TROUBLE DIAGNOSES FOR SYMPTOMS
AT-245
[EURO-OBD]
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B
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3.CHECK VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR) AND CHECK VEHICLE SPEED
SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuit. Refer toAT-392,
"VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)"andAT-142, "DTC P0720 VEHICLE SPEED
SENSOR·A/T (REVOLUTION SENSOR)"(Except for Euro-OBD)./ Refer toAT-397, "DTC VEHICLE SPEED
SENSOR MTR"andAT-222, "DTC VEHICLE SPEED SENSOR MTR"(EURO-OBD).
OK or NG
OK >> GOTO4
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR
circuits.
4.CHECK THROTTLE POSITION SENSOR*
*: This sensor means accelerator pedal position (APP) sensor.
Check throttle position sensor. Refer to "EC-´´", “DTC P0121
ACCELERATOR PEDAL POSITION(APP)SENSOR”. —Except for
Euro-OBD/Refer to "EC-´´", “DTC P0121 ACCELERATOR PEDAL
POSITION(APP)SENSOR”. — Euro-OBD
OK or NG
OK >> GOTO5
NG >> Repair or replace accelerator pedal position (app) sen-
sor.
5.CHECK A/T FLUID CONIDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GOTO6
NG >> GOTO8
6.DETECT MALFUNCTIONING ITEM
1. Remove control valve. Refer toAT-453, "
Installation".
2. Check the following items:
–Shift valve A
–Shift solenoid valve A (AT-406, "SHIFT SOLENOID VALVE A": Except for Euro-OBD/AT-193, "DTC
P0750 SHIFT SOLENOID VALVE A":Euro-OBD)
–Pilot valve
–Pilot filter
OK or NG
OK >> GOTO7
NG >> Repair or replace damaged parts.
PBIB0498E
SAT171B
TROUBLE DIAGNOSES FOR SYMPTOMS
AT-247
[EURO-OBD]
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AT
2.CHECK PNP SWITCH CIRCUIT
With CONSULT-II
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage to PNP switch circuit?
Without CONSULT-II
Does self-diagnosis show damage to PNP switch circuit?
Ye s o r N o
Yes >> Check PNP switch circuit. Refer to “21. TCM Self-diag-
nosis Does Not Activate (PNP & Overdrive Control
switches, and Throttle Position sensor Circuit Checks)”,
AT-260, "
21. TCM Self-diagnosis Does Not Activate
(PNP & Overdrive Control Switches, and Throttle Posi-
tion Sensor Circuit Checks)".
No >> GOTO3
3.CHECK THROTTLE POSITION SENSOR*
*: This sensor means accelerator pedal position (APP) senror.
Check throttle position sensor. Refer to "EC-´´", “DTC P0121
ACCELERATOR PEDAL POSITION(APP)SENSOR”. —Except for
Euro-OBD/Refer to "EC-´´", “DTC P0121 ACCELERATOR PEDAL
POSITION(APP)SENSOR”. — Euro-OBD
OK or NG
OK >> GOTO4
NG >> Repair or replace throttle position sensor.
4.CHECKA/TFLUIDCONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GOTO5
NG >> GOTO7
SCIA0706E
PBIB0498E
SAT171B
AT-250
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
2.CHECK SELF-DIAGNOSTIC RESULTS
With CONSULT-II
Does self-diagnosis, after cruise test, show damage to any of the following circuits?
lPNP switch
lOverdrive control switch
lA/T fluid temperature sensor
lVehicle speed sensor·A/T (revolution sensor)
lShift solenoid valve A or B
lVehicle speed sensor·MTR
Ye s o r N o
Ye s > >lCheck damaged circuit. Refer to the following items.
