16
Control Units
The AP200M device provides accesses to all available systems, which are integrated
into categories such as Powertrain, Body, and Chassis. Manually locate a required
control system for testing through a series of selection choices.
The Function Menu options vary slightly for different vehicles. The function menu may
include:
ECU Information
– provides the retrieved ECU information in detail. An information
screen opens upon selection.
Read Codes
–
displays detailed information of DTC records retrieved from the test
vehicle's ECU.
Erase Codes
– erases DTC records and other data from the test vehicle's ECU.
Live Data
– retrieves and displays live data and parameters from the test vehicle's
ECU.
ECU Information
This function retrieves and displays the specific information for the tested control unit,
including unit type, version numbers and other specifications.
Read Codes
This function retrieves and displays the DTCs from the vehicle's control system. The
Read Codes screen varies for each vehicle being tested. On some vehicles, freeze frame
data can also be retrieved for viewing.
Erase Codes
After reading the retrieved codes and making appropriate vehicle repairs, use this
function to erase vehicle codes.
Live Data
When this function is selected, the screen displays the data list for the selected module.
The items available for any control module vary from one vehicle to another. The
parameters display in the order that they are transmitted by the ECM, so expect variation
between vehicles.
