Open the cargo area side panel and inspect the power distribution unit immediately if tail lights, rear wiper, or outlet stop working. Remove the cover and match each slot with the printed label to locate the correct circuit.
This SUV uses a dedicated panel in the cargo section for systems located toward the back. Lighting, rear wiper motor, audio amplifier, and power outlets are assigned to separate positions, typically with ratings from 10A to 40A depending on load.
Check the metal strip inside each component for breaks or burn marks before replacing it. For example, tail lamp circuits often use 10A–15A, while the rear wiper or accessory outlet may require 20A or higher. Always install the same rating to avoid wiring damage.
The layout printed on the cover identifies each slot by name and number, allowing quick tracing of faults. Use this reference to determine which system lost power and avoid removing multiple components unnecessarily.
2006 Chevy Trailblazer rear fuse box diagram with layout and circuit details
Remove the cargo side trim panel and read the label on the cover to match each slot with its assigned circuit before pulling any component. This prevents disconnecting systems like tail lamps or the audio amplifier.
The cargo-area power distribution unit groups circuits by function and load. Lighting lines such as brake lamps and turn signals usually occupy 10A–15A positions, while higher-demand systems like the rear wiper motor or accessory outlet use 20A–30A slots. Each position is marked with a circuit name and rating, allowing precise identification.
Typical circuit layout
Upper rows often contain lighting and signal circuits, while middle positions handle audio and control modules. Lower sections are reserved for higher load components such as power outlets and motor-driven systems located toward the back of the vehicle.
Checking and replacing components
Inspect the internal metal strip through the transparent casing. A broken or darkened strip indicates failure. Replace only with the same amperage rating printed on top to avoid overheating or repeated issues.
If the same slot fails again after replacement, inspect wiring near the tailgate, cargo lighting harness, or rear-mounted devices for damage or short circuits.
Rear fuse box location in cargo area and access instructions
Open the cargo area and remove the side trim panel on the left wall to reach the power distribution unit. Pull the plastic cover outward using the built-in tab or a trim tool, taking care not to crack the clips.
The panel sits behind the lining near the wheel arch, partially recessed and surrounded by wiring. Use a flashlight for visibility, then remove components with a puller tool, keeping them aligned with their original slots to avoid reconnecting circuits incorrectly.