Network, generic

U020D Lost Communication With Wireless Accessory Charging Module B

Check engine lightUsually off
EmissionsNot relevant
Drive cycleNot required
Limp modeNo

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.

Likely causes

Fuse or supply of charging pad B
Connector or harness to the second pad
Charging module B faulty

Symptoms

  • Second wireless pad does not charge, first still works
  • Charging indicator for that pad missing

Repair estimate

DifficultyEasyDIY possible
Parts and labour€0–400
Time0.2–1.5 h

Typical range across vehicles; the real cost depends on what the testing finds.

Parts involved

wireless charging module bcan bus

Related codes

U020CU050E

References: static.nhtsa.gov, en.wikipedia.org.