NORMAL Mode DTC Retrieval

NOTE: If there is no DTC in the normal mode, check the 1st trip DTC using Continuous Test Results function (Mode 7 for SAE J1979) or the OBD II scan tool or hand-held tester.

NOTE: Hand-held tester only: When the diagnosis system is switched from the normal mode to the check mode, it erases all DTCs and freeze frame data recorded in the normal mode. So before switching modes, always check the DTC and freeze frame data and note them down.

NOTE: When simulating symptoms with an OBD II scan tool (excluding hand-held tester) to check the DTC, use the normal mode. For code on the DTC chart subject to 2 trip detection logic, perform either of the following actions:

Turn the ignition switch OFF after the symptom is simulated the 1st time. Then repeat the simulation process again. When the problem has been simulated twice, the MIL lights up and the DTCs are recorded in the ECM.
Check the 1st trip DTC using Mode 7 (Continuous Test Results) for SAE J1979.

Prepare the OBD II scan tool (complying with SAE J1978) or hand-held tester.
Connect the OBD II scan tool or hand-held tester to the DLC3 at the lower center of the instrument panel. See Figure. Turn the ignition switch ON and push the OBD II scan tool or hand-held tester switch ON.
Use the OBD II scan tool or hand-held tester to check the DTC and freeze frame data and note them down. For operating instructions, see the OBD II scan tool's instruction book. If there is no DTC in normal mode, check the 1st trip DTC using Continuous Test Results function (Mode 7 for SAE J1979) on OBD II scan tool or hand-held tester.
Confirm the details of the DTC and perform appropriate test. See DIAGNOSTIC TROUBLE CODE DEFINITIONS table.
After repairs for DTC have been completed, DTC must be cleared from engine control module (ECM). See CLEARING DIAGNOSTIC TROUBLE CODES . Road test vehicle to ensure all symptoms and/or complaints have been repaired.