Diagnostic freeze frame data, if available, can give a repairer clues to when a diagnostic trouble code was triggered. Freeze frame data is a record of many different control units, such as fuel systems, calculated loads, engine coolant temperature, fuel trim, engine speed, vehicle speed, etc. when a malfunction is detected. When troubleshooting, it can help determine if the vehicle was running or turned off, the engine was warmed up or not, the air-fuel ratio was LEAN or RICH and other data from the time the malfunction occurred.

A TRUE DIAGNOSIS AIDS THE REPAIR PLAN

Issues with the automotive power train can either be a normal part of the repair process or a catastrophic ending, depending on when the problem is found, diagnosed, and repaired. The difference in outcome is the timing of the data collection. The best time to obtain all possible computer readings is when the vehicle is fi rst brought to the shop. The collection of the freeze frame data at the very start can then be used in the accurate preparation of the repair plan.

It’s important to understand that often times vehicle owners haven’t seen or been in contact with their vehicles in several days or even weeks. The vehicle has been subjected to multiple tow trucks, tow yards, and outdoor elements. A collision shop MUST document how the vehicle arrived at the shop- both physically and electronically.

The time of the data collection, when compared to the time of the accident, can also be a clue to determine if covered components were normal, the cause, or the result of the accident. This information then can be used to better refi ne the repair estimate. It can be diffi cult to amend the estimate, order parts and install components after repairs have started, or worse, been completed.

In summation, is it related? Is it not related? As with most challenges in life, there are always two sides of the story.

The driver of the vehicle and the vehicle itself are the only two parties that experienced the accident. One has the ability to be dishonest the other does not. Without diagnostic health scans, the shop and the insurer only have potentially fl awed customer testimony, and physical damage to the vehicle to make determinations regarding whether the damage is related to the accident or not. Where is the car’s voice in this? That vehicle is potentially storing data that could point to poor

maintenance, abuse and even vandalism. Its data could also point to issues that are loss related and go undiscovered by all parties because a vehicle health scan wasn’t performed. The asTech device has the ability to provide this data to all parties by using OEM scan tools over the internet.

A POSSIBLE PROCESS SHIFT?

The master technicians at asTech.com recommend implementing a policy of conducting a pre-scan using an asTech device when the vehicle arrives at the repair facility. Accurate diagnostics enhance a repair facility’s ability to provide an accurate estimate.

The time to set up this process is now. Every year more and more electronic controls are added to our vehicles. Proper procedures established now will guarantee the most effi cient repair possible and also the most possible profi t! For professional assistance in the collection and interpretation of all vehicle data before, during and after repairs contact the professionals at www.astech.com.

Collision Repair: What Is and Is Not Accident Related?

“A collision shop MUST document how the vehicle

arrived at the shop– both physically

and electronically.”