Page 94 of 2898
7 CHECK VEHICLE MOVE
1. Move selector lever to ªDº, ª2º and ª1º positions and check if vehicle creeps forward.
SAT773B
2. Does vehicle creep forward in all three positions?
YesorNo
Ye s©Go to 3. CRUISE TEST, AT-92.
No©Mark the box on the DIAGNOSTIC WORKSHEET. Go to ª7. Vehicle Does Not Creep
Forward In ªDº, ª2º Or ª1º Positionº, AT-308. Continue ROAD TEST.
SAT601J
3. CRUISE TESTNJAT0028S04+Check all items listed in Parts 1 through 3.
With CONSULT-IINJAT0028S0401+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.
SAT998J
CONSULT-II Setting ProcedureNJAT0028S04021. Turn ignition switch ªOFFº.
2. Connect CONSULT-II to data link connector, which is located
in left side lower dash panel.
SAT586J
3. Turn ignition switch ªONº.
4. Touch ªSTARTº.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-92
Page 99 of 2898
4 CHECK SHIFT UP (D3TO D4)
Does A/T shift from D3to D4at the specified speed?
Read gear position, throttle position and vehicle speed.
Specified speed when shifting from D
3to D4:
Refer to Shift schedule, AT-470.
SAT956I
YesorNo
Ye s©GO TO 5.
No©Go to ª11. A/T Does Not Shift: D
3®D4º, AT-320. Continue ROAD TEST.
5 CHECK LOCK-UP (D4TO D4L/U)
Does A/T perform lock-up at the specified speed?
Read vehicle speed, throttle position when lock-up duty becomes 94%.
Specified speed when lock-up occurs:
Refer to Shift schedule, AT-470.
SAT957I
YesorNo
Ye s©GO TO 6.
No©Go to ª12. A/T Does Not Perform Lock-upº, AT-323. Continue ROAD TEST.
6 CHECK HOLD LOCK-UP
Does A/T hold lock-up condition for more than 30 seconds?
YesorNo
Ye s©GO TO 7.
No©Go to ª13. A/T Does Not Hold Lock-up Conditionº, AT-325.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-97
Page 100 of 2898
7 CHECK SHIFT DOWN (D4L/U TO D4)
1. Release accelerator pedal.
2. Is lock-up released when accelerator pedal is released?
SAT958I
YesorNo
Ye s©GO TO 8.
No©Go to ª14. Lock-up Is Not Releasedº, AT-327. Continue ROAD TEST.
8 CHECK SHIFT DOWN (D4TO D3)
1. Decelerate vehicle by applying foot brake lightly.
2. Does engine speed return to idle smoothly when A/T is shifted from D
4to D3?
Read gear position and engine speed.
SAT959I
YesorNo
Ye s©1. Stop vehicle.
2. Go to ªCruise test Ð Part 2º, AT-99.
No©Go to ª15. Engine Speed Does Not Return To Idle (Light Braking D
4®D3)º, AT-328.
Continue ROAD TEST.
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Road Test (Cont'd)
AT-98
Page 119 of 2898

Symptom Condition Diagnostic ItemReference Page
General and
except for
Euro-OBDEURO-OBD
Torque converter is not locked up.ON vehicle1. Throttle position sensor (Adjustment)EC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-126,
AT-131AT-195,
AT-281
3. PNP switch adjustment AT-352¬
4. Engine speed signal AT-172 AT-200
5. A/T fluid temperature sensor AT-165 AT-189
6. Line pressure test AT-84¬
7. Torque converter clutch solenoid valve AT-159 AT-233
8. Control valve assembly AT-351¬
OFF vehicle 9. Torque converter AT-366¬
Torque converter clutch piston slip.ON vehicle1. Fluid level AT-80¬
2. Throttle position sensor (Adjustment)EC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Line pressure test AT-84¬
4. Torque converter clutch solenoid valve AT-159 AT-233
5. Line pressure solenoid valve AT-176 AT-239
6. Control valve assembly AT-351¬
OFF vehicle 7. Torque converter AT-366¬
Lock-up point is extremely high or
low.
AT-323ON vehicle1. Throttle position sensor (Adjustment)EC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-207,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-126,
AT-131AT-195,
AT-281
3. Torque converter clutch solenoid valve AT-159 AT-233
4. Control valve assembly AT-351¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-117
Page 121 of 2898

