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.
Circuit/System Description
When the battery energy control module is flash programmed, the hybrid battery interface module operating software and calibrations are provided to the battery energy control module. The hybrid battery interface module software and calibrations are then loaded to each of the hybrid battery interface modules from the battery energy control module. This operation is automatic and requires no operator action. At this point, if any of the hybrid battery interface control modules are not programmed correctly, the appropriate DTC is set.
This fault is internal to the hybrid battery interface control modules and no external circuits are involved.
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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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