A/T Does Not Shift: D1 ---> D2

A/T Does Not Shift: D1 ---> D2

SYMPTOM: 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 TM-126, "Vehicle Does Not Creep Forward in "D" Position", TM-129, "Vehicle Cannot Be Started from D1".
Vehicle Does Not Creep Forward In "D" Position
Vehicle Cannot Be Started From D1

2. CHECK SELF-DIAGNOSTIC RESULTS
Perform self-diagnosis. Refer to TM-33, "CONSULT-III Function (TRANSMISSION)". Scan Tool Testing and Procedures
Do the self-diagnostic results indicate, 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. Refer to TM-85, "Diagnosis Procedure", EC-375, "Diagnosis Procedure", TM-50, "Diagnosis Procedure", TM-75, "Diagnosis Procedure".
P1762
P2138
P0720
P1721
NO >> GO TO 3.

3. CHECK A/T FLUID LEVEL





Check A/T fluid level.
OK or NG
OK >> GO TO 4.
NG >> Refill [1][2]ATF.

4. CHECK LINE PRESSURE





Check line pressure at the engine stall point. Refer to TM-189, "Inspection and Judgment". 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. Check 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. Check 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 TM-152, "Symptom Table" (Symptom No.10). Symptom Table
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.

9. CHECK SYMPTOM
Check again. Refer to TM-192, "Cruise Test - Part 1", TM-194, "Cruise Test - Part 2", TM-195, "Cruise Test - Part 3".
Cruise Test - Part 1
Cruise Test - Part 2
Cruise Test - Part 3
OK or NG
OK >> INSPECTION END
NG >> GO TO 10.

10. PERFORM TCM INSPECTION
1. Perform TCM input/output signals inspection. Refer to TM-104, "Reference Value". Pinout Values and Diagnostic Parameters
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. Refer to TM-152, "Symptom Table" (Symptom No.10). Symptom Table
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.