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5.6. 'DTC Information’ Page
The 'DTC Functions' page gives the user access to some information regarding the attached DTC
scanner. The scanner voltages for temperature and excitation may be read and the position of the
calibration shuttle valve determined as either being in 'RUN' or 'CAL.' mode. Also, the information
contained in the scanner header may be displayed. Note that the value of the parameter read from
the scanner (ie temperature, excitation voltage and particularly valve position) is valid only for the
time that it is read.
Figure 5.8, 'DTC Information' Page
Control
Function
'Range'
Shows the floating point value for the range contained within the scanner.
'x3 derange'
Shows the floating point value for the sensitivity derange constant contained within
the scanner.
'Channels'
Shows the floating point value for number of scanner channels.
'Read'
Displays the data header from the DTC scanner, splits out the information and
displays scanner full scale, the number of channels and the deranging factor. Also
shown are the scanner model, serial number and date of manufacture.
'Temperature (V)'
Click '>>' to read the current temperature voltage from the scanner.
'Excitation (V)'
Click '>>' to read the current excitation voltage from the scanner.
Calibration Valve Position
Click '>>' to read the valve position as 'RUN' or 'CAL'.
Table 5.7, 'DTC Information’ Page controls
