U0182 — Lost communication with front lighting control module

The vehicle's main computer has stopped receiving signals from the front lighting control module. This usually happens because of wiring issues, a faulty module, or network communication problems. The car's lighting system may not work properly until the connection is restored, but the vehicle can often still be driven safely.

Common causes

The cause is almost always one of a few things. Here they are — U0182 rarely comes from anything outside this list:

• Damaged or loose wiring/connectors to lighting control module
• Faulty front lighting control module
• Corroded or dirty electrical connections
• Network communication fault in vehicle's CAN bus
• Blown fuse related to lighting module power

Where to start

In the order a sensible mechanic would work — the cheap checks first, the expensive replacements only after:

1. Inspect and secure wiring and connectors at lighting module
2. Check and replace any blown fuses related to lighting
3. Clean corroded connectors and terminals
4. Test network communication lines for faults
5. Replace lighting control module if all else fails

That is what holds for U0182 in general. From here it depends on your engine — tell me which car it is and what it does, and I will give you the steps for it: real procedures, torque figures and diagrams instead of general advice.