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.
Monitor GDS Data
- Check DTC status
- Check DTC on the ECM/PCM with GDS.
- Check that there is any DTC related ECM/PCM.
- Perform Troubleshooting the DTC from ECM/PCM with appropriate DTC Troubleshooting Guide first.
- Repair or replace as necessary after erasing DTC with GDS.
- Check DTC on SmartKey Unit (SMK IMMO Unit) side and erase the DTC with GDS.
- Has the DTC gone after erasing with GDS?
YES
- Check poor connection between harness connector and SMK Module or EMS ECU:
Thoroughly check the looseness, poor connection, bent, corrosion, contamination, deformation or damage of connector. Repair or replace as necessary and then, go to "VERIFICATION OF VEHICLE REPAIR " procedure.
- Go to "VERIFICATION OF VEHICLE REPAIR " procedure.
NO
- Go to "Inspection & Repair" procedure.
- Check poor connection between harness connector and SMK Module or EMS ECU:
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Disclosure: Verified tool recommendations may earn an affiliate commission at no cost to you.
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.
Rather have a pro handle this?
A certified mobile mechanic comes to your home or office. They bring the tools, you stay comfortable. No tow truck, no waiting room, no surprises.
No obligation. See pricing before you book.