NO.24 ENGINE STALLS WHEN SHIFTED TO D, 2, 1 RANGES, OR IN R POSITION[GF4AX-EL]

• The malfunction is on the engine control side (e.g. IAC system). Otherwise, the malfunction in the input/turbine speed sensor (engine sometimes starts) or the TCC piston circuit (engine always stalls).

STEP	INSPECTION	ACTION
1	Go to No.5 “ENGINE STALLS-AFTER START/AT IDLE”. (See NO.5 ENGINE STALLS-AFTER START/AT IDLE[L3].) 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	Inspect the value at the following PCM PIDs using the M-MDS. (See PCM INSPECTION[L3].) • TRD • TRL • TRR • TRS • TR Are the PID values normal?	Yes	Go to the next step.
No	Inspect the TR switch and related wiring harness: for intermittent open/short circuit during vibration.
3	Turn the ignition switch to the ON position. Connect the M-MDS to DLC-2. Simulate TCC PID for ON. Is operating sound of the TCC control solenoid valve heard?	Yes	Go to the next step.
No	Inspect connector of the TCC control solenoid valve terminal on the ATX for bent terminal, damage, corrosion or looseness. Inspect for stuck TCC control solenoid valve? (See SOLENOID VALVE INSPECTION[GF4AX-EL].) If the shift solenoids are normal, inspect for open or short circuit between the PCM terminal 1H and the TCC control solenoid valve terminal D.
4	Remove the torque converter. Inspect the torque converter. (See ATX Workshop Manual (GF4AX-EL)) Is the torque converter normal?	Yes	Inspect for bent, damaged or kinks of oil cooler line pipes. If normal, replace the control valve body and repair or replace any malfunctioning parts. (See ATX Workshop Manual (GF4AX-EL)) If any problem remains, replace the transaxle and repair or replace any malfunctioning parts. (See ATX Workshop Manual (GF4AX-EL))
No	Replace the torque converter.
5	• Verify the test results. ― If normal, return to the diagnostic index to service any additional symptoms. ― If the malfunction remains, inspect the related Service Information and perform repair or diagnosis. • If the vehicle is repaired, troubleshooting is completed. • If the vehicle is not repaired or additional diagnostic information is not available, replace the PCM.

STEP

INSPECTION

ACTION

Go to No.5 “ENGINE STALLS-AFTER START/AT IDLE”.

(See NO.5 ENGINE STALLS-AFTER START/AT IDLE[L3].)

Is the engine control system normal?

Yes

Go to the next step.

Repair or replace any malfunctioning parts according to the inspection results.

Inspect the value at the following PCM PIDs using the M-MDS.

(See PCM INSPECTION[L3].)

• TRD

• TRL

• TRR

• TRS

• TR

Are the PID values normal?

Yes

Go to the next step.

Inspect the TR switch and related wiring harness: for intermittent open/short circuit during vibration.

Turn the ignition switch to the ON position.

Connect the M-MDS to DLC-2.

Simulate TCC PID for ON.

Is operating sound of the TCC control solenoid valve heard?

Yes

Go to the next step.

Inspect connector of the TCC control solenoid valve terminal on the ATX for bent terminal, damage, corrosion or looseness.

Inspect for stuck TCC control solenoid valve?

(See SOLENOID VALVE INSPECTION[GF4AX-EL].)

If the shift solenoids are normal, inspect for open or short circuit between the PCM terminal 1H and the TCC control solenoid valve terminal D.

Remove the torque converter.

Inspect the torque converter.

(See ATX Workshop Manual (GF4AX-EL))

Is the torque converter normal?

Yes

Inspect for bent, damaged or kinks of oil cooler line pipes. If normal, replace the control valve body and repair or replace any malfunctioning parts.

(See ATX Workshop Manual (GF4AX-EL))

If any problem remains, replace the transaxle and repair or replace any malfunctioning parts.

(See ATX Workshop Manual (GF4AX-EL))

Replace the torque converter.

• Verify the test results.

― If normal, return to the diagnostic index to service any additional symptoms.

― If the malfunction remains, inspect the related Service Information and perform repair or diagnosis.

• If the vehicle is repaired, troubleshooting is completed.

• If the vehicle is not repaired or additional diagnostic information is not available, replace the PCM.

24	Engine stalls when shifted to D, 2, 1 ranges, or in R position
DESCRIPTION	• Engine stalls when shifting from N or P position to D, 2, 1 ranges or R position at idle.
POSSIBLE CAUSE	• The malfunction is on the engine control side (e.g. IAC system). Otherwise, the malfunction in the input/turbine speed sensor (engine sometimes starts) or the TCC piston 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.