NO.5 NO CREEP AT ALL [SJ6A-EL]

id050307801000

5
No creep at all
DESCRIPTION
•  Vehicle does not move in D range and R position when idling on a flat paved road.
POSSIBLE CAUSE
•  Either engine output low or there is clutch slippage.
―  Clutch burnt (C1 clutch, C4 clutch)
•  Line pressure low
•  Shift solenoid B malfunction
•  Shift solenoid C malfunction
•  Shift solenoid E malfunction
•  Shift solenoid G malfunction
•  Line pressure control solenoid malfunction
•  Body GND malfunction
•  Control valve body malfunction
―  Transmission fixed in 4GR (Operation of fail-safe function)
•  Short or open circuit in wiring harness
•  Poor connection of connector
•  Malfunction of electronic parts of output and input system
―  There is no engine torque
•  Torque converter malfunction
―  Foreign material or water mixed in ATF
―  Excessive or low amount of ATF
―  TCM malfunction
Note
•  Before following the troubleshooting steps, make sure that the Automatic Transmission On-Board Diagnostic and Automatic Transmission Basic Inspection are conducted. (See BASIC INSPECTION [SJ6A-EL].)

Diagnostic procedure

STEP

INSPECTION

ACTION
1
•  Does the vehicle creep in P and/or N position?
Yes
Inspect the selector lever.
(See SELECTOR LEVER INSPECTION.)
No
Go to the next step.
2
•  Stop the engine.
•  Inspect the following solenoid:
―  Shift solenoid B
―  Shift solenoid C
―  Shift solenoid E
―  Shift solenoid G
―  Line pressure control solenoid
•  Are these solenoids normal?
Yes
Go to the next step.
No
Inspect the coupler component.
•  If normal, replace the control valve body.
3
•  Remove the torque converter.
•  Inspect the torque converter.
•  Is the torque converter normal?
Yes
Inspect the ATF condition.
•  If a large amount of metal specks are found, overhaul the transmission and repair or replace any malfunctioning parts.
(See Automatic Transmission Workshop Manual [SJ6A-EL].)
•  If a large amount of metal specks are not found, replace the control valve body.
No
Replace the torque converter.
(See TORQUE CONVERTER REMOVAL/INSTALLATION [SJ6A-EL].)
4
•  Verify test results.
―  If normal, return to the diagnostic index to service any additional symptoms.
―  If malfunction remains, inspect the related Service Information and perform repair or diagnosis.
•  If the vehicle is repaired, troubleshooting completed.
•  If the vehicle is not repaired or additional diagnostic information is not available, replace the TCM. (See TCM REMOVAL/INSTALLATION [SJ6A-EL].)