Vehicle Cannot Be Started From D1

8. Vehicle Cannot Be Started From D1

SYMPTOM: Vehicle cannot be started from D1 on Cruise test-Part 1.

1. CHECK SYMPTOM
Is 6. Vehicle Does Not Creep Backward In R Position OK?
Yes or No
Yes >> GO TO 2.
No >> Go to AT-604, 6. Vehicle Does Not Creep Backward In R Position. Vehicle Does Not Creep Backward In R Position

2. CHECK SELF-DIAGNOSTIC RESULTS





Does self-diagnosis show damage to vehicle speed sensor A/T (revolution sensor), shift solenoid valve A, B or vehicle speed sensor MTR after cruise test?
Yes or No
Yes >> Check damaged circuit. Refer to DTC P0720 VEHICLE SPEED SENSOR-A/T (REVOLUTION SENSOR), DTC P0750 SHIFT SOLENOID VALVE A, or DTC P0755 SHIFT SOLENOID VALVE B.
No >> GO TO 3.

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





Check throttle position sensor [accelerator pedal position (APP) sensor]. Refer to DTC P0122, P0123 TP SENSOR and DTC P2122, P2123 APP SENSOR.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace throttle position sensor [accelerator pedal position (APP) sensor].

4. CHECK LINE PRESSURE





Check line pressure at stall point with selector lever in D position. Refer to Line Pressure Test.
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.

5. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly.
2. Check the following items:
- Shift valve A
- Shift valve B
- Shift solenoid valve A
- Shift solenoid valve B
- Pilot valve
- Pilot filter
3. Disassemble A/T.
4. Check the following items:
- Forward clutch assembly
- Forward one-way clutch
- Low one-way clutch
- High clutch assembly
- Torque converter
- Oil pump assembly
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damaged parts.

6. 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 5.

7. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly.
2. Check the following items:
- Shift valve A
- Shift valve B
- Shift solenoid valve A
- Shift solenoid valve B
- Pilot valve
- Pilot filter
OK or NG
OK >> GO TO 8.
NG >> Repair or replace damage 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. Pinout Values and Diagnostic Parameters
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.