What does it mean no powertrain DTC or freeze frame data?
#4 · Apr 13, 2013. “No Powertrain DTC’s or Freeze Frame Data is presently stored in vehicles computer” No powertrain DTC – No diagnostic trouble codes – e.g. no problems. No freeze frame data – data which is stored when a problem is recognized. e.g. no problems – no data.
What is Freeze Frame data on scan tool?
When the engine computer (PCM) detects a fault and turns the Check Engine light on, it also stores a freeze frame related to that fault. A freeze frame is snapshot of data from a number of sensors and components at the time when the fault was detected.
What does no DTC mean?
diagnostic trouble codes
If a vehicle has a problem, the on-board diagnostics system usually detects the issue and generates the appropriate code that you can use to identify the issue. These codes are commonly known as DTC or diagnostic trouble codes.
What is DTCs and freeze data?
In simple words, whenever the computer detects a fault and illuminates the CEL, it also clicks and stores freeze frame data related to the issue. This data is essentially a snapshot from a number of components and sensors. You can view this information to find the cause of the problem.
What means DTC?
Diagnostic Trouble Code
A DTC, short for Diagnostic Trouble Code, is a code used to diagnose malfunctions in a vehicle or heavy equipment. While the malfunction indicator lamp (MIL)—also known as the check engine light—simply alerts drivers that there is an issue, a DTC identifies what and where the issue is.
Why would you view freeze frame data?
This data is essentially a snapshot from a number of components and sensors. You can view this information to find the cause of the problem. It is also a legal requirement in some cases to capture and store emission-related information. This captured data is known as freeze frame data.
How do I read freeze frame data?
Another example of how to interpret freeze frame data
- Fuel System 1 Status = 1.
- Fuel System 2 Status = 1.
- Fuel System 1 Status = 1.
- Fuel System 2 Status = 1.
- Calculated Load = 22. 16 %
- Engine coolant temperature = 87 deg C.
- Short term fuel trim (Bank 1) = 0%
- Long term fuel trim (Bank 1) = +11.65%
What is freeze frame data from OBD2 scan tool?
Your vehicle’s memory stores this data and you can now access it with an OBD2 scan tool. Part of the OBD2 system is that it has to record these data when your check engine light comes on. If that fault light comes on, off and then back on again, then you have not overwritten the data.
What can you do with freeze frame data?
It can even give you the speed of the engine and tires at the moment of the fault, as well as how long the engine was on at the time. Other common freeze frame data include fuel levels and battery voltage.
What can a freeze frame tell you about an engine?
A freeze frame can tell you the full state of the engine at the time of the fault. It can tell you if the engine was hot or cold. It can tell you what the weather was through the Intake Air Temperature (IAT). It can even give you the speed of the engine and tires at the moment of the fault, as well as how long the engine was on at the time.
When does a PCM store a freeze frame?
When the engine computer (PCM) detects a fault and turns the Check Engine light on, it also stores a freeze frame related to that fault. A freeze frame is snapshot of data from a number of sensors and components at the time when the fault was detected.