Diagnostic Procedure

STEP	INSPECTION		ACTION
1	VERIFY RELATED REPAIR INFORMATION AVAILABILITY Verify related Service Bulletins and/or on-line repair information availability. Is any related repair information available?	Yes	Perform repair or diagnosis according to the available repair information. If the vehicle is not repaired, go to the next step.
1		No	Go to the next step.
2	INSPECT COUPLER COMPONENT CONNECTOR FOR POOR CONNECTION Switch the ignition OFF. Disconnect the coupler component connector. Inspect for poor connection (such as damaged/pulled-out pins, corrosion) Is there any malfunction?	Yes	Repair or replace the terminal, then go to Step 8.
2		No	Go to the next step.
3	INSPECT PRESSURE CONTROL SOLENOID A CIRCUIT FOR SHORT TO POWER SUPPLY Switch the ignition OFF. Measure the voltage between the following circuits: Coupler component terminal D (wiring harness-side) and body GND Coupler component terminal I (wiring harness-side) and body GND Is the voltage B+ ?	Yes	Repair or replace the wiring harness for a possible short to power supply, then go to Step 8.
3		No	Go to the next step.
4	INSPECT PRESSURE CONTROL SOLENOID A CIRCUIT FOR SHORT TO GND Switch the ignition OFF. Inspect for continuity between the following circuits: Coupler component terminal D (wiring harness-side) and body GND Coupler component terminal I (wiring harness-side) and body GND Is there continuity?	Yes	Repair or replace the wiring harness for a possible short to GND, then go to Step 8.
4		No	Go to the next step.
5	INSPECT PRESSURE CONTROL SOLENOID A Inspect pressure control solenoid A. (See SOLENOID VALVE INSPECTION .) Is there any malfunction?	Yes	Replace the pressure control solenoid A, then go to Step 8. (See SOLENOID VALVE REMOVAL/INSTALLATION .)
5		No	Go to the next step.
6	INSPECT TCM CONNECTOR FOR POOR CONNECTION Switch the ignition OFF. Disconnect the TCM connector. Inspect for poor connection (such as damaged/pulled-out pins, corrosion) Is there any malfunction?	Yes	Repair or replace the terminal, then go to Step 8.
6		No	Go to the next step.
7	INSPECT PRESSURE CONTROL SOLENOID A CIRCUIT FOR OPEN CIRCUIT Switch the ignition OFF. Inspect for continuity between the following circuits: Coupler component terminal D (wiring harness-side) and TCM terminal AD (wiring harness-side) Coupler component terminal I (wiring harness-side) and TCM terminal AE (wiring harness-side) Is there continuity?	Yes	Go to the next step.
7		No	Repair or replace the wiring harness for a possible open circuit, then go to the next step.
8	VERIFY DTC TROUBLESHOOTING COMPLETED Make sure to reconnect all the disconnected connectors. Clear the DTC using the M-MDS. Perform the following procedure to ensure that the DTC has been resolved: Make sure that the gears shift smoothly from 1GR to 5GR. Make sure that TCC operates smoothly. Is the same DTC present?	Yes	Replace the TCM, then go to the next step. (See TCM REMOVAL/INSTALLATION .)
8		No	Go to the next step.
9	VERIFY NO DTCs ARE PRESENT Perform the "Reading DTCs Procedure". (See ON-BOARD DIAGNOSTIC SYSTEM DTC INSPECTION -- AUTOMATIC TRANSAXLE .) Are any DTCs present?	Yes	Go to the applicable DTC inspection. (See ON-BOARD DIAGNOSTIC SYSTEM DTC TABLE .)
9		No	DTC troubleshooting completed.