To find out what the wire is for, you need to trace it. Caution: Before doing anything, disconnect the battery's negative terminal to prevent accidental shorts.
Here's how to approach this:
1. Trace the wires: Carefully follow the wires back to where they originate. Look for connectors, splices, or components they might be connected to. This might lead you to a broken component, a previously installed accessory (alarm system, aftermarket lights, etc.), or a wiring harness.
2. Inspect for labels or markings: As you trace the wires, look for any labels, tape markings, or other identifying information.
3. Check your owner's manual: While unlikely to show this specific loose wire, your owner's manual might have diagrams of the vehicle's wiring harnesses or fuse box layouts.
4. Consult a wiring diagram: A wiring diagram specific to your 2012 Chevy Express cargo van model (you'll need to find one online or from a repair manual) will show the routing and function of all the vehicle's wiring. This is the most definitive way to identify the wire's purpose.
5. If you find a connector: Carefully examine the connector to see if it has a corresponding connector somewhere else in the vehicle's wiring. This might help you determine the circuit and potentially reattach the wires.
Important Considerations:
* Safety first: Work on your vehicle's electrical system only if you are comfortable doing so. If you're unsure, consult a qualified mechanic. Improper wiring can cause damage to your vehicle's electrical system or even create a fire hazard.
* Don't just connect it randomly: If you find the source but don't know what the wire is for, *don't* just connect it to something else. You could damage the vehicle or create a short circuit.
In short, there's no fuse number to look up for a random loose wire. You need to trace it back to its source to determine its purpose and whether it needs to be repaired or reconnected.
