Precautions for DTC Troubleshooting

Before performed trouble shooting, be sure to read the PRECAUTIONS OF ECM CIRCUIT INSPECTION .
When measuring circuit voltage, resistance and/or pulse signal at ECM connector, connect the special tool to ECM and/or the ECM connectors referring to INSPECTION OF ECM AND ITS CIRCUITS .
Upon completion of inspection and repair work, perform "DTC Confirmation Procedure" and confirm that the trouble has been corrected.