Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
System Readiness Test
The system readiness test is to check if the on-board diagnosis of each system related to exhaust emission has been completed or not using a scan tool (Suzuki SDT or CAN communication OBD-II generic scan tool). When the conditions established for each system are met, ECM performs an on-board diagnosis of corresponding system and changes the status of system readiness test from "Incomplete" to "Complete". When "Complete" status is displayed, it is maintained until the "DTC clearance" is performed using scan tool.
- The status of system readiness test may be changed as "incomplete" when performing the following services.
- Disconnection of battery negative cable
- Disconnection of ECM connectors
- Removal of ground cable for ECM
- Disconnection of "DOME" fuse
- By utilizing this system readiness test, it is possible to confirm that all DTC confirmation procedure for each system has been completed or incompleted. For all DTCs related to each system, refer to the table below.
- The system readiness test is NOT the result ("Normal" or "Abnormal") of the on-board diagnosis but the result ("Complete" or "Incomplete") of the on-board diagnosis.
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When to See a Mechanic
Stop DIY work and contact a certified mechanic immediately if any of the following apply:
- • You smell fuel, burning insulation, or see smoke.
- • Brakes feel soft, pull hard to one side, or make grinding noises.
- • The engine overheats, stalls repeatedly, or misfires under load.
- • You are missing required tools, torque specs, or safe lifting equipment.
- • You are not confident in the next step or safety outcome.