NISSAN TERRANO 2002 Service Repair Manual

8. Large Shock. ªNº®ªRº Position
SYMPTOM:
There is large shock when changing from ªNº to ªRº position.
Does self-diagnosis show damage to line
pressure solenoid valve or throttle (accel-
erator) position sensor, A/T fluid tempera-
ture sensor circuit?
No
EYe s
Check damaged circuit.
Refer to AT-60, AT-76 or
AT-84.
Check throttle (accelerator) position sen-
sor. Refer to EC section [TROUBLE
DIAGNOSIS FOR ªTHROTTLE (ACCEL)
POSI SENº (DTC 43)].
OK
ENG
Repair or replace throttle
(accelerator) position sen-
sor.
Check line pressure at idle with selector
lever in ªDº position. Refer to ªLine Pres-
sure Testº, AT-30.
OK
ENG
1. Remove control valve
assembly. Refer to
AT-113.
2. Check the following
items:
IValves to control line
pressure (Pressure regu-
lator valve, pressure
modifier valve, pilot valve
and pilot filter)
ILine pressure solenoid
valve
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
SAT831HA
NAT262
SAT494G
H
H
H H
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-99

9. Vehicle Does Not Creep Backward In ªRº
Position
SYMPTOM:
Vehicle does not creep backward when selecting ªRº position.
Check A/T fluid level again.
OK
ENG
Refill ATF.
qA
NG in both ª1º
and ªRº positions
Check stall revolution with selector
lever in ª1º and ªRº positions.
OK
OK in ª1º position
NG in ªRº position
E1. Remove control valve
assembly. Refer to AT-113.
2. Check the following items:
IValves to control line pres-
sure (Pressure regulator
valve, pressure modifier
valve, pilot valve and pilot
filter)
ILine pressure solenoid valve
3. Disassemble A/T.
4. Check the following items:
IOil pump assembly
ITorque converter
IReverse clutch assembly
IHigh clutch assembly
ILow & reverse brake assem-
bly
ILow one-way clutch
1. Remove control valve
assembly. Refer to AT-113.
2. Check the following items:
IValves to control line pres-
sure (Pressure regulator
valve, pressure modifier
valve, pilot valve and pilot
filter)
ILine pressure solenoid valve
3. Disassemble A/T.
4. Check the following items:
IOil pump assembly
ITorque converter
IReverse clutch assembly
IHigh clutch assembly
Check line pressure at idle with
selector lever in ªRº position. Refer to
ªLine Pressure Testº, AT-30.
OK
ENG
1. Remove control valve
assembly. Refer to AT-113.
2. Check the following items:
IValves to control line pres-
sure (Pressure regulator
valve, pressure modifier
valve, pilot valve and pilot
filter)
ILine pressure solenoid valve
3. Disassemble A/T.
4. Check the following item:
IOil pump assembly
1. Remove oil pan.
2. Check A/T fluid condition.
NG OK
q
A
Check again.
OK
ENG
1. Perform TCM input/output
signal inspection.
2. If NG, recheck TCM pin ter-
minals for damage or loose
connection with harness con-
nector.
INSPECTION END
SAT638A
SAT493G
SAT494G
SAT171B
HH
H
H
H
H
H
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-100

10. Vehicle Does Not Creep Forward In ªDº, ª2º
Or ª1º Position
SYMPTOM:
Vehicle does not creep forward when selecting ªDº, ª2º or ª1º
position.
Check A/T fluid level again.
OK
ENG
Refill ATF.
qA
Check stall revolution with selector lever in
ªDº position. Refer to ªSTALL TESTº, AT-27.
OK
ENG
1. Remove control valve
assembly. Refer to
AT-113.
2. Check the following
items:
IValves to control line
pressure (Pressure
regulator valve, pres-
sure modifier valve,
pilot valve and pilot
filter)
ILine pressure sole-
noid valve
3. Disassemble A/T.
4. Check the following
items:
IOil pump assembly
IForward clutch
assembly
IForward one-way
clutch
ILow one-way clutch
ILow & reverse brake
assembly
ITorque converter
Check line pressure at idle with selector
lever in ªDº position. Refer to ªLine Pressure
Testº, AT-30.
OK NG
1. Remove control valve assembly.
Refer to AT-113.
2. Check the following items:
IValves to control line pressure
(Pressure regulator valve, pressure
modifier valve, pilot valve and pilot
filter)
ILine pressure solenoid valve
3. Disassemble A/T.
4. Check the following item:
IOil pump assembly
1. Remove oil pan.
2. Check A/T fluid condition.
OK
ENG
qA
Check again.
OK
ENG
1. Perform TCM input/
output signal inspec-
tion.
2. If NG, recheck TCM
pin terminals for
damage or loose
connection with har-
ness connector.
INSPECTION END
SAT638A
SAT493G
SAT494G
SAT171B
HH
H
H
H
H H
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-101

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
H
H
H
H
H
H H
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-102

12. A/T Does Not Shift: D1®D2Or Does Not
Kickdown: D
4®D2
SYMPTOM:
A/T does not shift from D1to D2at the specified speed.
A/T does not shift from D
4to D2when depressing accelerator
pedal fully at the specified speed.
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 ªECU INPUT SIGNALSº in
Data Monitor show damage to park/
neutral position switch circuit?
-----------------------------------------------------------------------------------------------------------------------OR -----------------------------------------------------------------------------------------------------------------------
Does self-diagnosis show damage to
park/neutral position switch circuit?
No
EYe s
Check park/neutral position
switch. Refer to AT-92.
Check vehicle speed sensor×A/T (revolu-
tion sensor) and vehicle speed
sensor×MTR. Refer to AT-50, AT-54.
OK
ENG
Repair or replace vehicle
speed sensor×A/T (revolu-
tion sensor) and vehicle
speed sensor×MTR. Refer
to AT-50, AT-54.
Check throttle (accelerator) position sen-
sor. Refer to EC section [TROUBLE
DIAGNOSIS FOR ªTHROTTLE (ACCEL)
POSI SENº (DTC 43)].
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.
Refer to AT-113.
2. Check the following
items:
IShift valve A
IShift solenoid valve A
IPilot valve
IPilot filter
3. Disassemble A/T.
4. Check the following
items:
IServo piston assembly
IBrake band
IOil pump assembly
1. Remove control valve. Refer to AT-113.
2. Check the following items:
IShift valve A
IShift solenoid valve A
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
SAT146BA
NAT262
SAT171B
H
H
H
H
H
H H
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-103

13. A/T Does Not Shift: D2®D3
SYMPTOM:
A/T does not shift from D2to D3at the specified speed.
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 ªECU INPUT SIGNALSº in
Data Monitor show damage to park/
neutral position switch circuit?
-----------------------------------------------------------------------------------------------------------------------OR -----------------------------------------------------------------------------------------------------------------------
Does self-diagnosis show damage to
park/neutral position switch circuit?
No
EYe s
Check park/neutral position
switch. Refer to AT-92.
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
IShift solenoid valve B
IPilot valve
IPilot filter
3. Disassemble A/T.
4. Check the following
items:
IServo piston assembly
IHigh clutch assembly
IOil pump assembly
1. Remove control valve assembly. Refer
to AT-113.
2. Check the following items:
IShift valve B
IShift solenoid valve B
IPilot valve
IPilot filter
OK
OK
F
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
SAT146BA
NAT262
SAT171B
H
H
H
H
H H
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-104

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
H
H
H
H
H H
H
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
H
H
H H
H
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
H
H
H H
H
H
H
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
H
H
H
H H
H
DIAGNOSTIC PROCEDURES FOR SYMPTOMS
AT-108