A/T Does Not Shift: D1->D2
A/T Does Not Shift: D1 -> D2SYMPTOM: The vehicle does not shift-up from the D1 to D2 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 Does Not Creep Forward In "D" Position
Refer to "Vehicle Cannot Be Started From D1". Vehicle Cannot Be Started From D1
2. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to "SELF-DIAGNOSTIC RESULT MODE". Reading Diagnostic Trouble Codes
Do the self-diagnostic results indicate ATF pressure switch 5, direct clutch solenoid valve, accelerator pedal position sensor, vehicle speed sensor A/T (revolution sensor) and vehicle speed sensor MTR?
YES >> Check the malfunctioning system.
NO >> GO TO 3.
3. CHECK A/T FLUID LEVEL
Check A/T fluid level.
OK or NG
OK >> GO TO 4.
NG >> Refill ATF.
4. CHECK LINE PRESSURE
Check line pressure at the engine stall point.
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 with TCM.
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 with TCM.
2. Disassemble A/T.
3. Check the following items:
- Oil pump assembly.
- Power train 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.
2. Check A/T fluid condition.
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.10). Symptom Chart
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
9. CHECK SYMPTOM
Check again. Symptom Chart
OK or NG
OK >> INSPECTION END
NG >> GO TO 10.
10. PERFORM TCM INSPECTION
1. Perform TCM input/output signals inspection. Refer to "TCM Input/Output Signal Reference Values". TCM Input/Output Signal Reference Values
2. If NG, recheck A/T assembly harness connector 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.
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.