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.
Junction Block: Description
An electrical Junction Block (JB) is located in the left end cap of the instrument panel (Fig 1 ). The JB combines the functions previously provided by a separate fuse block module and relay center. It also serves to simplify and centralize numerous electrical components, as well as to distribute electrical current to many of the accessory systems in the vehicle. It eliminates the need for numerous splice connections and serves in place of a bulkhead connector between many of the engine compartment, instrument panel, and body wire harnesses.
The JB is positioned on a mounting bracket up and under the left instrument panel. It is secured by four screws. The JB is concealed behind the left instrument panel end cap. The left instrument panel end cap is a snap-fit fuse access cover that conceals the JB fuses. The left instrument panel end cap must be removed to access components other than the fuses in the JB.
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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.