How To Read DTC And 1ST Trip DTC: Notes

DTC and 1st trip DTC can be read by the following methods.

(With CONSULT-II or GST ) 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 below. Therefore, using CONSULT-II (if available) is recommended.

A sample of CONSULT-II display for DTC and 1st trip DTC is shown in the following page. 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.

Fig 1: Consult-II Display (1 Of 3)

Courtesy of NISSAN MOTOR CO., U.S.A.

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

Fig 2: Consult-II Display (2 Of 3)

Courtesy of NISSAN MOTOR CO., U.S.A.

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

Fig 3: Consult-II Display (3 Of 3)

Courtesy of NISSAN MOTOR CO., U.S.A.