AT-101.
4-3. Cruise testAT-36,
AT-39
Part-1
l11. Vehicle Cannot Be Started From D
1, AT-102.
l12. A/T Does Not Shift: D
1,D2Or Does Not Kickdown: D4,D2, AT-103.
l13. A/T Does Not Shift: D
2,D3, AT-104.
l14. A/T Does Not Shift: D
3,D4, AT-105.
l15. A/T Does Not Perform Lock-up, AT-106.
l16. A/T Does Not Hold Lock-up Condition, AT-107.
l17. Lock-up Is Not Released, AT-107.
l18. Engine Speed Does Not Return To Idle (Light Braking D
4,D3), AT-108.
TROUBLE DIAGNOSIS Ð Introduction
Diagnostic Worksheet (Cont'd)
AT-24

CRUISE TEST Ð Part 1
Drive vehicle for approx. 10 minutes to
warm engine oil and ATF up to operating
temperature.
ATF operating temperature:
50 - 80ÉC (122 - 176ÉF)
1. Park vehicle on flat surface.
2. Set overdrive control switch to ªONº
position.
3. Move selector lever to ªPº position.
4. Start engine.
Move selector lever to ªDº position.
Accelerate vehicle by constantly depress-
ing accelerator pedal halfway.
Does vehicle start from D1?
Read gear position.
Ye s
ENo
Go to ª11. Vehicle Cannot
Be Started From D
1º,
AT-102.
Does A/T shift from D1to D2at the speci-
fied speed?
Read gear position, throttle open-
ing and vehicle speed.
Specified speed when shifting from
D
1to D2:
Refer to Shift schedule, AT-196.
Ye s
ENo
Go to ª12. A/T Does Not
Shift: D
1,D2Or Does
Not Kickdown: D
4,D2º,
AT-196.
Does A/T shift from D2to D3at the speci-
fied speed?
Read gear position, throttle posi-
tion and vehicle speed.
Specified speed when shifting from
D
2to D3:
Refer to Shift schedule, AT-104.
Ye s
ENo
Go to ª13. A/T Does Not
Shift: D
2,D3º, AT-104.
qA
(Go to next page.)
SAT774B
SAT775B
SAT495G
SAT401H
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TROUBLE DIAGNOSIS Ð Basic Inspection
Road Test (Cont'd)
AT-39

CRUISE TEST Ð Part 2
1. Confirm overdrive control switch is in
ªONº position.
2. Confirm selector lever is in ªDº position.
3. Accelerate vehicle by half throttle
again.
4. Does vehicle start from D
1?
Read gear position.
Ye s
ENo
Go to ª19. Vehicle Does
Not Start From D
1º,
AT-109.
1. Accelerate vehicle to 80 km/h (50
MPH) as shown in illustration.
2. Release accelerator pedal and then
quickly depress it fully.
3. Does A/T shift from D
4to D2as soon
as accelerator pedal is depressed fully?
Read gear position and throttle
position.
Ye s
ENo
Go to ª12. A/T Does Not
Shift: D
1,D2Or Does
Not Kickdown: D
4,D2º,
AT-103.
Does A/T shift from D2to D3at the speci-
fied speed?
Read gear position, throttle posi-
tion and vehicle speed.
Specified speed when shifting from
D
2to D3:
Refer to Shift schedule, AT-196.
Ye s
ENo
Go to ª13. A/T Does Not
Shift: D
2,D3º, AT-104.
1. Release accelerator pedal after shifting
from D
2to D3.
2. Does A/T shift from D
3to D4and does
vehicle decelerate by engine brake?
Read gear position, throttle posi-
tion and vehicle speed.
Ye s
ENo
Go to ª14. A/T Does Not
Shift: D
3,D4º, AT-105.
1. Decelerate to 10 km/h (6 MPH) with
accelerator pedal released and then
quickly depress it fully.
2. Does A/T shift from D
2to D1as soon
as accelerator pedal is depressed fully?
Ye s
ENo
Go to ª20. A/T Does Not
Shift: D
2,D1When
Depressing Accelerator
Pedalº, AT-110.
1. Stop vehicle.
2. Go to ªCruise test Ð Part 3º, AT-42.
SAT495G
SAT404H
SAT405H
SAT124I
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TROUBLE DIAGNOSIS Ð Basic Inspection
Road Test (Cont'd)
AT-41

