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:
QG13DE 2,000 - 2,300 rpm
QG15DE 2,000 - 2,300 rpm
QG16DE 2,200 - 2,700 rpm
QG18DE 2,050 - 2,500 rpm
SAT771B
8. Move selector lever to ªNº position.
9. Cool off ATF.
+Run 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 TESTNJAT0026S02The test result and possible damaged components relating to each
result are shown in the illustrations on next page.
In order to pinpoint the possible damaged components, follow the
WORK FLOW shown in AT-71 (Except for Euro-OBD) or AT-76
(EURO-OBD).
NOTE:
Stall revolution is too high in ªDº, ª2º or ª1º position:
+Slippage occurs in 1st gear but not in 2nd and 3rd gears. .....
Low one-way clutch slippage
+Slippage occurs in the following gears:
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Stall Test (Cont'd)
AT-79
1st through 3rd gears in ªDº position and engine brake func-
tions with overdrive control switch set to ªOFFº.
1st and 2nd gears in ª2º position and engine brake functions
with accelerator pedal released (fully closed throttle). ..... For-
ward clutch or forward one-way clutch slippage
Stall revolution is too high in R position:
+Engine brake does not function in ª1º position. ..... Low &
reverse brake slippage
+Engine brake functions in ª1º position. ..... Reverse clutch slip-
page
Stall revolution within specifications:
+Vehicle 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 abnor-
mally.
+Slippage occurs in 3rd and 4th gears in ªDº position. ..... High
clutch slippage
+Slippage occurs in 2nd and 4th gear in ªDº position. ..... Brake
band slippage
+Engine brake does not function in 2nd and 3rd gears in ªDº
position, 2nd gear in ª2º position, and 1st gear in ª1º position
with overdrive control switch set to ªOFFº.
Stall revolution less than specifications:
+Poor acceleration during starts. ..... One-way clutch seizure in
torque converter
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Stall Test (Cont'd)
AT-80
JUDGEMENT OF LINE PRESSURE TESTNJAT0027S03
Judgement Suspected parts
At idleLine pressure is low in all positions.+Oil pump wear
+Control piston damage
+Pressure regulator valve or plug sticking
+Spring for pressure regulator valve damaged
+Fluid pressure leakage between oil strainer and pressure regulator valve
+Clogged strainer
Line pressure is low in particular
position.+Fluid pressure leakage between manual valve and particular clutch
+For example, line pressure is:
þ Low in ªRº and ª1º positions, but
þ Normal in ªDº and ª2º positions.
Therefore, fluid leakage exists at or around low and reverse brake circuit.
Refer to ªCLUTCH AND BAND CHARTº, AT-21.
Line pressure is high.+Maladjustment of throttle position sensor
+A/T fluid temperature sensor damaged
+Line pressure solenoid valve sticking
+Short circuit of line pressure solenoid valve circuit
+Pressure modifier valve sticking
+Pressure regulator valve or plug sticking
+Open in dropping resistor circuit
At stall
speedLine pressure is low.+Maladjustment of throttle position sensor
+Line pressure solenoid valve sticking
+Short circuit of line pressure solenoid valve circuit
+Pressure regulator valve or plug sticking
+Pressure modifier valve sticking
+Pilot valve sticking
SAT786A
Road TestNJAT0028DESCRIPTIONNJAT0028S01+The purpose of the test is to determine overall performance of
A/T and analyze causes of problems.
+The road test consists of the following three parts:
1. Check before engine is started
2. Check at idle
3. 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 the following items.
ON BOARD DIAGNOSITC
SYSTEM DESCRIPTIONTROUBLE DIAGNOSES FOR
SYMPTOMS
General and
Except for
Euro-OBDAT-37 - AT-47 AT-286 and AT-288 - AT-326
TROUBLE DIAGNOSIS Ð BASIC INSPECTION
Line Pressure Test (Cont'd)
AT-83
Symptom ChartNJAT0029Numbers are arranged in order of inspection.
Perform inspections starting with number one and work up.
Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Engine cannot start in ªPº and ªNº
positions.
