OBD2 diagnostic tools are essential for troubleshooting car problems. However, sometimes the issue lies with the OBD2 system itself. If your 1999 Ford E350’s OBD2 port isn’t working, a blown fuse might be the culprit. This article will guide you through finding and replacing the fuse responsible for your OBD2 port.
Finding the OBD2 Fuse in Your 1999 Ford E350
The fuse for the OBD2 port in a 1999 Ford E350 is typically located in the power distribution box (PDB) under the hood or the dashboard. Consult your owner’s manual for the precise location and fuse number. The manual often includes a diagram identifying each fuse and its corresponding circuit. The OBD2 fuse is often labeled as “Cigar Lighter” or “Data Link Connector.” It’s usually a 10-15 amp fuse.
Troubleshooting Your 1999 Ford E350 OBD2 Fuse
Before replacing the fuse, verify that it’s actually blown. Remove the suspected fuse and inspect the metal strip inside. A broken or melted strip indicates a blown fuse. If the fuse is blown, replace it with a new one of the same amperage. Never use a higher amperage fuse as this could damage the electrical system.
If the new fuse blows immediately, there’s likely a short circuit in the OBD2 system. This requires professional diagnosis and repair. Common causes include damaged wiring, a faulty OBD2 port, or a problem with a connected diagnostic tool.
Using OBD2 Diagnostic Tools with Your 1999 Ford E350
Once the fuse is replaced and the OBD2 port is working, you can use various diagnostic tools. Affordable Bluetooth OBD2 scanners, compatible with Android devices via apps like ForScan or Torque Pro, allow you to read and clear ABS codes, monitor transmission temperature, boost, and other vital parameters. For more advanced diagnostics, professional-grade tools like AutoEnginuity provide comprehensive system scanning and data logging capabilities.
Remember to always turn off the engine before connecting or disconnecting any OBD2 diagnostic tool. Attempting to pull codes with the engine running can sometimes stall the engine, potentially due to unsupported PIDs during VIN retrieval. Replacing a blown OBD2 fuse is a straightforward task that can restore functionality to your diagnostic port, enabling you to effectively troubleshoot and maintain your 1999 Ford E350.
