2002 NISSAN TERRANO Service Repair Manual

Diagnostic Worksheet
INFORMATION FROM CUSTOMER
KEY POINTS
WHAT......................... Vehicle & A/T model
WHEN......................... Date, Frequencies
WHERE...................... Road conditions
HOW........................... Operating conditions, Symptoms
Customer name MR/MS Model & Year VIN
Trans. model Engine Mileage
Incident Date Manuf. Date In Service Date
FrequencylContinuouslIntermittent ( times a day)
SymptomslVehicle does not move. (lAny positionlParticular position)
lNo up-shift (l1st,2ndl2nd,3rdl3rd,O/D)
lNo down-shift (lO/D,3rdl3rd,2ndl2nd,1st)
lLockup malfunction
lShift point too high or too low.
lShift shock or slip (lN,DlLockuplAny drive position)
lNoise or vibration
lNo kickdown
lNo pattern select
lOthers
()
SPORT indicator lamp Blinks for about 8 seconds.
lContinuously litlNot lit
Malfunction indicator lamp
(MIL)lContinuously litlNot lit
TROUBLE DIAGNOSIS Ð Introduction
AT-23

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

4. Part-2
l19. Vehicle Does Not Start From D
1, AT-109.
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.AT-41
Part-3
l20. A/T Does Not Shift: D
2,D1When Depressing Accelerator Pedal, AT-5.
l21. A/T Does Not Shift: D
4,D3When Overdrive Control Switch ªONº,
ªOFFº, AT-111.
l18. Engine Speed Does Not Return To Idle (Engine Brake In D
3), AT-108.
l22. A/T Does Not Shift: D
3,22, When Selector Lever ªDº,ª2º Position,
AT- 111 .
l18. Engine Speed Does Not Return To Idle (Engine Brake In 2
2), AT-108.
l23. A/T Does Not Shift: 2
2,11, When Selector Lever ª2º,ª1º Position,
AT-5.
l24. Vehicle Does Not Decelerate By Engine Brake, AT-112.
lSELF-DIAGNOSTIC PROCEDURE Ð Mark detected items.AT-42
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-69.
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
5.lFor self-diagnosis NG items, inspect each component. Repair or replace the
damaged parts.AT-14
6.lPerform all ROAD TEST and re-mark required procedures. AT-32
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-46
AT-43
8.lErase self-diagnosis code from TCM memories. AT-19
TROUBLE DIAGNOSIS Ð Introduction
Diagnostic Worksheet (Cont'd)
AT-25

Work Flow
HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIR
A good understanding of the malfunction conditions can make troubleshooting faster and more accurate.
In general, each customer feels differently about a problem. It is important to fully understand the symptoms
or conditions for a customer complaint.
Make good use of the two sheets provided, ªINFORMATION FROM CUSTOMERº and ªDIAGNOSTIC
WORKSHEETº, to perform the best troubleshooting possible.
CHECK IN
LISTEN TO CUSTOMER COMPLAINTS AND FILL OUT
ªINFORMATION FROM CUSTOMERº, AT-23.
Check for any Service Bulletins.FRefer to FAIL-SAFE Service Notice or Precautions, AT-5.
CHECK A/T FLUID LEVEL AND CONDITION. IF NG, PLACE
CHECK ON THE DIAGNOSTIC WORKSHEET, AT-24.FRefer to A/T Fluid Check, AT-27.
PERFORM STALL TEST AND LINE PRESSURE TEST.FRefer to Stall Test and Line Pressure Test, AT-27, AT-30.
PERFORM ROAD TEST WITH SELF-DIAGNOSIS AND
PLACE CHECKS FOR NG ITEMS ON THE DIAGNOSTIC
WORKSHEET.
NG items including
self-diagnostic item
FFollow ROAD TEST procedure, AT-32.
IFOR SELF-DIAGNOSIS NG ITEMS:
-INSPECT EACH COMPONENT.
-REPAIR/REPLACE.
IPERFORM ROAD TEST AND PLACE CHECKS FOR NG
ITEMS ON THE DIAGNOSTIC WORKSHEET AGAIN.FIRefer to self-diagnosis, AT-14.
IPerform ROAD TEST for all items.
IFOR ALL REMAINING MALFUNCTIONS:
-INSPECT EACH COMPONENT.
-REPAIR/REPLACE.
IPERFORM ROAD TEST AND CONFIRM ALL MALFUNC-
TIONS ARE ELIMINATED.FRefer to
ION BOARD DIAGNOSTIC SYSTEM DESCRIPTION,
AT-14, AT-20.
ITROUBLE DIAGNOSIS FOR SELF-DIAGNOSIS CODE,
AT-50, AT-88.
IDIAGNOSTIC PROCEDURES FOR SYMPTOMS, AT-26,
AT-112.
ISymptom Chart, AT-43.
ERASE SELF-DIAGNOSIS CODE FROM TCM MEMORIES.FRefer to HOW TO ERASE SELF-DIAGNOSIS RESULTS,
AT-19.
PERFORM FINAL CHECK
OK
FRefer to SELF-DIAGNOSIS CONFIRMATION PROCEDURE,
AT-50 - AT-84.
CHECK OUT
H
H
H
H
H
H
H
H
H
TROUBLE DIAGNOSIS Ð Introduction
AT-26

