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.
HDS Clear Command
The ECM stores various specific data to correct the system even if there is no electrical power such as when the battery negative terminal or No. 18 (7.5 A) fuse from the under-dash fuse/relay box No. 7 (15 A) fuse from the under-hood fuse/relay box)* are disconnected. Stored data based on failure parts should be cleared by using the "CLEAR COMMAND" of the HDS, if parts are replaced.
The HDS has two kinds of clear commands to meet this purpose. They are DTC clear and ECM reset. DTC clear command erases all stored DTC codes, freeze data, and readiness codes. This must be done with the HDS after reproducing the DTC during troubleshooting. ECM reset command erases all stored DTC codes, freeze data, readiness codes, and all specific data to correct the system.
*: 2005-2006 models
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.