Except for Euro-OBD
–VEHICLE SPEED SENSOR·A/T (REVOLUTION
SENSOR):AT-392, "
VEHICLE SPEED SENSOR·A/T
(REVOLUTION SENSOR)"
–SHIFT SOLENOID VALVE A:AT-406, "SHIFT SOLE-
NOID VALVE A"
–SHIFT SOLENOID VALVE B:AT- 4 11 , "SHIFT SOLE-
NOID VALVE B"
–BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER
SOURCE):AT-426, "
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND
TCM POWER SOURCE)"
–VHCL SPEED SEN·MTR VEHICLE SPEED SENSOR·MTR:AT - 3 9 7 , "DTC VEHICLE SPEED
SENSOR MTR"
–21. TCM Self-diagnosis Does Not Activate (PNP & Overdrive Control Switches, and Throttle
Position sensor Circuit Checks):AT - 2 6 0 , "
21. TCM Self-diagnosis Does Not Activate (PNP &
Overdrive Control Switches, and Throttle Position Sensor Circuit Checks)"
Euro-OBD
–VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR):AT-142, "DTC P0720 VEHICLE
SPEED SENSOR·A/T (REVOLUTION SENSOR)"
–SHIFT SOLENOID VALVE A:AT-193, "DTC P0750 SHIFT SOLENOID VALVE A"
–SHIFT SOLENOID VALVE B:AT-198, "DTC P0755 SHIFT SOLENOID VALVE B"
–BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER
SOURCE):AT-216, "
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT
AND TCM POWER SOURCE)"
–VHCL SPEED SEN·MTR VEHICLE SPEED SENSOR·MTR:AT - 2 2 2 , "DTC VEHICLE SPEED
SENSOR MTR"
–21. TCM Self-diagnosis Does Not Activate (PNP & Overdrive Control Switches, and Throttle
Position sensor Circuit Checks):AT - 2 6 0 , "
21. TCM Self-diagnosis Does Not Activate (PNP &
Overdrive Control Switches, and Throttle Position Sensor Circuit Checks)"
No >> GOTO3
SCIA0771E
TROUBLE DIAGNOSES FOR SYMPTOMS
AT-251
[EURO-OBD]
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AT
3.CHECK THROTTLE POSITION SENSOR*
*: This sensor means accelerator pedal position (APP) senror.
Check throttle position sensor. Refer to "EC-´´", “DTC P0121
ACCELERATOR PEDAL POSITION(APP)SENSOR”. —Except for
Euro-OBD/Refer to "EC-´´", “DTC P0121 ACCELERATOR PEDAL
POSITION(APP)SENSOR”. — Euro-OBD
OK or NG
OK >> GOTO4
NG >> Repair or replace throttle position sensor.
4.CHECKA/TFLUIDCONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GOTO5
NG >> GOTO7
5.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer toAT-453, "
Installation".
2. Check the following items:
–Shift valve B
–Overrun clutch control valve
–Shift solenoid valve B
–Pilot valve
–Pilot filter
OK or NG
OK >> GOTO6
NG >> Repair or replace damaged parts.
6.CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
PBIB0498E
SAT171B
AT-252
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
7.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer toAT-453, "
Installation".
2. Check the following items:
–Shift valve B
–Overrunclutchcontrolvalve
–Shift solenoid valve B
–Pilot valve
–Pilot filter
3. Disassemble A/T.
4. Check the following items:
–Servo piston assembly
–Brake band
–Torque converter
–Oil pump assembly
OK or NG
OK >> GOTO6
NG >> Repair or replace damaged parts.
12. A/T Does Not Perform Lock-upECS004T5
SYMPTOM:
A/T does not perform lock-up at the specified speed.
1.CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to torque converter clutch sole-
noid valve circuit after cruise test?
Ye s o r N o
Yes >> Check torque converter clutch solenoid valve circuit.
Refer toAT-421, "
TORQUE CONVERTER CLUTCH
SOLENOID VALVE"(Except for Euro-OBD)/AT-181,
"DTC P0740 TORQUE CONVERTER CLUTCH SOLE-
NOID VALVE"(Euro-OBD).
No >> GOTO2
2.CHECK THROTTLE POSITION SENSOR*
*: This sensor means accelerator pedal position (APP) senror.
Check throttle position sensor. Refer to "EC-´´", “DTC P0121
ACCELERATOR PEDAL POSITION(APP)SENSOR”. —Except for
Euro-OBD/Refer to "EC-´´", “DTC P0121 ACCELERATOR PEDAL
POSITION(APP)SENSOR”. — Euro-OBD
OK or NG
OK >> GOTO3
NG >> Repair or replace throttle position sensor.
SCIA0772E
PBIB0498E
TROUBLE DIAGNOSES FOR SYMPTOMS
AT-255
[EURO-OBD]
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AT
Lock-up is not released when accelerator pedal is released.
1.CHECK THROTTLE POSITION SENSOR* CIRCUIT
*: This sensor means accelerator pedal position (app) senror.
With CONSULT-II
Does “TCM INPUT SIGNALS” in “DATA MONITOR” show damage throttle position sensor circuit?
Without CONSULT-II
Does self-diagnosis show damage to throttle position sensor circuit?
Ye s o r N o
Yes >> Check throttle position sensor circuit. Refer to “21. TCM
Self-diagnosis Does Not Activate (PNP & Overdrive
Control switches, and Throttle Position Sensor )”,AT-
260, "21. TCM Self-diagnosis Does Not Activate (PNP &
Overdrive Control Switches, and Throttle Position Sen-
sor Circuit Checks)".
