A/T Does Not Shift: D2 ---> D3
A/T Does Not Shift: D2 ---> D3SYMPTOM: A/T does not shift from D2 to D3 at the specified speed on "Cruise Test - Part 1" and "Cruise Test - Part 2".
DIAGNOSTIC PROCEDURE
1. CHECK SYMPTOM
Check symptom. Refer to AT-53, "Check at Idle" and AT-55, "Cruise Test - Part 1". Road Test
Are "Vehicle Does Not Creep Forward in "D", "2" or "2" Position" and "Vehicle Cannot Be Started from D1" OK?
YES >> GO TO 2.
NO >> Go to AT-182, "Vehicle Does Not Creep Forward in "D", "2" or "1" Position" and AT-183, "Vehicle Cannot Be Started from D1".
Vehicle Does Not Creep Forward In "D", "2" or "1" Position
Vehicle Cannot Be Started From D1
2. CHECK A/T POSITION
Check A/T position. Refer to AT-207, "Checking of A/T Position". Procedures
OK or NG
OK >> GO TO 3.
NG >> Adjust A/T position. Refer to AT-207, "Adjustment of A/T Position". Adjustments
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. Refer to AT-96 and AT-149.
P0720
DTC Vehicle Speed Sensor MTR
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 ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-493. P2138
OK or NG
OK >> GO TO 5.
NG >> Repair or replace accelerator pedal position sensor.
5. CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition. Refer to AT-48, "Inspections Before Trouble Diagnosis". Inspections Before Trouble Diagnosis
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
6. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly.
2. Check the following items:
- Shift valve B
- Shift solenoid valve B
- Pilot valve
- Pilot filter
3. Disassemble A/T.
4. Check the following items:
- Servo piston assembly
- High clutch assembly.
- Oil pump assembly.
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
7. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly.
2. Check the following items:
- Shift valve B
- Shift solenoid valve B
- Pilot valve
- Pilot filter
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.
8. CHECK SYMPTOM
Check again. Refer to AT-55, "Cruise Test - Part 1" and AT-58, "Cruise Test - Part 2". Road Test
OK or NG
OK >> INSPECTION END
NG >> GO TO 9.
9. CHECK TCM
1. Check TCM input/output signal. Refer to AT-71, "TCM Terminal and Reference Value". RE4F03B 4 Speed Automatic Transmission
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.