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.
BCM Programming/RPO Configuration
BCM's EEPROM chip must be programmed with proper RPO configurations. EEPROM stores information about vehicle options and point of sale. When BCM is replaced, new BCM must be programmed to identify the following information:
- Real Time Damping (RTD).
- Memory options.
- Daytime Running Lights (DRL).
- Front foglights.
- Tire Pressure Monitor (TPM).
- HVAC (manual or automatic).
- Country of sale (US, Canada, Europe, Gulf, etc.).
If BCM is not properly programmed, vehicle will exhibit a no-crank condition. If BCM is not properly configured, BCM will set default values for some systems, which may cause faults in other systems.
When BCM is replaced, new BCM must be programmed to accept resistance value of existing vehicle keys so that it will allow PASS-Key(R) operation. The new BCM is programmed to accept the first PASS-Key(R) resistance value detected. If BCM is unable to detect a valid PASS-Key(R) resistance value, BCM will not end programming sequence and DTC 2735 will set.
Use the Manual With the Right Hardware
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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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