A common problem in Hino 268 trucks is a non-functioning radio and cigarette lighter. This often stems from a blown fuse or a faulty relay within the fuse box. Locating the correct fuse or relay requires a Hino 268 Fuse Box Diagram. This guide will help you understand the issue and find the necessary components for troubleshooting.
Understanding the Hino 268 Electrical System
The Hino 268’s electrical system, like most vehicles, relies on fuses and relays to protect sensitive components from power surges. The fuse box, often located in multiple locations on the truck, houses these protective devices. A blown fuse interrupts the electrical circuit, preventing power from reaching the radio and cigarette lighter.
Locating the Hino 268 Fuse Box
The fuse box responsible for the radio and cigarette lighter isn’t always in the main fuse panel. It might be located:
- Above the batteries: Check the area directly above the batteries for a separate fuse box.
- Behind the driver’s step: Inspect the area behind the driver’s side step for a hidden fuse panel.
- On the right side frame rail, behind the transmission: Look along the frame rail on the passenger side, near the rear of the transmission.
- Inside the cab panel: Some Hino 268 models may have this fuse box accessible from inside the cab.
Identifying the ROOM LT Fuse
Once you’ve located the correct fuse box, look for a fuse labeled “ROOM LT” or a similar designation. This fuse often powers the relays that control the radio and cigarette lighter.
Checking the Lighter Socket’s Fusible Link
The cigarette lighter socket itself may contain a built-in fusible link. To check this:
- Remove the panel surrounding the cigarette lighter. This may require using a small screwdriver or pry tool.
- Unplug the lighter socket.
- Use a test light or multimeter to check for power with the key turned on. One wire should have power. If the fusible link is blown, the center contact of the socket will not have power, even if the wire leading to it does.
Hino 268 and Toyota Compatibility
Interestingly, some Hino and Toyota parts are interchangeable. The cigarette lighter socket in a Hino 268 might be identical to one found in a Toyota Tacoma. This can be helpful if you need a replacement part.
Conclusion
Troubleshooting electrical issues in a Hino 268 often starts with the fuse box. By understanding the potential locations of the fuse box and knowing which fuse to check (ROOM LT), you can quickly diagnose and fix problems with the radio and cigarette lighter. Remember to also check the fusible link within the lighter socket itself. If the problem persists after checking these components, further diagnosis by a qualified technician may be necessary.
