AT-86
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
PFP:00000
Symptom ChartECS004QU
Numbers are arranged in order of inspection.
Perform inspections starting with number one and work up.
Symptom Condition Diagnostic ItemReference Page
EURO-OBD
Engine cannot start in “P” and “N”
positions.
AT- 2 11 , "
Engine Cannot Be Started
In “P” and “N” Position"
ON vehicle1. Ignition switch and starterPG-2, "
POWER SUPPLY
ROUTING",SC-20,
"STARTING SYSTEM"
2. Control cable adjustmentAT-416, "Control Cable
Adjustment"
3. PNP switchAT- 11 0 , "
DTC P0705
PARK/NEUTRAL POSI-
TION (PNP) SWITCH"
Engine starts in position other than
“N” and “P” positions.
AT- 2 11 , "
Engine Cannot Be Started
In “P” and “N” Position"
ON vehicle1. Control cable adjustmentAT-416, "
Control Cable
Adjustment"
2. PNP switchAT- 11 0 , "
DTC P0705
PARK/NEUTRAL POSI-
TION (PNP) SWITCH"
Transaxle noise in “P” and “N” posi-
tions.ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Line pressure testAT- 6 7 , "Line Pressure Test"
3. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-122, "
DTC P0720 VEHI-
CLE SPEED SENSOR·A/T
(REVOLUTION SEN-
SOR)",
AT-199, "
DTC VEHICLE
SPEED SENSOR MTR"
OFF vehicle5. Oil pumpAT-444, "
Oil Pump"
6. Torque converterAT-425, "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
Vehicle moves when changing into
“P” position, or parking gear does
not disengage when shifted out of
“P” position.
AT- 2 1 2 , "
In “P” Position, Vehicle
Moves Forward Or Backward When
Pushed"
ON vehicle 1. Control cable adjustmentAT-416, "Control Cable
Adjustment"
OFF vehicle 2. Parking componentsAT-421, "
Components",AT-
441, "REPAIR FOR COM-
PONENT PARTS"
Vehicle runs in “N” position.
AT- 2 1 3 , "
In “N” Position, Vehicle
Moves"
ON vehicle 1. Control cable adjustmentAT-416, "Control Cable
Adjustment"
OFF vehicle2. Forward clutchAT-471, "
Forward and
Overrun Clutches"
3. Reverse clutchAT-463, "Reverse Clutch"
4. Overrun clutchAT-471, "Forward and
Overrun Clutches"
AT-88
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Sharp shock in shifting from “N” to
“D” position.ON vehicle1. Engine idling rpmEC-38
[QR25 (WITH
EURO-OBD)], EC-448
[QR25 (WITHOUT EURO-
OBD)], EC-771
[QR20
(WITH EURO-OBD)], EC-
1135 [QR20 (WITHOUT
EURO-OBD)]
2. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
3. Line pressure testAT- 6 7 , "Line Pressure Test"
4. A/T fluid temperature sensorAT-193, "
DTC BATT/FLUID
TEMP SEN (A/T FLUID
TEMP SENSOR CIRCUIT
AND TCM POWER
SOURCE)"
5. Engine speed signalAT-127, "DTC P0725
ENGINE SPEED SIGNAL"
6. Line pressure solenoid valveAT-163, "
DTC P0745 LINE
PRESSURE SOLENOID
VA LV E"
7. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
8. Accumulator N-DAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle 9. Forward clutchAT-471, "Forward and
Overrun Clutches"
Vehicle will not run in “D” and “2”
positions (but runs in “1” and “R”
positions).ON vehicle 1. Control cable adjustmentAT-416, "
Control Cable
Adjustment"
OFF vehicle 2. Low one-way clutchAT-421, "
OVERHAUL",AT-
425, "Locations of Adjust-
ing Shims, Needle Bear-
ings, Thrust Washers and
Snap Rings"
Vehicle will not run in “D”, “1”, “2”
positions (but runs in “R” position).
Clutch slips. Very poor acceleration.
AT- 2 1 8 , "
Vehicle Does Not Creep
Forward In “D”,“2” Or “1” Position"
ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Stall testAT- 6 4 , "Stall
Te s t"
3. Line pressure testAT- 6 7 , "Line Pressure Test"
4. Line pressure solenoid valveAT-163, "
DTC P0745 LINE
PRESSURE SOLENOID
VA LV E"
5. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
6. Accumulator N-DAT-414, "
Control Valve
Assembly and Accumula-
tors"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD
AT-90
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Excessive creep. ON vehicle 1. Engine idling rpmEC-38
[QR25 (WITH
EURO-OBD)], EC-448
[QR25 (WITHOUT EURO-
OBD)], EC-771
[QR20
(WITH EURO-OBD)], EC-
1135 [QR20 (WITHOUT
EURO-OBD)]
No creep at all.
