NO.24 ENGINE STALLS WHEN SHIFTED TO D OR IN R POSITION [AY6A-EL, AY6AX-EL]

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24 | Engine stalls when shifted to D or in R position
DESCRIPTION | • Engine stalls when shifting from N or P position to D or R position at idle.
POSSIBLE CAUSE | • The malfunction is on the engine control side (e.g. electronic controlled throttle system). Otherwise, the malfunction is in the input/turbine speed sensor (engine sometimes starts) or the TCC circuit (engine always stalls). Note • Before following the troubleshooting steps, make sure that the Automatic Transaxle On-Board Diagnostic and Automatic Transaxle Basic Inspection are conducted. (See BASIC INSPECTION [AY6A-EL, AY6AX-EL].)

Diagnostic procedure

STEP | INSPECTION | ACTION
--- | --- | ---
1 | • Go to symptom troubleshooting No.5 “ENGINE STALLS-AFTER START/AT IDLE”. (See NO.5 ENGINE STALLS-AFTER START/AT IDLE [MZI-3.7].) • Is the engine control system normal? | Yes | Go to the next step.
No | Repair or replace any malfunctioning parts according to the inspection results.
2 | • Perform the stall test. (See MECHANICAL SYSTEM TEST [AY6A-EL, AY6AX-EL].) • Is the stall speed within the specified? | Yes | Inspect for bending, damage, corrosion or kinks of the oil cooler pipes. If normal, replace the control valve body. (See CONTROL VALVE BODY REMOVAL/INSTALLATION [AY6A-EL, AY6AX-EL].) If problem remains, replace the transaxle. (See AUTOMATIC TRANSAXLE REMOVAL/INSTALLATION [AY6A-EL, AY6AX-EL].)
No | Replace the torque converter. (See TORQUE CONVERTER REMOVAL/INSTALLATION [AY6A-EL, AY6AX-EL].)
3 | • Verify test results. ― If normal, return to the diagnostic index to service any additional symptoms. ― If malfunction remains, inspect the related Service Bulletins and/or On-line Repair 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.