CRUISE TEST Ð Part 3
1. Confirm overdrive control switch is in
ªONº position.
2. Confirm selector lever is in ªDº position.
Accelerate vehicle using half-throttle to D4.
Release accelerator pedal.
Set overdrive control switch to ªOFFº posi-
tion while driving in D
4.
Does A/T shift from D4to D3(O/D OFF)?Read gear position and vehicle
speed.
Ye s
ENo
Go to ª21. A/T Does Not
Shift: D
4,D3, When
Overdrive Control Switch
ªONº,ªOFFºº, AT-111.
Does vehicle decelerate by engine brake?
Ye s
ENo
Go to ª18. Engine Speed
Does Not Return To Idle
(Light Braking D
4,D3)º,
AT-108.
Move selector lever from ªDº to ª2º position
while driving in D
3(O/D OFF).
Does A/T shift from D3(O/D OFF) to 22?Read gear position.
Ye s
ENo
Go to ª22. A/T Does Not
Shift: D
3,22, When
Selector Lever ªDº,ª2º
Positionº, AT-111.
Does vehicle decelerate by engine brake?
Ye s
ENo
Go to ª18. Engine Speed
Does Not Return To Idle
(Light Braking D
4,D3)º,
AT-108.
1. Move selector lever from ª2º to ª1º posi-
tion while driving in 2
2.
2. Does A/T shift from 2
2to 11position?Read gear position.
Ye s
ENo
Go to ª23. A/T Does Not
Shift: 2
2,11, When
Selector Lever ª2º,ª1º
Positionº, AT-112.
Does vehicle decelerate by engine brake?
Ye s
ENo
Go to ª24. Vehicle Does
Not Decelerate By
Engine Brakeº, AT-112.
1. Stop vehicle.
2. Perform self-diagnosis. Refer to SELF-
DIAGNOSTIC PROCEDURE, AT-14.
SAT812A
SAT813A
SAT776BA
SAT791GA
SAT778B
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TROUBLE DIAGNOSIS Ð Basic Inspection
Road Test (Cont'd)
AT-42

11. Vehicle Cannot Be Started From D1
SYMPTOM:
Vehicle cannot be started from D1on Cruise test Ð Part 1.
Is 9. Vehicle Does Not Creep Backward In
ªRº Position OK?
Ye s
ENo
Go to 9. Vehicle Does Not
Creep Backward In ªRº
Position, AT-100.
Does self-diagnosis show damage to
vehicle speed sensor×A/T (revolution
sensor), shift solenoid valve A, B or
vehicle speed sensor×MTR after cruise
test?
No
EYe s
Check damaged circuit.
Refer to AT-50, AT-54,
AT-63 or AT-66.
Check throttle (accelerator) position sen-
sor. Refer to EC section [TROUBLE
DIAGNOSIS FOR ªTHROTTLE (ACCEL)
POSI SENº].
OK
ENG
Repair or replace throttle
(accelerator) position sen-
sor.
Check line pressure at stall point with
selector lever in ªDº position. Refer to
ªLine Pressure Testº, AT-30.
OK
ENG
1. Remove control valve
assembly. Refer to
AT-113.
2. Check the following
items:
IShift valve A
IShift valve B
IShift solenoid valve A
IShift solenoid valve B
IPilot valve
IPilot filter
3. Disassemble A/T.
4. Check the following
items:
IForward clutch assembly
IForward one-way clutch
ILow one-way clutch
IHigh clutch assembly
ITorque converter
IOil pump assembly
1. Remove oil pan.
2. Check A/T fluid condition.
OK
ENG
1. Remove control valve assembly. Refer
to AT-113.
2. Check the following items:
IShift valve A
IShift valve B
IShift solenoid valve A
IShift solenoid valve B
IPilot valve
IPilot filter
OKFOK
Check again.
OK
ENG
1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin
terminals for damage or
loose connection with
harness connector.
INSPECTION END
SAT832H
NAT262
SAT494G
SAT171B
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DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-102

14. A/T Does Not Shift: D3®D4
SYMPTOM:
IA/T does not shift from D3to D4at the specified speed.
IA/T must be warm before D
3to D4shift will occur.
Are 10. Vehicle Does Not Creep Forward
In ªDº, ª2º Or ª1º Position and 11. Vehicle
Cannot Be Started From D
1OK?
Ye s
ENo
Go to 10. Vehicle Does
Not Creep Forward In ªDº,
ª2º Or ª1º Position and 11.
Vehicle Cannot Be Started
From D
1, AT-101, AT-102.
Does self-diagnosis, after cruise test,
show damage to any of the following
circuits?
IPark/neutral position switch
IOverdrive control switch
IA/T fluid temperature sensor
IVehicle speed sensor×A/T (Revolu-
tion sensor)
IShift solenoid valve A or B
IVehicle speed sensor×MTR
No
EYe s
Check damaged circuit.
Refer to AT-50, AT-54,
AT-63, AT-66 or AT-88.
Check throttle (accelerator) position sen-
sor. Refer to EC section [TROUBLE
DIAGNOSIS FOR ªTHROTTLE (ACCEL)
POSI SENº].
OK
ENG
Repair or replace throttle
(accelerator) position sen-
sor.
1. Remove oil pan.
2. Check A/T fluid condition.
OK
ENG
1. Remove control valve
assembly. Refer to
AT-113.
2. Check the following
items:
IShift valve B
IOverrun clutch control
valve
IShift solenoid valve B
IPilot valve
IPilot filter
3. Disassemble A/T.
4. Check the following
items:
IServo piston assembly
IBrake band
ITorque converter
IOil pump assembly
1. Remove control valve assembly. Refer
to AT-113.
2. Check the following items:
IShift valve B
IOverrun clutch control valve
IShift solenoid valve B
IPilot valve
IPilot filter
OK
FOK
Check again.
OK
ENG
1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin
terminals for damage or
loose connection with
harness connector.
INSPECTION END
SAT833HA
NAT262
SAT171B
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DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-105

