DTC Information

DTC STATUS
This selection will display any DTC(s) that have not run during the current ignition cycle or have reported a test failure during this ignition cycle up to a maximum of 40 DTC(s). DTC tests which run and pass will cause that DTC number to be removed from this scan tool display.


FAIL THIS IGN. (FAIL THIS IGNITION)
This selection will display all DTC(s) that have failed during the present ignition cycle.

LAST TEST FAIL
This selection will display only DTC(s) that have failed the last time the test ran. The last test may have ran during a previous ignition cycle if an A or B type DTC is displayed. For type C DTC(s), the last failure must have occurred during the current ignition cycle to appear as Last Test Fail.

MIL REQUEST
This selection will display only DTC(s) that are requesting the MIL. Type C DTC(s) cannot be displayed using this option. This selection will report type B DTC(s) only after they have requested the MIL. (failed twice).

NOT RUN SCC (NOT RUN SINCE CODE CLEAR)
This selection will display up to 40 DTC(s) that have not run since DTC(s) were last cleared. Since any displayed DTC(s) have not run, their condition (passing or failing) is unknown.

TEST FAIL SCC (TEST FAILED SINCE CODE CLEAR)
This selection will display all active and history DTC(s) that have reported a failure since the last time DTC(s) were cleared. DTC(s) that last failed over 40 warm-up cycles will not be displayed.

HISTORY CODE
This selection will display only DTC(s) that are stored to the PCMs history memory. It will not display type B DTC(s) that have not requested the MIL. It will display all type A DTC(s) and type B DTC(s) (which have requested the MIL) that have failed within the last 40 warm-up cycles. In addition, it will display all type C DTC(s) that have failed within the last 40 warm-up cycles.

DIAGNOSTIC TROUBLE CODE DIAGNOSIS
This section uses diagnostic charts, wiring diagrams, and descriptive text to direct you in performing specific tests to locate and repair the problem. The diagnostic chart is a step by step procedure to determine the circuit or component that is the source of the problem.

DIAGNOSTIC CODE DISPLAY
DTC(s) can only be displayed with the use of a scan tool.

CLEARING DIAGNOSTIC TROUBLE CODES
When using the scan tool to clear DTC(s) select Clear Info. Before clearing DTC(s) the scan tool has the capability to save any data stored with the DTC(s) and then display that data at a later time, (refer to Capture Info.). Once a problem has been corrected and verified it is a good idea to clear DTC(s) so that any future service work is not needlessly confused.

Many PCM DTC(s) have complex test and failure conditions. Therefore, simply clearing DTC(s) and watching to see if the DTC sets again may not indicate whether a problem has been corrected. To verify a repair after it is complete, you must look up the test conditions and duplicate those conditions. If the DTC runs and passes, chances are good that the problem is fixed.

CAPTURING DTC INFO (CAPTURE INFO)
Selecting this option on the scan tool allows the technician to record the Freeze Frame and Failure Records that may be stored in the PCMs memory. This can be useful if the PCM or battery must be disconnected and later review of the stored information may be desired.