Diagnostic Procedure

STEP	INSPECTION		ACTION
1	VERIFY FREEZE FRAME DATA HAS BEEN RECORDED Has the FREEZE FRAME DATA been recorded on the repair order?	Yes	Go to the next step.
1		No	Record the FREEZE FRAME DATA on the repair order, then go to the next step.
2	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.
2		No	Go to the next step.
3	INSPECT VSS CONNECTOR FOR POOR CONNECTION Switch the ignition OFF. Disconnect the VSS 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 11.
3		No	Go to the next step.
4	INSPECT VSS POWER CIRCUIT FOR OPEN CIRCUIT Switch the ignition ON (Engine off). Measure the voltage between VSS terminal A (wiring harness-side) and body GND. Is the voltage B+?	Yes	Go to the next step.
4		No	Repair or replace the wiring harness for a possible open circuit, then go to Step 11.
5	INSPECT VSS CIRCUIT FOR SHORT TO GND Switch the ignition OFF. Inspect for continuity between the following circuits: VSS terminal A (wiring harness-side) and body GND VSS terminal B (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 11.
5		No	Go to the next step.
6	INSPECT VSS SIGNAL CIRCUIT FOR SHORT TO POWER SUPPLY Switch the ignition ON (Engine off). Measure the voltage between VSS terminal B (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 11.
6		No	Go to the next step.
7	INSPECT VSS GND CIRCUIT FOR OPEN CIRCUIT Switch the ignition OFF. Inspect for continuity between VSS terminal C (wiring harness-side) and body GND 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 Step 11.
8	INSPECT VSS Inspect the VSS. (See VEHICLE SPEED SENSOR (VSS) INSPECTION .) Is there any malfunction?	Yes	Replace the VSS, then go to Step 11. (See VEHICLE SPEED SENSOR (VSS) REMOVAL/INSTALLATION .)
8		No	Go to the next step.
9	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 11.
9		No	Go to the next step.
10	INSPECT VSS CIRCUIT FOR OPEN CIRCUIT Switch the ignition OFF. Inspect for continuity between the VSS terminal B (wiring harness-side) and TCM terminal Z (wiring harness-side). Is there continuity?	Yes	Go to the next step.
10		No	Repair or replace the wiring harness for a possible open circuit, then go to the next step.
11	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: Start the engine. Warm-up the engine until the engine coolant temperature reaches 60 °C {140 °C} or more. Shift the selector lever to D or M position. Drive the vehicle with Intermediate speed at 1,500 rpm or more for 5 s or more. Is the same DTC present?	Yes	Replace the TCM, then go to the next step. (See TCM REMOVAL/INSTALLATION .)
11		No	Go to the next step.
12	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 .)
12		No	DTC troubleshooting completed.