A/T Fluid Check
FLUID LEAKAGE CHECK
1. 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 fresh leakage.
FLUID CONDITION CHECK
Fluid color Suspected problem
Dark or black with burned odor Wear of frictional material
Milky pinkWater contamination Ð Road water enter-
ing through filler tube or breather
Varnished fluid, light to dark
brown and tackyOxidation Ð Over or under filling, Ð Over-
heating
FLUID LEVEL CHECK
Refer to MA section (ªChecking A/T Fluidº, ªCHASSIS AND BODY
MAINTENANCEº).
Stall Test
STALL TEST PROCEDURE
1. Check A/T and engine fluid levels. If necessary, add.
2. Drive vehicle for approx. 10 minutes or until engine oil and ATF
reach operating temperature.
ATF operating temperature:
50 - 80ÉC (122 - 176ÉF)
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 put a mark on point of specified
engine rpm on indicator.
5. Start engine, apply foot brake, and place selector lever in ªDº
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:
2,450 - 2,700 rpm
SAT801A
SAT638A
SAT647B
SAT513G
SAT514G
TROUBLE DIAGNOSIS Ð Basic Inspection
AT-27

8. Move selector lever to ªNº position.
9. Cool off ATF.
IRun engine at idle for at least one minute.
10. Repeat steps 5 through 9 with selector lever in ª2º, ª1º and ªRº
positions.
JUDGEMENT OF STALL TEST
The test result and possible damaged components relating to each result are shown in the illustration.
In order to pinpoint the possible damaged components, follow the WORK FLOW as shown in AT-26.
Note
Stall revolution is too high in ªDº or ª2º position:
ISlippage occurs in 1st gear but not in 2nd and 3rd gears. ..... Low one-way clutch slippage
ISlippage occurs at the following gears:
1st through 3rd gears in ªDº position and engine brake functions.
1st and 2nd gears in ª2º position and engine brake functions with accelerator pedal released (fully closed
throttle). ..... Forward clutch or forward one-way clutch slippage
Stall revolution is too high in ªRº position:
IEngine brake does not function in ª1º position. ..... Low & reverse brake slippage
IEngine brake functions in ª1º position. ..... Reverse clutch slippage
Stall revolution within specifications:
IVehicle does not achieve speed of more than 80 km/h (50 MPH). ..... One-way clutch seizure in torque
converter housing
CAUTION:
Be careful since automatic fluid temperature increases abnormally.
ISlippage occurs in 3rd and 4th gears in ªDº position. ..... High clutch slippage
ISlippage occurs in 2nd and 4th gears in ªDº position. ..... Brake band slippage
Stall revolution less than specifications:
IPoor acceleration during starts. ..... One-way clutch seizure in torque converter
SAT771B
TROUBLE DIAGNOSIS Ð Basic Inspection
Stall Test (Cont'd)
AT-28

JUDGEMENT OF STALL TEST
SAT392H
TROUBLE DIAGNOSIS Ð Basic Inspection
Stall Test (Cont'd)
AT-29

Line Pressure Test
LINE PRESSURE TEST PORTS
ILocation of line pressure test ports.
IAlways replace line pressure plugs as they are self-
sealing bolts.
LINE PRESSURE TEST PROCEDURE
1. Check A/T and engine fluid levels. If necessary, add fluid.
2. Drive vehicle for approx. 10 minutes or until engine oil and ATF
reach operating temperature.
ATF operating temperature:
50 - 80ÉC (122 - 176ÉF)
3. Install pressure gauge to corresponding line pressure port.
SAT209GA
SAT647B
SAT518GB
SAT519GA
TROUBLE DIAGNOSIS Ð Basic Inspection
AT-30