AT-291ON vehicle1. Ignition switch and starterEL-10, ªPOWER SUPPLY
ROUTINGº and SC-13,
ªSTARTING SYSTEMº
2. Control cable adjustment AT-344¬
3. PNP switch adjustment AT-344¬
Engine starts in position other than
ªNº and ªPº positions.
AT-291ON vehicle1. Control cable adjustment AT-344¬
2. PNP switch adjustment AT-344¬
Transaxle noise in ªPº and ªNº
positions.ON vehicle1. Fluid level AT-78¬
2. Line pressure test AT-82¬
3. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
4. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
5. Engine speed signal AT-170 AT-198
OFF vehicle6. Oil pump AT-371¬
7. Torque converter AT-354¬
Vehicle moves when changing into
ªPº position, or parking gear does
not disengage when shifted out of
ªPº position.
AT-292ON vehicle 1. Control cable adjustment AT-344¬
OFF vehicle 2. Parking components AT-351 AT-351
Vehicle runs in ªNº position.
AT-293ON vehicle 1. Control cable adjustment AT-344¬
OFF vehicle2. Forward clutch AT-399¬
3. Reverse clutch AT-390¬
4. Overrun clutch AT-399¬
Vehicle will not run in ªRº position
(but runs in ªDº, ª2º and ª1º posi-
tions). Clutch slips.
Very poor acceleration.
AT-297ON vehicle1. Control cable adjustment AT-344¬
2. Line pressure test AT-82¬
3. Line pressure solenoid valve AT-174 AT-237
4. Control valve assembly AT-343¬
OFF vehicle5. Reverse clutch AT-390¬
6. High clutch AT-394¬
7. Forward clutch AT-399¬
8. Overrun clutch AT-399¬
9. Low & reverse brake AT-406¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart
AT-103
Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Vehicle braked when shifting into
ªRº position.ON vehicle1. Fluid level AT-78¬
2. Control cable adjustment AT-344¬
3. Line pressure test AT-82¬
4. Line pressure solenoid valve AT-174 AT-237
5. Control valve assembly AT-343¬
OFF vehicle6. High clutch AT-394¬
7. Brake band AT-419¬
8. Forward clutch AT-399¬
9. Overrun clutch AT-399¬
Sharp shock in shifting from ªNº to
ªDº position.ON vehicle1. Engine idling rpmEC-41, ªIdle
Speed and
Ignition Tim-
ingºEC-41, ªIdle
Speed and
Ignition Tim-
ingº
2. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Line pressure test AT-82¬
4. A/T fluid temperature sensor AT-163 AT-187
5. Engine speed signal AT-170 AT-198
6. Line pressure solenoid valve AT-174 AT-237
7. Control valve assembly AT-343¬
8. Accumulator N-D AT-343¬
OFF vehicle 9. Forward clutch AT-399¬
Vehicle will not run in ªDº and ª2º
positions (but runs in ª1º and ªRº
positions).ON vehicle 1. Control cable adjustment AT-344¬
OFF vehicle 2. Low one-way clutch AT-350 AT-350
Vehicle will not run in ªDº, ª1º, ª2º
positions (but runs in ªRº position).
Clutch slips. Very poor accelera-
tion.
AT-300ON vehicle1. Fluid level AT-78¬
2. Line pressure test AT-82¬
3. Line pressure solenoid valve AT-174 AT-237
4. Control valve assembly AT-343¬
5. Accumulator N-D AT-343¬
OFF vehicle6. Reverse clutch AT-390¬
7. High clutch AT-394¬
8. Forward clutch AT-399¬
9. Forward one-way clutch AT-410¬
10. Low one-way clutch AT-350 AT-350
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-104
Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Clutches or brakes slip somewhat
in starting.ON vehicle1. Fluid level AT-78¬
2. Control cable adjustment AT-344¬
3. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
4. Line pressure test AT-82¬
5. Line pressure solenoid valve AT-174 AT-237
6. Control valve assembly AT-343¬
7. Accumulator N-D AT-343¬
OFF vehicle8. Forward clutch AT-399¬
9. Reverse clutch AT-390¬
10. Low & reverse brake AT-406¬
11. Oil pump AT-371¬
12. Torque converter AT-354¬
Excessive creep. ON vehicle 1. Engine idling rpmEC-41, ªIdle
Speed and
Ignition Tim-
ingºEC-41, ªIdle
Speed and
Ignition Tim-
ingº
No creep at all.