AT- 2 1 5 , "
Vehicle Does Not Creep
Backward In “R” Position" and AT-
218, "Vehicle Does Not Creep For-
ward In “D”,“2” Or “1” Position"
ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Line pressure testAT-396, "LINE PRES-
SURE SOLENOID VALVE"
3. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle4. Forward clutchAT-471, "
Forward and
Overrun Clutches"
5. Oil pumpAT-444, "Oil Pump"
6. Torque converterAT-425, "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
Failure to change gear from “D1 ” to
“D
2 ”.ON vehicle1. Control cable adjustmentAT-416, "
Control Cable
Adjustment"
2. Shift solenoid valve AAT-170, "
DTC P0750
SHIFT SOLENOID VALVE
A"
3. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
4. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-122, "
DTC P0720 VEHI-
CLE SPEED SENSOR·A/T
(REVOLUTION SEN-
SOR)",AT- 1 9 9 , "DTC
VEHICLE SPEED SEN-
SOR MTR"
5. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
OFF vehicle 6. Brake bandAT-488, "Band Servo Pis-
ton Assembly"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD
AT-92
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Too high a gear change point from
“D
1 ” to “D2 ”, from “D2 ” to “D3 ”,
from “D
3 ” to “D4 ”.
AT- 2 2 3 , "
A/T Does Not Shift: D1→
D2 Or Does Not Kickdown: D4→
D2",AT-225, "A/T Does Not Shift: D2
→ D3" and AT-227, "A/T Does Not
Shift: D3→ D4"
ON vehicle1. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-122, "
DTC P0720 VEHI-
CLE SPEED SENSOR·A/T
(REVOLUTION SEN-
SOR)",AT- 1 9 9 , "DTC
VEHICLE SPEED SEN-
SOR MTR"
3. Shift solenoid valve AAT-170, "
DTC P0750
SHIFT SOLENOID VALVE
A"
4. Shift solenoid valve BAT-175, "
DTC P0755
SHIFT SOLENOID VALVE
B"
Gear change directly from “D1 ” to
“D
3 ” occurs.ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Accumulator servo releaseAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle 3. Brake bandAT-488, "Band Servo Pis-
ton Assembly"
Engine stops when shifting lever
into “R”, “D”, “2” and “1”.ON vehicle1. Engine idling rpmEC-38
[QR25 (WITH
EURO-OBD)], EC-448
[QR25 (WITHOUT EURO-
OBD)], EC-771
[QR20
(WITH EURO-OBD)], EC-
1135 [QR20 (WITHOUT
EURO-OBD)]
2. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
3. Torque converter clutch solenoid valveAT-158, "
DTC P0740
TORQUE CONVERTER
CLUTCH SOLENOID
VA LV E"
4. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle 5. Torque converterAT-425, "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD
AT-98
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Kickdown does not operate when
depressing pedal in “D
4 ” within kick
down vehicle speed.ON vehicle1. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-122, "
DTC P0720 VEHI-
CLE SPEED SENSOR·A/T
(REVOLUTION SEN-
SOR)",AT- 1 9 9 , "DTC
VEHICLE SPEED SEN-
SOR MTR"
3. Shift solenoid valve AAT-170, "
DTC P0750
SHIFT SOLENOID VALVE
A"
4. Shift solenoid valve BAT-175, "
DTC P0755
SHIFT SOLENOID VALVE
B"
Kickdown operates or engine over-
runs when depressing pedal in “D
4 ”
beyond kick down vehicle speed
limit.ON vehicle1. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-122, "
DTC P0720 VEHI-
CLE SPEED SENSOR·A/T
(REVOLUTION SEN-
SOR)",AT- 1 9 9 , "DTC
VEHICLE SPEED SEN-
SOR MTR"
2. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
3. Shift solenoid valve AAT-170, "
DTC P0750
SHIFT SOLENOID VALVE
A"
4. Shift solenoid valve BAT-175, "
DTC P0755
SHIFT SOLENOID VALVE
B"
Races extremely fast or slips in
changing from “D
4 ” to “D3 ” when
depressing pedal.ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
3. Line pressure testAT- 6 7 , "Line Pressure Test"
4. Line pressure solenoid valveAT-163, "
DTC P0745 LINE
PRESSURE SOLENOID
VA LV E"
5. Shift solenoid valve AAT-170, "
DTC P0750
SHIFT SOLENOID VALVE
A"
6. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle7. Brake bandAT-488, "
Band Servo Pis-
ton Assembly"
8. Forward clutchAT-471, "Forward and
Overrun Clutches"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD
AT-102
