Product Manual

FCAR Product Manual
28
Fault code analysis steps:
1) Read and record all fault codes;
2) Erase all fault codes;
3) Simulate the conditions generated by the fault and start a road test;
4) Then read and record the fault code at this time;
5) Distinguish between incidental fault codes (independent fault codes or historical
fault codes) and persistent fault codes (current fault codes or associated fault
codes);
6) Distinguish between the major fault code and the minor fault code associated with
the fault symptom;
7) Distinguish the major fault codes in many fault codes or related fault codes (it may
be the cause of other fault codes);
8) According to the above analysis, you can further detect the sensor represented by
fault code, related circuit state of the actuator or control computer, as well as
accurate position of the fault occurred.
3.5.3 READ LIVE DATA
Select this function, the real-time operating parameters of the selected system module
will be displayed on the screen. Different models or control modules have different data
parameters, as shown in Figure 3.5.3-1.