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Home >> Nissan-Datsun >> 2004 >> Altima S, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 1121 (Engine Control System - Introduction) >> On Board Diagnostic (OBD) System >> Emission-related Diagnostic Information >> DTC And 1ST Trip DTC >> How to Read DTC and 1st Trip DTC

How to Read DTC and 1st Trip DTC

WARNING: This page is about a different car, the 2007 Nissan Maxima. However, it is still accessible from the selected car via links, so may be relevant.

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

With CONSULT-II 

With GST 

CONSULT-II or GST (Generic Scan Tool) Examples: P0340, P0850, P1148 etc.

These DTCs are prescribed by SAE J2012.

(CONSULT-II also displays the malfunctioning component or system.)

No Tools 

The number of blinks of the MIL in the Diagnostic Test Mode II (Self-Diagnostic Results) indicates the DTC. Example: 0340, 0850, 1148, etc.

These DTCs are controlled by NISSAN.

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

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

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

Fig 1: CONSULT-II Display - Self Diag Results
G04900016Courtesy of NISSAN MOTOR CO., U.S.A.