Locate the main electrical distribution unit inside the cab near the driver side dash area and verify each slot using the printed chart before removing any insert. Always match amperage ratings such as 10A, 15A, or 40A to avoid damage to wiring and onboard systems.
The engine compartment unit is positioned close to the battery and contains high load protection elements along with relay modules controlling systems like starter motor, cooling fans, and lighting circuits. Check the cover label for slot numbering and circuit identification.
Each position corresponds to a specific electrical path, including ABS, HVAC controls, instrumentation, and trailer connections. Remove inserts with a puller tool and inspect the metal strip for breaks. Replace only with identical ratings and keep spare inserts available for roadside repairs.
2013 Mack GU713 Fuse Panel Diagram with Locations and Circuit Details
Check the cab electrical distribution unit near the driver side dash and align each numbered slot with the printed layout on the cover to identify circuits for instrumentation, HVAC, and lighting systems.
The engine compartment unit near the battery contains high capacity protection elements and relay modules responsible for starter operation, cooling fans, and power delivery to major components. Each slot includes a marked amperage value for quick identification.
Typical ratings range from 10A for control circuits to 40A or higher for heavy load systems such as blower motors and auxiliary equipment. Use these values to match the correct slot when diagnosing electrical issues.
Relay modules are larger rectangular components positioned рядом with blade inserts and control switching for systems like ignition, horn, and trailer connections. If a circuit fails but the insert remains intact, inspect the corresponding relay.
Remove any suspect insert using a puller tool and inspect the internal metal strip. Replace only with the same rating and ensure proper seating to restore stable electrical flow.
Exact location of cab and engine fuse panels in 2013 Mack GU713
Open the driver door and inspect the left side of the dashboard where the main cab electrical distribution unit is mounted behind a removable trim cover. Pull the cover outward to access the internal slots and labeled layout.
Check the lower dash section near the steering column, as some configurations include an additional access point for secondary circuits tied to instrumentation and cabin controls.
Engine compartment location
Lift the hood and locate the primary power distribution unit near the battery on the frame rail. This enclosure is secured with locking clips and protects high current circuits and relay modules.
Key access points include:
- Driver side dash area for cabin circuits
- Lower dash trim for auxiliary connections
- Engine bay near battery for high load systems
- Sealed enclosures with clip-on covers
Access and visibility tips
Use a flashlight when working under the dashboard, as the mounting position is recessed and partially hidden by structural panels.
Ensure the ignition is switched off before opening any enclosure to avoid electrical faults or accidental short circuits.
Keep track of insert positions during removal to maintain correct circuit routing after reinstallation.
Wear gloves when working in the engine compartment to avoid contact with hot surfaces or sharp edges near mounting brackets.