U020D code meaning
Lost Communication With Wireless Accessory Charging Module B
What U020D means
U020D is the second wireless charging slot, B, meant for vehicles with two inductive pads, for example a further one for rear passengers. No manufacturer documents this code publicly. The early GM system shows what sits behind such a unit: preliminary information PIC6049 (2015 Cadillac ATS, CTS, Escalade, Chevrolet Tahoe, Suburban, GMC Yukon with option K4C) placed the wireless charging module under technical assistance restriction and asks for phone model, receiver cover and charging habits before any replacement. A pad that pauses because the phone is hot is no network fault. A genuine U020D means pad B stays dead while pad A still charges. U020C covers pad A, U050E invalid data. No MIL.
U020D at a glance
- Check engine lightUsually not
- Emissions testNot an emissions code
- Limp modeNot expected
- Repair difficultyEasy, DIY possible
- Typical labor0.2 to 1.5 hours
- Clears after repairWhen cleared with a scanner
Symptoms of U020D
- Second wireless pad does not charge, first still works
- Charging indicator for that pad missing
Common causes of U020D
- PossibleFuse or supply of charging pad B
- PossibleConnector or harness to the second pad
- Less likelyCharging module B faulty
Check the most likely causes first. Replacing parts by guesswork is the most expensive way to clear a code.
Parts involved
Wireless charging module bCAN bus
What each part of U020D means
| U | Network system: communication between the control modules (CAN bus). |
| 0 | Generic code: it means the same on every make (SAE standard). |
| 0D | The exact fault in that area. |
What to do next
- Note U020D 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 U020D
What does U020D mean?
U020D means "Lost Communication With Wireless Accessory Charging Module B". U020D is the second wireless charging slot, B, meant for vehicles with two inductive pads, for example a further one for rear passengers. It is a generic code, so it means the same on every make.
Is it safe to drive with U020D?
U020D does not normally turn on the check engine light by itself. Watch for the symptoms above and have it checked soon.
Will U020D fail an emissions test?
U020D 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 U020D to fix?
Difficulty: easy. A typical repair takes 0.2 to 1.5 hours of work. A careful DIY repair is possible with basic tools and a scanner.
Will U020D clear itself after the repair?
Clear the code with a scanner after the repair. If the fault is fixed, it does not come back.