U0182 code meaning
Lost Communication With Lighting Control Module Front
What U0182 means
U0182 is logged when the front lighting control module stops talking on the bus. This module drives front lamp functions such as swivelling or adaptive beam patterns. GM lists it as Lost Communication With Lighting Control Module - Front in the Saab 9-5 (2010-2011) U-code list. Chrysler uses it for the adaptive front lighting module: a 2014 Jeep Grand Cherokee field report filed with NHTSA shows U0182-00 Lost Communication With Adaptive Front Lighting Control Module next to other network codes. GM's logic: the code sets when the module's supervised periodic message stops arriving at 9-16 V. U0181 is the headlamp levelling module, U0183 the rear lighting module. No MIL; cornering or adaptive light may fall back to a basic beam.
U0182 at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyMedium
- Typical labor0.5 to 3 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U0182
- Adaptive or cornering light inoperative
- Lighting warning lamp or message in the cluster
- Front lamps fall back to a fixed default beam
Common causes of U0182
- Most likelyFront lighting module without power or ground
- PossibleCorroded connector in the engine bay or headlamp area
- PossibleBus line to the module chafed or open
- Less likelyFront lighting module faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Front lighting control moduleCAN bus wiring
What each part of U0182 means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 82 | The exact fault in that area. |
What to do next
- Note U0182 and any other codes stored with it: several codes together often point to one cause.
- Check for loose connectors and damaged wiring around the parts the code names.
- Check open recalls for your car: some faults are fixed for free by the dealer. Enter your VIN.
- Clear the code only after the repair. If it comes back, the fault is still there.
Buying a used car? Scan it for stored codes before you pay. A recently cleared memory can hide a problem.
Questions about U0182
What does U0182 mean?
U0182 means "Lost Communication With Lighting Control Module Front". U0182 is logged when the front lighting control module stops talking on the bus. It is a generic code, so it means the same on every make.
Is it safe to drive with U0182?
U0182 does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U0182 fail an emissions test?
U0182 is not an emissions code, so on its own it usually does not fail an emissions test. Other stored codes or a lit check engine light still can.
How hard is U0182 to fix?
Difficulty: medium. A typical repair takes 0.5 to 3 hours of work. This is a job for a workshop.
Will U0182 clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.