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.
Module Replacement Guide (RF-Hub, Pcm, BCM, ESL)
The Immobilizer Component Replacement guide has been modified to list all of the Immobilizer related procedures, found in wiTECH, listed by priority. starting with the most important procedure first, along with an "X" to indicate when it is necessary to run this procedure.
PASSIVE ENTRY VEHICLES
| PRIORITY | PROCEDURE NAME | BCM | ECM | ESL | FOBIKs | RFH |
|---|---|---|---|---|---|---|
| 1 (NAFTA) | Restore BCM Proxi | X | ||||
| 1 (ROW) | Restore Vehicle Configuration | X | ||||
| 2 | RFH Replace | X | ||||
| 3 | Disable KEYs/ FOBIKs | X | ||||
| 4 | Program Ignition FOBIKs | X | ||||
| 5 | BCM Replace | X | ||||
| 6 (NAFTA) | PCM/ECM/ESL Replaced | X | X | |||
| 6 (ROW) | Transfer secret key to ESL / | X | X | |||
| 7 | PROXI Alignment | X | X | X | X | |
| 8 | ECU Specific Procedures | X | X | X | X |
MECHANICAL KEY VEHICLES
| PRIORITY | PROCEDURE NAME | BCM | ECM | ESL | KEYS |
|---|---|---|---|---|---|
| 1 (NAFTA) | Restore BCM Proxi Configuration | X | |||
| 1 (ROW) | Restore Vehicle Configuration | X | |||
| 2 | BCM Replace | X | |||
| 3 | Program Keys | X | |||
| 4 (NAFTA) | PCM/ECM/ESL Replaced | X | X | ||
| 4 (ROW) | Transfer secret key to ESL / ECM | X | X | ||
| 5 | PROXI Alignment | X | X | X | |
| 6 | ECU Specific Procedures | X | X | X |
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.
