System Inspection
- Was the PCM just replaced or reflashed?
YES
Using a GDS, perform "VIN WRITING" procedure. Refer to the latest Reference manual for scan tool and go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
Using a scan tool, read VIN information.
If there is no proper VIN information, perform "VIN WRITING" procedure.
If VIN information exists, substitute with a known-good PCM and check for proper operation. If the problem is corrected, replace PCM.
And go to "VERIFICATION OF VEHICLE REPAIR " procedure.