Diagnostic Procedure

WARNING: This page is about a different variant/trim than selected.

DIAGNOSTIC PROCEDURE

Step	Action	YES	NO
1	PERFORM DTC CHECK Perform "DTC check". Refer to [SDT FUNCTION (AT) ]. Is any malfunction detected by "DTC check"?	Check the malfunctioning system. Refer to [SDT FUNCTION (AT) ].	GO TO 2.
2	ENGINE IDLE SPEED Check the engine idle speed. Refer to [IDLE SPEED AND IGNITION TIMING CHECK ] (QR25DE) or [IDLE SPEED AND IGNITION TIMING CHECK ] (VQ40DE). OK or NG	GO TO 3.	Repair.
3	CHECK CONTROL CABLE Check the control cable. Refer to [SHIFT CONTROL SYSTEM: INSPECTION AND ADJUSTMENT ]. OK or NG	GO TO 4.	Adjust control cable. Refer to [SHIFT CONTROL SYSTEM: INSPECTION AND ADJUSTMENT ].
4	CHECK A/T FLUID LEVEL Check the A/T fluid level. Refer to [CHECKING THE A/T FLUID (ATF) ]. OK or NG	GO TO 5.	Refill ATF.
5	CHECK LINE PRESSURE Check line pressure at idle with selector lever in "D" position. Refer to [LINE PRESSURE TEST ]. OK or NG	GO TO 8.	Line pressure high: GO TO 6.
6	DETECT MALFUNCTIONING ITEM Check control valve with TCM. Refer to [CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2: ON-VEHICLE REPAIR ]. Disassemble A/T. Refer to [TRANSMISSION ASSEMBLY DISASSEMBLY ]. Check the following. Oil pump assembly. Refer to [OIL PUMP: DISASSEMBLY AND ASSEMBLY ]. OK or NG	GO TO 8.	Repair or replace damaged parts.
7	DETECT MALFUNCTIONING ITEM Check control valve with TCM. Refer to [CONTROL VALVE WITH TCM AND A/T FLUID TEMPERATURE SENSOR 2: ON-VEHICLE REPAIR ]. Disassemble A/T. Refer to [TRANSMISSION ASSEMBLY DISASSEMBLY ]. Check the following. Oil pump assembly. Refer to [OIL PUMP: DISASSEMBLY AND ASSEMBLY ]. Power train system. Refer to [TRANSMISSION ASSEMBLY DISASSEMBLY ]. Transmission case. Refer to [TRANSMISSION ASSEMBLY DISASSEMBLY ]. OK or NG	GO TO 8.	Repair or replace damaged parts.
8	CHECK A/T FLUID CONDITION Remove oil pan. Refer to [OIL PAN: REMOVAL AND INSTALLATION ]. Check A/T fluid condition. Refer to [CHECKING THE A/T FLUID (ATF) ]. OK or NG	GO TO 10.	GO TO 9.
9	DETECT MALFUNCTIONING ITEM Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to [SYMPTOM CHART ] (Symptom No. 1). OK or NG	GO TO 10.	Repair or replace damaged parts.
10	CHECK SYMPTOM Check again. Refer to [ROAD TEST ]. OK or NG	INSPECTION END	GO TO 11.
11	PERFORM TCM INSPECTION Perform TCM input/output signals inspection. Refer to [TCM TERMINALS AND REFERENCE VALUES ]. If NG, recheck A/T assembly harness connector terminals for damage or loose connection with harness connector. OK or NG	INSPECTION END	Repair or replace damaged parts.