AT-297 and AT-300ON vehicle1. Fluid level AT-78¬
2. Line pressure test AT-82¬
3. Control valve assembly AT-343¬
OFF vehicle4. Forward clutch AT-399¬
5. Oil pump AT-371¬
6. Torque converter AT-354¬
Failure to change gear from ªD
1º
to ªD
2º.ON vehicle1. PNP switch adjustment AT-344¬
2. Control cable adjustment AT-344¬
3. Shift solenoid valve A AT-140 AT-244
4. Control valve assembly AT-343¬
5. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
OFF vehicle 6. Brake band AT-419¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-105
Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Failure to change gear from ªD
2º
to ªD
3º.ON vehicle1. PNP switch adjustment AT-344¬
2. Control cable adjustment AT-344¬
3. Shift solenoid valve B AT-146 AT-250
4. Control valve assembly AT-343¬
5. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
OFF vehicle6. High clutch AT-394¬
7. Brake band AT-419¬
Failure to change gear from ªD
3º
to ªD
4º.ON vehicle1. PNP switch adjustment AT-344¬
2. Control cable adjustment AT-344¬
3. Shift solenoid valve A AT-140 AT-244
4. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
5. A/T fluid temperature sensor AT-163 AT-187
OFF vehicle 6. Brake band AT-419¬
Too high a gear change point from
ªD
1ºtoªD2º, from ªD2ºtoªD3º,
from ªD
3ºtoªD4º.
AT-306, AT-309 and AT-312ON vehicle1. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Vehicle speed sensor´A/T (Revolution
sensor) and vehicle speed sensor´MTRAT-124,
AT-129AT-193,
AT-278
3. Shift solenoid valve A AT-140 AT-244
4. Shift solenoid valve B AT-146 AT-250
Gear change directly from ªD
1ºto
ªD
3º occurs.ON vehicle1. Fluid level AT-78¬
2. Accumulator servo release AT-343¬
OFF vehicle 3. Brake band AT-419¬
Engine stops when shifting lever
into ªRº, ªDº, ª2º and ª1º.ON vehicle1. Engine idling rpmEC-41, ªIdle
Speed and
Ignition Tim-
ingºEC-41, ªIdle
Speed and
Ignition Tim-
ingº
2. Torque converter clutch solenoid valve AT-157 AT-231
3. Control valve assembly AT-343¬
OFF vehicle 4. Torque converter AT-354¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-106
Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
Too sharp a shock in change from
ªD
1ºtoªD2º.ON vehicle1. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Line pressure test AT-82¬
3. Accumulator servo release AT-343¬
4. Control valve assembly AT-343¬
5. A/T fluid temperature sensor AT-163 AT-187
OFF vehicle 6. Brake band AT-419¬
Too sharp a shock in change from
ªD
2ºtoªD3º.ON vehicle1. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Line pressure test AT-82¬
3. Control valve assembly AT-343¬
OFF vehicle4. High clutch AT-394¬
5. Brake band AT-419¬
Too sharp a shock in change from
ªD
3ºtoªD4º.ON vehicle1. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
2. Line pressure test AT-82¬
3. Control valve assembly AT-343¬
OFF vehicle4. Brake band AT-419¬
5. Overrun clutch AT-399¬
Almost no shock or clutches slip-
ping in change from ªD
1ºtoªD2º.ON vehicle1. Fluid level AT-78¬
2. Throttle position sensor (Adjustment)EC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORºEC-168,
ªDTC P0120
THROTTLE
POSITION
SENSORº
3. Line pressure test AT-82¬
4. Accumulator servo release AT-343¬
5. Control valve assembly AT-343¬
OFF vehicle 6. Brake band AT-419¬
TROUBLE DIAGNOSIS Ð GENERAL DESCRIPTION
Symptom Chart (Cont'd)
AT-107