15. A/T Does Not Perform Lock-up
SYMPTOM:
A/T does not perform lock-up at the specified speed.
Does self-diagnosis show damage to
torque converter clutch solenoid valve
after cruise test?
No
EYe s
Check torque converter
clutch solenoid valve.
Refer to AT-72.
Check throttle (accelerator) position sen-
sor. Refer to EC section [TROUBLE
DIAGNOSIS FOR ªTHROTTLE (ACCEL)
POSI SENº].
OK
ENG
Repair or replace throttle
(accelerator) position sen-
sor.
1. Remove control valve. Refer to AT-113.
2. Check following items:
ITorque converter clutch control valve
ITorque converter relief valve
ITorque converter clutch solenoid valve
IPilot valve
IPilot filter
OK
ENG
Repair or replace dam-
aged parts.
Check again.
OK
ENG
1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin
terminals for damage or
loose connection with
harness connector.
INSPECTION END
SAT844H
NAT262
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DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-106

16. A/T Does Not Hold Lock-up Condition
SYMPTOM:
A/T does not hold lock-up condition for more than 36 seconds.
Does self-diagnosis show damage to
engine speed signal circuit after cruise
test?
No
EYe s
Check engine speed sig-
nal. Refer to AT-80.
1. Remove oil pan.
2. Check A/T fluid condition.
OK
ENG
1. Remove control valve
assembly. Refer to
AT-113.
2. Check the following
items:
ITorque converter clutch
control valve
IPilot valve
IPilot filter
3. Disassemble A/T.
4. Check torque converter
and oil pump assembly.
1. Remove control valve assembly. Refer
to AT-113.
2. Check the following items:
ITorque converter clutch control valve
IPilot valve
IPilot filter
OKFOK
Check again.
OK
ENG
1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin
terminals for damage or
loose connection with
harness connector.
INSPECTION END
17. Lock-up Is Not Released
SYMPTOM:
Lock-up is not released when accelerator pedal is released.
Does ªECU INPUT SIGNALSº in
Data Monitor show damage to closed
throttle position switch circuit?
-----------------------------------------------------------------------------------------------------------------------OR -----------------------------------------------------------------------------------------------------------------------
Does self-diagnosis show damage to
closed throttle position switch circuit?
No
EYe s
Check closed throttle posi-
tion switch. Refer to AT-88.
Check again.
OK
ENG
1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin
terminals for damage or
loose connection with
harness connector.
INSPECTION END
SAT835H
SAT171B
SAT146BA
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DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-107

18. Engine Speed Does Not Return To Idle
(Light Braking D
4®D3)
SYMPTOM:
IEngine speed does not smoothly return to idle when A/T
shifts from D
4to D3.
IVehicle does not decelerate by engine brake when turning
overdrive control switch OFF.
IVehicle does not decelerate by engine brake when shifting
A/T from ªDº to ª2º position.
Does self-diagnosis show damage to
overrun clutch solenoid valve circuit after
cruise test?
No
EYe s
Check overrun clutch sole-
noid valve. Refer to AT-69.
Check throttle (accelerator) position sen-
sor. Refer to EC section [TROUBLE
DIAGNOSIS FOR ªTHROTTLE (ACCEL)
POSI SENº].
OK
ENG
Repair or replace throttle
(accelerator) position sen-
sor.
1. Remove oil pan.
2. Check A/T fluid condition.
OK
ENG
1. Remove control valve
assembly. Refer to
AT-113.
2. Check the following
items:
IOverrun clutch control
valve
IOverrun clutch reducing
valve
IOverrun clutch solenoid
valve
3. Disassemble A/T.
4. Check the following
items:
IOverrun clutch assembly
IOil pump assembly
1. Remove control valve assembly. Refer
to AT-113.
2. Check the following items:
IOverrun clutch control valve
IOverrun clutch reducing valve
IOverrun clutch solenoid valve
OK
FOK
Check again.
OK
ENG
1. Perform TCM input/
output signal inspection.
2. If NG, recheck TCM pin
terminals for damage or
loose connection with
harness connector.
INSPECTION END
YAT338
NAT262
SAT171B
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DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-108