Casio Cassiopeia IT-70 User Manual download pdf (Page 20)

7.0 Freeze Frame

The Freeze Frame Data Screen displays the vehicle’s freeze frame data, if any.

What is Freeze Frame? In OBD II vehicles, when the first emissions related powertrain

DTC occurs, the PCM will snapshot (save) a block of current engine parameters. This list

of parameters is called Freeze Frame Data and consists of a fixed list of parameters.

Vehicles may not support every parameter on the fixed list.

NOTE: When DTCs are cleared, the Freeze Frame data is also cleared.

Freeze Frame DTC - The DTC that caused the freeze frame is displayed here. N/A is

displayed if there is no Freeze Frame data present on the vehicle.

Description and Value Grid - The grid displays a description of the freeze frame parameters and the values of

the parameters at the time the DTC occurred. The scroll bar to the right of the grid can be used to manually

scroll through the freeze frame parameter list. The scroll bar on the bottom of the grid can be used to move the

grid left and right in order to see the complete descriptions and values.

NOTE: N/A is displayed for all the parameters if there is no Freeze Frame data. If there is Freeze Frame Data,

N/A is displayed for a specific parameter if the vehicle does not support it.

8.0 Oxygen Sensor Locations and Test Results Screens

The Oxygen Sensor Locations Screen shows which Oxygen Sensors (O2) are present

and which ones are not available on the current vehicle.

NOTE: Not all vehicles support Oxygen Sensor Tests.

Bank and Sensor Columns – Lists the oxygen sensor’s bank and sensor location

number.

Status Column – Lists whether or not an oxygen sensor is present on the vehicle.

• Present… is displayed if an Oxygen Sensor is present on the vehicle. Tapping on

this status opens the Oxygen Sensors Test Results Screen for that sensor.

• Not Available is displayed for locations without an oxygen sensor.

The Oxygen Sensor Test Results Screen shows the on-board oxygen sensor monitoring

test results. Selecting Present… in the Status column of an O2 sensor listed in the Oxygen

Sensor Locations Screen opens this screen.

Description - The available oxygen sensor test parameters are displayed in this column.

Result – The results of the oxygen sensor tests are displayed in this column. A value of

Not Available is listed for tests not supported on the current vehicle.

Ok button- Tap on the Ok button to close the Oxygen Sensor Test Results screen and

return to the Oxygen Sensor Locations screen.

9.0 Inspection and Maintenance Monitors

The Inspection and Maintenance Monitors Screen displays the status of the vehicle’s

inspection and maintenance (I/M) monitors.

What are I/M Monitors? A monitor is a piece of software in one of the vehicle’s on-board

computers that has the job of monitoring a specific piece of the engine. There are two

types of monitors: continuous and non-continuous. A continuous monitor runs

continuously during vehicle operation. A non-continuous monitor requires enabling criteria

to make it run. Some examples of enabling criteria are vehicle acceleration/deceleration to

a certain speed, engine temperature and driving the vehicle at a certain speed for a period

of time. For OBD II vehicles, there is a fixed list of 11 monitors: 3 continuous and 8 non-

continuous. See Section XI. for more information on monitors.

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Casio Cassiopeia IT-70 User Manual Page 20

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