Verifying Vehicle Repair

Verification of the vehicle repair will be more comprehensive for vehicles with OBD II system diagnostics. Perform the following steps after making a repair to the vehicle's engine control system:
1. Review and record the freeze frame data for the diagnostic trouble code (DTC) which has been diagnosed (The Freeze Frame data will only be stored for an A or B type diagnostic and only if the Malfunction Indicator Lamp (MIL) has been requested).
2. Clear any DTCs.
3. Operate the vehicle within conditions noted in the Freeze Frame data.
4. Monitor the DTC status information for the specific DTC which has been diagnosed until the diagnostic test associated with that DTC runs.

Following these steps is very important in verifying the repair on OBD II systems. Failure to follow these steps could result in unnecessary repairs or incorrect repairs.