How to Read DTC and 1ST Trip DTC

HOW TO READ DTC AND 1ST TRIP DTC
DTC and 1st trip DTC can be read by the following method.

With CONSULT-II or, GST (Generic Scan Tool) Examples: P0705, P0710, P0720, P0725, etc.

These DTCs are prescribed by SAE J2012. (CONSULT-II also displays the malfunctioning component or system.)

1st trip DTC No. is the same as DTC No.

Output of the diagnostic trouble code indicates that the indicated circuit has a malfunction. However, in case of the Mode II and GST they do not indicate whether the malfunction is still occurring or occurred in the past and returned to normal.

CONSULT-II can identify them as shown. Therefore, using CONSULT-II (if available) is recommended.






A sample of CONSULT-II display for DTC and 1st trip DTC is shown. DTC or 1st trip DTC of a malfunction is displayed in SELF-DIAGNOSIS mode for "ENGINE" with (CONSULT-II Time data indicates how many times the vehicle was driven after the last detection of a DTC.

Example:

If the DTC is being detected currently, the time data will be "0".

Example:

If a 1st trip DTC is stored in the ECM, the time data will be "1t".