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34
Next Generation Diagnostic Platform GT60 User's Manual V1.01
Figure 5-10 Sample Function Menu Screen
2. A screen with detailed information of the selected control module displays.
Figure 5-11 Sample ECU Information Screen
3. Press Save to store ECU information. Press to print the information if
need be. Press to exit.
5.2.2 Read Codes
Read Codes menu lets you read trouble codes found in the control unit.
There are 4 types of code status:
●
Present/Permanent/Current
●
Pending
●
History
● Self-diagnostic
Present/Permanent/Current codes stored in a control module are used to
help identify the cause of a trouble or troubles with a vehicle. These codes
have occurred a specific number of times and indicate a problem that
requires repair.
Pending codes are also referred to as maturing codes that indicate
intermittent faults. If the fault does not occur within a certain number of drive
cycles (depending on vehicle), the code clears from memory. If a fault occurs
a specific number of times, the code matures into a DTC and the MIL
illuminates or blinks.
History codes are also referred to as past codes that indicate intermittent
DTCs that are not currently active. Code history is number of engine starts
since DTC(s) were first detected (to see if they are current or intermittent).
Self-diagnostic lets you manually activate system tests that check for DTCs.
Usually it includes a KOEO (Key-on, engine-off) test and a KOER (key-on,
engine-running) test.
To read codes from a vehicle:
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