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.
Principles of Operation
The SJB is a combination of a multifunction control module and an interior fuse panel. The SJB functions control multiple vehicle systems which include:
- Battery saver
- Convertible top (if equipped)
- Convertible top drop window function (if equipped)
- Exterior lighting
- Heated rear window
- Interior lighting
- Perimeter anti-theft (if equipped)
- Power locks
- Remote keyless entry (RKE)
- Tire pressure monitoring system (TPMS)
- Interfacing with the instrument cluster (IC) TPMS warning lamp and other warning chimes
The SJB is connected to the medium speed controller area network (MS-CAN) communication network. The SJB controls both interior and exterior lighting, body functions, active anti-theft functions (perimeter alarm), RKE functions, and the TPMS. The SJB receives wireless signals from both the RKE transmitters and the TPMS sensors via a TPMS/RKE antenna that is fixed to the exterior of the SJB plastic casing.
Refer to MODULE CONFIGURATION for programmable parameters in the SJB.
NO RELATED
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.