A/T Does Not Shift: D2 -> D3

A/T Does Not Shift: D2 -> D3

SYMPTOM: The vehicle does not shift-up from D2 to D3 gear at the specified speed.

DIAGNOSTIC PROCEDURE
1. CONFIRM THE SYMPTOM
Check if vehicle creeps forward in "D" position" and vehicle can be started from D1.
OK or NG
OK >> GO TO 2.
NG >> Refer to "Vehicle Does Not Creep Forward In "D" Position", "Vehicle Cannot Be Started From D1".

2. CHECK SELF-DIAGNOSTIC RESULTS
Execute self-diagnosis.
Do the self-diagnostic results indicate ATF pressure switch 6, high and low reverse clutch solenoid valve, accelerator pedal position sensor, vehicle speed sensor A/T (revolution sensor) and vehicle speed sensor MTR?
YES >> Check the malfunctioning system. Refer to "DTC P1846 ATF PRESSURE SWITCH 6", "DTC P1767 HIGH AND LOW REVERSE CLUTCH SOLENOID VALVE", "DTC P1705 THROTTLE POSITION SENSOR", "DTC P0720 VEHICLE SPEED SENSOR A/T (REVOLUTION SENSOR)", "DTC P1721 VEHICLE SPEED SENSOR MTR".
NO >> GO TO 3.

3. CHECK A/T FLUID LEVEL





Check A/T fluid level. Refer to "Checking A/T Fluid".
OK or NG
OK >> GO TO 4.
NG >> Refill ATF.

4. CHECK LINE PRESSURE





Check line pressure at the engine stall point. Refer to "LINE PRESSURE TEST".
OK or NG
OK >> GO TO 7.
NG - 1 >> Line pressure high. GO TO 5.
NG - 2 >> Line pressure low. GO TO 6.

5. DETECT MALFUNCTIONING ITEM
1. Control valve assembly.
2. Disassemble A/T.
3. Check the following items:
- Oil pump assembly.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

6. DETECT MALFUNCTIONING ITEM
1. Control valve assembly.
2. Disassemble A/T.
3. Check the following items:
- Oil pump assembly.
- Powertrain system.
- Transmission case.
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.

7. CHECK A/T FLUID CONDITION





1. Remove oil pan. Refer to "Control Valve Assembly".
2. Check A/T fluid condition. Refer to "Fluid condition check".
OK or NG
OK >> GO TO 8.
NG >> GO TO 11.

8. DETECT MALFUNCTIONING ITEM
^ Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to "Symptom Chart" (Symptom No. 11).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.

9. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >> GO TO 10.

10. PERFORM TCM INSPECTION
1. Perform TCM input/output signal inspection. Refer to "TCM Input/Output Signal Reference Values"
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.

11. DETECT MALFUNCTIONING ITEM
^ Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to "Symptom Chart" (Symptom No. 11).
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.