With Generic Scan Tool

DTC Check

NOTE: The MIL is turned on when the ECM and/or TCM detect malfunction(s). Each ECU stores diagnostic information as the diagnostic trouble code (DTC) in its memory and outputs the DTC to the scan tool. Therefore, check both of the ECUs for any DTC with the scan tool because the DTC stored in ECU and TCM is not read and displayed at a time. However, each of the ECUs needs not to be checked with the generic scan tool because the DTC stored in ECM and TCM is read and displayed at a time.

Automatic transmission DTC can be checked using any one of the following 2 methods.

Reading DTC Using SUZUKI Scan Tool
1. Turn ignition switch OFF.





2. Connect SUZUKI scan tool to Data Link Connector (DLC).
Special Tool (A): SUZUKI scan tool
3. Read DTC according to instructions displayed on SUZUKI scan tool and write it down.
4. After completing the check, turn ignition switch OFF and disconnect SUZUKI scan tool from Data Link Connector (DLC).

Reading DTC Using "O/D OFF" Lamp
1. Turn ignition switch OFF.
2. Remove steering column hole cover (1).





3. Using service wire, connect diagnosis switch terminal (3) of monitor connector (2) to ground terminal (4).
4. Turn ignition switch ON.
5. Read flashing pattern of "O/D OFF" lamp which represents DTC as shown in example and write it down.





Example: Shift solenoid "A" control circuit high (DTC 21)

6. After completing the check, turn ignition switch OFF and disconnect service wire from monitor connector.