Page 49 of 3051

Diagnostic Worksheet=NLAT0247S0102
1.NRead the Fail-safe and listen to customer complaints. AT-7
2.NCHECK CVT FLUIDAT-51
NLeakage (Follow specified procedure)
NFluid condition
NFluid level
3.NPerform STALL TEST and LINE PRESSURE TEST. AT-51, 52
NStall test Ð Mark possible damaged components/others.
NForward clutchNReverse brake
NEngine
NLine pressure is low.
NLine Pressure test Ð Suspected parts:
4.NPerform all ROAD TEST and mark required procedures. AT-53
4-1. Check before engine is started.AT-54
NSELF-DIAGNOSTIC PROCEDURE Ð Mark detected items.
NCVT fluid temperature sensor, AT-170.
NVehicle speed sensor (Output pulley speed signal), AT-126.
NEngine speed signal, AT-176.
NTorque converter clutch solenoid valve, AT-164.
NLine pressure solenoid valve, AT-157.
NStep motor, AT-146, 150.
NLine pressure sensor, AT-151.
NThrottle position sensor, AT-137.
NPrimary speed sensor, AT-132.
NCVT save function, AT-125
NControl unit (RAM), control unit (ROM), AT-180
NControl unit (EEP ROM), AT-182
NBattery
NOthers
5.NFor self-diagnosis NG items, inspect each component. Repair or replace the damaged parts. AT-31
6.NPerform all ROAD TEST and re-mark required procedures. AT-53
7.NPerform the Diagnostic Procedures for all remaining items marked NG. Repair or replace the damaged
parts.AT-58
AT-130
8.NErase self-diagnosis code from TCM memories. AT-34
TROUBLE DIAGNOSIS Ð
INTRODUCTION
EXCEPT FOR EURO-OBD
Introduction (Cont'd)
AT-48
Page 50 of 3051
Work Flow=NLAT0248HOW TO PERFORM TROUBLE DIAGNOSES FOR QUICK AND ACCURATE REPAIRNLAT0248S01A 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 (AT-47) and ªDIAGNOS-
TIC WORKSHEETº (AT-48), to perform the best troubleshooting possible.
TROUBLE DIAGNOSIS Ð
INTRODUCTION
EXCEPT FOR EURO-OBD
Work Flow
AT-49
Page 51 of 3051
WORK FLOW CHART=NLAT0248S02
SAT272K
*1: AT-47
*2: AT-48
*3: AT-7
*4: AT-51
*5: AT-51, 52*6: AT-53
*7: AT-31
*8: AT-31
*9: AT-38
*10: AT-127*11: AT-182
*12: AT-34
*13: AT-127
*14: AT-176
TROUBLE DIAGNOSIS Ð
INTRODUCTION
EXCEPT FOR EURO-OBD
Work Flow (Cont'd)
AT-50
Page 52 of 3051

SAT767B
CVT Fluid CheckNLAT0025FLUID LEAKAGE CHECKNLAT0025S011. 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.
SAT288G
4. Check for fluid leakage.
SAT638A
FLUID CONDITION CHECKNLAT0025S02
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 CHECKNLAT0025S03Refer to ªChecking CVT Fluidº, AT-10.
SAT647B
Stall TestNLAT0026STALL TEST PROCEDURENLAT0026S011. 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)
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
CVT Fluid Check
AT-51
Page 53 of 3051

SAT513G
3. Set parking brake and block wheels.
4. Install a tachometer where it can be seen by driver during test.
+It is good practice to mark the point of specified engine
rpm on indicator.
SAT514G
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.
+During test, never hold throttle wide open for more than 5
seconds.
Stall revolution:
2,350 - 2,850 rpm
SAT771B
8. Move selector lever to ªNº position.
9. Cool off CVT fluid.
+Run engine at idle for at least one minute.
SAT670J
Line Pressure TestNLAT0027LINE PRESSURE TEST PORTSNLAT0027S01Location of line pressure test ports are shown in the illustration.
+Always replace pressure plugs as they are self-sealing
bolts.
SAT647B
LINE PRESSURE TEST PROCEDURENLAT0027S021. 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)
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Stall Test (Cont'd)
AT-52
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3. Install pressure gauge to corresponding line pressure port.
SAT513G
4. Set parking brake and block wheels.
+Continue to depress brake pedal fully while line pressure
test is being performed at stall speed.
SAT493G
5. Start engine and measure line pressure at idle and stall speed.
+When measuring line pressure at stall speed, follow the
stall test procedure.
Line pressure: Refer to SDS, AT-210.
SAT692J
Road TestNLAT0028DESCRIPTIONNLAT0028S01+The purpose of the test is to determine overall performance of
CVT and analyze causes of problems.
+The road test consists of the following three parts:
1. Check before engine is started
2. Cruise test
SAT496G
+Before road test, familiarize yourself with all test procedures
and items to check.
+Conduct 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
DESCRIPTIONº, AT-18 to AT-28 (EURO-OBD)/AT-31 to AT-38
(Except for EURO-OBD).
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Line Pressure Test (Cont'd)
AT-53
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1. CHECK BEFORE ENGINE IS STARTED=NLAT0028S02
1 CHECK SPORT INDICATOR LAMP
1. Park vehicle on flat surface.
2. Move selector lever to ªPº position.
SAT967IC
3. Turn ignition switch to ªOFFº position. Wait at least 5 seconds.
4. Turn ignition switch to ªONº position. (Do not start engine.)
5. Does SPORT indicator lamp come on for about 2 seconds?
YesorNo
Ye s©GO TO 2.
No©Stop ROAD TEST.
2 CHECK SPORT INDICATOR LAMP
Does SPORT indicator lamp flicker for about 8 seconds?
YesorNo
Yes (EURO-OBD)©Perform self-diagnosis and check NG items on the DIAGNOSTIC WORKSHEET, AT-43.
Refer to TCM SELF-DIAGNOSIS PROCEDURE (NO TOOLS), AT-28.
Yes (Except for EURO-
OBD)©Perform self-diagnosis and check NG items on the DIAGNOSTIC WORKSHEET, AT-48.
Refer to TCM SELF-DIAGNOSIS PROCEDURE (NO TOOLS), AT-35.
No©1. Turn ignition switch to ªOFFº position.
2. Perform self-diagnosis and note NG items.
Refer to TCM SELF-DIAGNOSIS PROCEDURE (NO TOOLS), AT-28.
3 TEST DRIVE
Drive the vehicle and verify that there are no abnormalities.
©TEST END
SAT601J
2. CRUISE TESTNLAT0028S04+Check all items listed in Parts 1 through 3.
With CONSULT-IINLAT0028S0401+Using CONSULT-II, conduct a cruise test and record the result.
+Print the result and ensure that shifts and lock-ups take place
as per Shift Schedule.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-54
Page 56 of 3051
SAT228K
CONSULT-II Setting ProcedureNLAT0028S04021. Turn ignition switch ªOFFº.
2. Connect CONSULT-II to data link connector which is located
in the left side lower dash panel.
SAT586J
3. Turn ignition switch ªONº.
4. Touch ªSTARTº.
SAT250K
5. Touch ªCVTº.
SAT252K
6. Touch ªDATA MONITORº.
SAT253K
7. Touch ªMAIN SIGNALSº to set recording condition.
8. See ªNumerical Displayº, ªBarchart Displayº or ªLine Graph
Displayº.
9. Touch ªSTARTº.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-55