NO.2 VEHICLE MOVES IN N POSITION [SJ6A-EL]

id050307800700

2 | Vehicle moves in N position
DESCRIPTION | • Vehicle creeps in N position. • Vehicle creeps if brake pedal is not depressed in N position.
POSSIBLE CAUSE | • If the vehicle moves in N position, basically, the malfunction is in the AT. Since a malfunction in the sensor circuit or output circuit is the cause of the malfunction in the AT, inspect the sensors, output circuit, and the related wiring harnesses. ― Clutch burnt (C1 clutch, C4 clutch, One-way clutch) • Line pressure low • Shift solenoid B malfunction • Shift solenoid C malfunction • Shift solenoid E malfunction • Shift solenoid G malfunction • Control valve body malfunction ― Selector lever position disparity (Although the selector indicator shows N position, the hydraulic circuit shows D range or R position) • TR switch mis-adjustment 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 when selector lever is moved slightly in N position? | Yes | Go to the next step.
No | Inspect and adjust the selector lever and TR switch. (See SELECTOR LEVER INSPECTION.) (See TRANSMISSION RANGE (TR) SWITCH INSPECTION [SJ6A-EL].) (See TRANSMISSION RANGE (TR) SWITCH ADJUSTMENT [SJ6A-EL].)
2 | • Inspect the following solenoid: (See SOLENOID VALVE INSPECTION [SJ6A-EL].) ― Shift solenoid B ― Shift solenoid C ― Shift solenoid E ― Shift solenoid G • Are these solenoids normal? | Yes | Overhaul the transmission and repair or replace any malfunctioning parts (clutch slippage, worm). (See AUTOMATIC TRANSMISSION REMOVAL/INSTALLATION [SJ6A-EL].) (See Automatic Transmission Workshop Manual [SJ6A-EL].)
No | Inspect the coupler component. • If normal, replace the control valve body. (See CONTROL VALVE BODY REMOVAL [SJ6A-EL].) (See CONTROL VALVE BODY INSTALLATION [SJ6A-EL].)
3 | • 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].)