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.
Repair Procedures: Installation
- When replacing the ECM, the vehicle equipped with the immobilizer must be performed procedure as below.
[In the case of installing used ECM]
- Perform "ECM Neutral mode" procedure with GDS. (Refer to - "Neutralizing Of ECM
")
(Refer to - "IMMOBILIZER SYSTEM ")
- After finishing "ECM Neutral mode", perform "Keyteaching" procedure with GDS. (Refer to - "Teaching Procedures ")
(Refer to - "IMMOBILIZER SYSTEM ")
[In the case of installing new ECM]
Perform "Key teaching" procedure with GDS. (Refer to - "Teaching Procedures ")
(Refer to - "IMMOBILIZER SYSTEM ")
- Perform "ECM Neutral mode" procedure with GDS. (Refer to - "Neutralizing Of ECM
")
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
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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.
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