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-226, 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), overrun clutch solenoid valve, torque converter clutch solenoid valve, 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 P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE, DTC P0750 SHIFT SOLENOID VALVE A, DTC P0755 SHIFT SOLENOID VALVE B, DTC P1760 OVERRUN IN CLUTCH SOLENOID VALVE or AT one DTC VHCL SPEED SEN MTR VEHICLE SPEED SENSOR MTR.
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.
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 5.
NG >> GO TO 6.

5. CHECK A/T FLUID CONDITION





1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GO TO 6.
NG >> GO TO 8.

6. 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 7.
NG >> Repair or replace damaged parts.

7. CHECK SYMPTOM
Check again.
OK or NG
OK >> INSPECTION END
NG >>
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.

8. 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:
- High clutch assembly
- Torque converter
- Oil pump assembly
- Reverse clutch assembly
- Low and reverse brake assembly
OK or NG,
OK >> GO TO 7.
NG >> Repair or replace damaged parts.