A/T Does Not Shift: D1-D2 or Does Not Kickdown: D4-D2

9. A/T Does Not Shift: D1 --> D2 or Does Not Kickdown: D4 --> D2

SYMPTOM:
A/T does not shift from D1 to D2 at the specified speed.
A/T does not shift from D4 to D2 when depressing accelerator pedal fully at the specified speed.

1. CHECK SYMPTOM
Are "7. Vehicle Does Not Creep Forward In D, 3, 2 Or 1 Position" and "8. Vehicle Cannot Be Started From D1 " OK?
Yes or No
Yes >>GO TO 2.
No >>Go to "7. Vehicle Does Not Creep Forward in D, 3, 2 or 1 Position" and "8. Vehicle Cannot Be Started From D1".

2. CHECK SELF-DIAGNOSTIC RESULTS
With CONSULT-II
Does "TCM INPUT SIGNALS" in "DATA MONITOR" show damage to park/neutral position (PNP) switch circuit?

Without CONSULT-II





Does self-diagnosis show damage to park/neutral position (PNP) switch circuit?
Yes or No
Yes >>Check park/neutral position (PNP) switch circuit.
No >>GO TO 3.

3. CHECK VEHICLE SPEED SENSOR A/T AND VEHICLE SPEED SENSOR MTR CIRCUIT
Check vehicle speed sensor A/T (revolution sensor) and vehicle speed sensor MTR circuit.
OK or NG
OK >>GO TO 4.
NG >>Repair or replace vehicle speed sensor A/T (revolution sensor) and vehicle speed sensor MTR circuits.

4. CHECK THROTTLE POSITION SENSOR [ACCELERATOR PEDAL POSITION (APP) SENSOR]





Check throttle position sensor [accelerator pedal position (APP) sensor].
OK or NG
OK >>GO TO 5.
NG >>Repair or replace throttle position sensor [accelerator pedal position (APP) sensor].

5. CHECK A/T FLUID CONDITION





1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >>GO TO 7.
NG >>GO TO 6.

6. DETECT MALFUNCTIONING ITEM
1. Remove control valve.
2. Check the following items:
- Shift valve A
- Shift solenoid valve A
- Pilot valve
- Pilot filter
3. Disassemble A/T.
4. Check the following items:
- Servo piston assembly
- Brake band
- Oil pump assembly
OK or NG
OK >>GO TO 8.
NG >>Repair or replace damaged parts.

7. DETECT MALFUNCTIONING ITEM
1. Remove control valve.
2. Check the following items:
- Shift valve A
- Shift solenoid valve A
- Pilot valve
- Pilot filter
OK or NG
OK >>GO TO 8.
NG >>Repair or replace damaged parts.

8. CHECK SYMPTOM
Check again.
OK or NG
OK >>INSPECTION END
NG >>GO TO 9.

9. CHECK TCM INSPECTION
1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >>Repair or replace damaged parts.