TCM HARNESS CONNECTOR TERMINAL LAYOUTNJAT0030S02
SAT999J
TCM INSPECTION TABLENJAT0030S03(Data are reference values.)
Terminal
No.Wire color Item ConditionJudgement stan-
dard
1 R/WLine pressure
solenoid valve
When releasing accelerator pedal
after warming up engine.1.5 - 2.5V
When depressing accelerator pedal
fully after warming up engine.0.5V or less
2 P/BLine pressure
solenoid valve
(with dropping
resistor)When releasing accelerator pedal
after warming up engine.5 - 14V
When depressing accelerator pedal
fully after warming up engine.0.5V or less
3 GY/RTorque converter
clutch solenoid
valve
When A/T performs lock-up. 8 - 15V
When A/T does not perform lock-up. 1V or less
5 *2 Y/R Ð
ÐÐ
6 *2 Y/G Ð Ð Ð
7 *2 Y/B Ð Ð Ð
8*2 BR/W Ð Ð Ð
9*2 G/Y Ð Ð Ð
10 BR/R Power sourceWhen turning ignition switch to
ªONº.Battery voltage
When turning ignition switch to
ªOFFº.1V or less
11 L/WShift solenoid
valve A
When shift solenoid valve A oper-
ates.
(When driving in ªD
1ºorªD4º.)Battery voltage
When shift solenoid valve A does
not operate.
(When driving in ªD
2ºorªD3º.)1V or less
12 L/YShift solenoid
valve BWhen shift solenoid valve B oper-
ates.
(When driving in ªD
1ºorªD2º.)Battery voltage
When shift solenoid valve B does
not operate.
(When driving in ªD
3ºorªD4º.)1V or less
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
TCM Terminals and Reference Value (Cont'd)
AT-119
Page 128 of 2898

SAT357H
DescriptionNJAT0038The revolution sensor detects the revolution of the idler gear park-
ing pawl lock gear and emits a pulse signal. The pulse signal is sent
to the TCM which converts it into vehicle speed.
TCM TERMINALS AND REFERENCE VALUENJAT0038S01Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement stan-
dard
29 W Revolution sensor
When moving at 20 km/h (12 MPH),
use the CONSULT-II pulse fre-
quency measuring function.*1
CAUTION:
Connect the diagnosis data link
cable to the vehicle diagnosis
connector.
*1: A circuit tester cannot be used
to test this item.Approximately
150 Hz
When vehicle parks.Under 1.3V or
over 4.5V
42 BThrottle position
sensor
(Ground)
ÐÐ
ON BOARD DIAGNOSIS LOGICNJAT0038S02
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: VHCL SPEED SEN´AT
TCM does not receive the proper voltage
signal from the sensor.+Harness or connectors
(The sensor circuit is open or shorted.)
+Revolution sensor
: 1st judgement flicker
VEHICLE SPEED SENSOR´A/T
(REVOLUTION SENSOR)
EXCEPT FOR EURO-OBD
Description
AT-126
Page 161 of 2898

SAT322GC
DescriptionNJAT0055The torque converter clutch solenoid valve is activated, with the
gear in ªD
4º, by the TCM in response to signals sent from the
vehicle speed and throttle position sensors. Lock-up piston opera-
tion will then be controlled.
Lock-up operation, however, is prohibited when A/T fluid tempera-
ture is too low.
When the accelerator pedal is depressed (less than 2/8) in lock-up
condition, the engine speed should not change abruptly. If there is
a big jump in engine speed, there is no lock-up.
CONSULT-II REFERENCE VALUE IN DATA MONITOR
MODE
NJAT0055S01Remarks: Specification data are reference values.
Monitor item Condition Specification
Torque converter clutch solenoid valve
dutyLock-up ªOFFº
¯
Lock-up ªONºApproximately 4%
¯
Approximately 94%
TCM TERMINALS AND REFERENCE VALUENJAT0055S02Remarks: Specification data are reference values.
Terminal
No.Wire color Item ConditionJudgement
standard
3 GY/RTorque converter
clutch solenoid
valve
When A/T performs lock-up. 8 - 15V
When A/T does not perform lock-
up.1V or less
ON BOARD DIAGNOSIS LOGICNJAT0055S03
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: T/C CLUTCH SOL/V TCM detects an improper voltage drop
when it tries to operate the solenoid
valve.+Harness or connectors
(The solenoid circuit is open or shorted.)
+T/C clutch solenoid valve
: 7th judgement flicker
TORQUE CONVERTER CLUTCH
SOLENOID VALVE
EXCEPT FOR EURO-OBD
Description
AT-159
Page 162 of 2898
SAT580J
SAT818H
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURENJAT0055S05After the repair, perform the following procedure to confirm the
malfunction is eliminated.
With CONSULT-IINJAT0055S05011) Start engine.
2) Select ªSELF-DIAG RESULTSº mode for A/T with CONSULT-
II.
3) Drive vehicle in D
1®D2®D3®D4®D4lock-up position.
Without CONSULT-IINJAT0055S05021) Start engine.
2) Drive vehicle in D
1®D2®D3®D4®D4lock-up position.
3) Perform self-diagnosis.
Refer to ªSELF-DIAGNOSTIC PROCEDURE (Without
CONSULT-II)º, AT-44.
TORQUE CONVERTER CLUTCH
SOLENOID VALVE
EXCEPT FOR EURO-OBD
Description (Cont'd)
AT-160