No >> GOTO2
2.CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
15. Engine Speed Does Not Return To Idle (Light Braking D4®D3)ECS004T8
SYMPTOM:
lEngine speed does not smoothly return to idle when A/T shifts from D4to D3.
lVehicle does not decelerate by engine brake when turning overdrive control switch OFF.
lVehicle does not decelerate by engine brake when shifting A/T from “D” to “2” position.
1.CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to overrun clutch solenoid valve
circuit after cruise test?
Ye s o r N O
Yes >> Check overrun clutch solenoid valve circuit. Refer toAT-
416, "OVERRUN CLUTCH SOLENOID VALVE"
(Except for Euro-OBD)/AT - 2 0 8 , "DTC P1760 OVERRUN
CLUTCH SOLENOID VALVE"(Euro-OBD).
No >> GOTO2
SAT367J
SCIA0774E
AT-256
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
2.CHECK THROTTLE POSITION SENSOR*
*: This sensor means accelerator pedal position (APP) senror.
Check throttle position sensor. Refer to "EC-´´", “DTC P0121
ACCELERATOR PEDAL POSITION(APP)SENSOR”. —Except for
Euro-OBD/Refer to "EC-´´", “DTC P0121 ACCELERATOR PEDAL
POSITION(APP)SENSOR”. — Euro-OBD
OK or NG
OK >> GOTO3
NG >> Repair or replace accelerator pedal position (app) sen-
sor. (AT- 4 0 1 , "
ACCELE RATOR PEDAL POSITION
(APP) SENSOR": Except for Euro-OBD/AT-203, "DTC
P1705 ACCELERATOR PEDAL POSITION (APP) SEN-
SOR": Euro-OBD)
3.CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GOTO4
NG >> GOTO6
4.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer toAT-453, "
Installation".
2. Check the following items:
–Overrunclutchcontrolvalve
–Overrun clutch reducing valve
–Overrun clutch solenoid valve (AT-416, "OVERRUN CLUTCH SOLENOID VALVE": Except for Euro-OBD/
AT-208, "
DTC P1760 OVERRUN CLUTCH SOLENOID VALVE":Euro-OBD)
OK or NG
OK >> GOTO5
NG >> Repair or replace damaged parts.
5.CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
PBIB0498E
SAT171B
TROUBLE DIAGNOSES FOR SYMPTOMS
AT-257
[EURO-OBD]
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AT
6.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer toAT-453, "
Installation".
2. Check the following items:
–Overrun clutch control valve
–Overrun clutch reducing valve
–Overrun clutch solenoid valve (AT - 4 1 6 , "OVERRUN CLUTCH SOLENOID VALVE": Except for Euro-OBD/
AT-208, "
DTC P1760 OVERRUN CLUTCH SOLENOID VALVE": Euro-OBD)
3. Disassemble A/T.
4. Check the following items:
–Overrunclutchassembly
–Oil pump assembly
OK or NG
OK >> GOTO5
NG >> Repair or replace damaged parts.
16. Vehicle Does Not Start From D1ECS004T9
SYMPTOM:
Vehicle does not start from D
1on Cruise test — Part 2.
1.CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to vehicle speed sensor·A/T (rev-
olution sensor), shift solenoid valve A, B or vehicle speed sen-
sor·MTR after cruise test?
Ye s o r N o
Ye s > >lCheck damaged circuit. Refer to the following items.
Except for Euro-OBD
–VEHICLE SPEED SENSOR·A/T (REVOLUTION
SENSOR):AT - 3 9 2 , "
VEHICLE SPEED SENSOR·A/T
(REVOLUTION SENSOR)"
–SHIFT SOLENOID VALVE A:AT- 4 0 6 , "SHIFT SOLE-
NOID VALVE A"
–SHIFT SOLENOID VALVE B:AT- 4 11 , "SHIFT SOLENOID VALVE B"
–VHCL SPEED SEN·MTR VEHICLE SPEED SENSOR·MTR:AT-397, "DTC VEHICLE SPEED
SENSOR MTR"
Euro-OBD
–VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR):AT-142, "DTC P0720 VEHICLE
SPEED SENSOR·A/T (REVOLUTION SENSOR)"
–SHIFT SOLENOID VALVE A:AT-193, "DTC P0750 SHIFT SOLENOID VALVE A"
–SHIFT SOLENOID VALVE B:AT-198, "DTC P0755 SHIFT SOLENOID VALVE B"
–VHCL SPEED SEN·MTR VEHICLE SPEED SENSOR·MTR:AT-222, "DTC VEHICLE SPEED
SENSOR MTR"
No >> GOTO2
2.CHECK SYMPTOM
Check again.
OK or NG
OK >> Go to 8. Vehicle Cannot Be Started From D1,AT-242, "8. Vehicle Cannot Be Started From D1".
NG >> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
SCIA0775E