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Does not change from “12 ” to “11 ”
in “1” position.ON vehicle1. PNP switchAT- 11 0 , "
DTC P0705
PARK/NEUTRAL POSI-
TION (PNP) SWITCH"
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-122, "
DTC P0720 VEHI-
CLE SPEED SENSOR·A/T
(REVOLUTION SEN-
SOR)",AT- 1 9 9 , "DTC
VEHICLE SPEED SEN-
SOR MTR"
3. Shift solenoid valve AAT-170, "
DTC P0750
SHIFT SOLENOID VALVE
A"
4. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle5. Low one-way clutchAT-421, "
OVERHAUL",AT-
425, "Locations of Adjust-
ing Shims, Needle Bear-
ings, Thrust Washers and
Snap Rings"
6. Brake bandAT-488, "Band Servo Pis-
ton Assembly"
7. Low & reverse brakeAT-476, "Low & Reverse
Brake"
Large shock changing from “12 ” to
“1
1 ” in “1” position.ON vehicle 1. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle 2. Low & reverse brakeAT-476, "Low & Reverse
Brake"
Transmission overheats. ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Engine idling rpmEC-38
[QR25 (WITH
EURO-OBD)], EC-448
[QR25 (WITHOUT EURO-
OBD)], EC-771
[QR20
(WITH EURO-OBD)], EC-
1135 [QR20 (WITHOUT
EURO-OBD)]
3. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
4. Line pressure testAT- 6 7 , "Line Pressure Test"
5. Line pressure solenoid valveAT-163, "
DTC P0745 LINE
PRESSURE SOLENOID
VA LV E"
6. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD
AT-104
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
Torque converter is not locked up. ON vehicle1. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
2. Vehicle speed sensor·A/T (Revolution
sensor) and vehicle speed sensor·MTRAT-122, "
DTC P0720 VEHI-
CLE SPEED SENSOR·A/T
(REVOLUTION SEN-
SOR)",AT- 1 9 9 , "DTC
VEHICLE SPEED SEN-
SOR MTR"
3. Engine speed signalAT-127, "DTC P0725
ENGINE SPEED SIGNAL"
4. A/T fluid temperature sensorAT-193, "
DTC BATT/FLUID
TEMP SEN (A/T FLUID
TEMP SENSOR CIRCUIT
AND TCM POWER
SOURCE)"
5. Line pressure testAT- 6 7 , "Line Pressure Test"
6. Torque converter clutch solenoid valveAT-158, "
DTC P0740
TORQUE CONVERTER
CLUTCH SOLENOID
VA LV E"
7. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
Torque converter is not locked up. OFF vehicle 8. Torque converterAT-425, "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
Torque converter clutch piston slip.ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Accelerator pedal position (APP) sensorAT-180, "
DTC P1705
ACCELERATOR PEDAL
POSITION (APP) SEN-
SOR"
3. Line pressure testAT- 6 7 , "Line Pressure Test"
4. Torque converter clutch solenoid valveAT-158, "
DTC P0740
TORQUE CONVERTER
CLUTCH SOLENOID
VA LV E"
5. Line pressure solenoid valveAT-163, "
DTC P0745 LINE
PRESSURE SOLENOID
VA LV E"
6. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
OFF vehicle 7. Torque converterAT-425, "
Locations of
Adjusting Shims, Needle
Bearings, Thrust Washers
and Snap Rings"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD
AT-106
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
TCM Terminals and Reference Value
ECS004QV
PREPARATION
●Measure voltage between each terminal and terminal 25 or 48
by following “TCM INSPECTION TABLE”.
TCM HARNESS CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
(Data are reference values.)
Engine is stopped at “R”, “D”, “2”
and “1” positions.ON vehicle1. Fluid levelAT- 6 3 , "
FLUID LEVEL
CHECK"
2. Torque converter clutch solenoid valveAT-158, "
DTC P0740
TORQUE CONVERTER
CLUTCH SOLENOID
VA LV E"
3. Shift solenoid valve AAT-170, "
DTC P0750
SHIFT SOLENOID VALVE
A"
4. Shift solenoid valve BAT-175, "
DTC P0755
SHIFT SOLENOID VALVE
B"
5. Control valve assemblyAT-414, "
Control Valve
Assembly and Accumula-
tors"
Symptom Condition Diagnostic ItemReference Page
EURO-OBD
SAT216J
SCIA0712E
Te r m i -
nal No.Wire color Item ConditionJudgementstan-
dard(Approx.)
1R/WLine pressure
solenoid valveWhen releasing accelerator pedal
after warming up engine.1.5 - 3.0V
When depressing accelerator pedal
fully after warming up engine.0V
2P/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.0V