Clearing Diagnostic Trouble Codes

HOW TO ERASE DTC
The diagnostic trouble code can be erased by CONSULT-II, GST or ECM DIAGNOSTIC TEST MODE as described following.
^ If the battery terminal is disconnected, the diagnostic trouble code will be lost within 24 hours.
^ When you erase the DTC, using CONSULT-II or GST is easier and quicker than switching the mode selector on the ECM.
- The following emission-related diagnostic information is cleared from the ECM memory when erasing DTC related to OBD-II. Clearing Diagnostic Trouble Codes
^ Diagnostic trouble codes (DTC)
^ 1st trip diagnostic trouble codes (1st trip DTC)
^ Freeze frame data
^ 1st trip freeze frame data
^ System readiness test (SRT) codes
^ Test values

HOW TO ERASE DTC (WITH CONSULT-II)
^ If a DTC is displayed for both ECM and TCM, it needs to be erased for both ECM and TCM.
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10 seconds and then turn it ON (engine stopped) again.
2. Turn CONSULT-II "ON" and touch "A/T".
3. Touch "SELF-DIAG RESULTS".
4. Touch "ERASE". (The DTC in the TCM will be erased.) Then touch "BACK" twice.
5. Touch "ENGINE".
6. Touch "SELF DIAGNOSIS".





7. Touch "ERASE". (The DTC in the ECM will be erased.)

HOW TO ERASE DTC (WITH GST)
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10 seconds and then turn it ON (engine stopped) again.
2. Perform "OBD-II SELF-DIAGNOSTIC PROCEDURE (No Tools)".(The engine warm-up step can be skipped when performing the diagnosis only to erase the DTC.)
3. Select Mode 4 with Generic Scan Tool (GST).

HOW TO ERASE DTC (NO TOOLS)
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait at least 10 seconds and then turn it ON (engine stopped) again.
2. Perform "TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)". (The engine warm-up step can be skipped when performing the diagnosis only to erase the DTC.)