Smart fault codes

2,388 codes · 84 vehicle records · 75 ECU records · 14,877 live-data parameters

Codes 2,388

Code	Description	Brands	System
U1143	Valid up to model year 2021	9	Network
U1144	Loss of Communications with PHN	12	Network
U1145	Loss Of NAV Communications	10	Network
U1146	Loss of OnStar communication	14	Network
U1147	Loss of serial communications for class 2 devices	14	Network
U1148	Loss of serial communications for class 2 devices	12	Network
U1149	Loss of serial communications for class 2 devices	10	Network
U1150	Communication failure with battery management system (BMS)	17	Network
U1151	Loss of serial communications for class 2 devices	17	Network
U1156	Loss of serial communications for class 2 devices	11	Network
U1159	Loss of serial communications for class 2 devices	11	Network
U1160	EV-ECU CAN timeout	15	Network
U1167	Loss of serial communications for class 2 devices	18	Network
U1169	Loss of Communications with MMM	11	Network
U1173	Loss of serial communications for class 2 devices	13	Network
U1176	Loss of RFA communications	16	Network
U1179	Loss of serial communications for class 2 devices	8	Network
U1181	Loss of serial communications for class 2 devices	10	Network
U1185	Loss of serial communications for class 2 devices	8	Network
U1186	Loss of serial communications for class 2 devices	10	Network
U1187	Loss of serial communications for class 2 devices	9	Network
U1188	CAN hybrid network	10	Network
U1199	Loss of serial communications for class 2 devices	12	Network
U1200	Loss of serial communications for class 2 devices	23	Network
U1201	Communication error	21	Network
U1203	Loss of serial communications for class 2 devices	23	Network
U1204	Loss of serial communications for class 2 devices	21	Network
U1205	No communication with the steering angle sensor	23	Network
U1213	The information sent by the electronic stability program ECU is faulty.	17	Network
U1217	Invalid or missing data for external lamp outage	16	Network
U1222	Loss of serial communications for class 2 devices	15	Network
U1232	Loss of serial communications for class 2 devices	13	Network
U1233	Reversible alternator	13	Network
U1234	Loss of serial communications for class 2 devices	11	Network
U1235	IP address conflict	13	Network
U1238	Loss of serial communications for class 2 devices	8	Network
U1239	Loss of serial communications for class 2 devices	8	Network
U1240	Loss of serial communications for class 2 devices	11	Network
U1241	Loss of serial communications for class 2 devices	9	Network
U1242	Loss of serial communications for class 2 devices	8	Network
U1243	Loss of serial communications for class 2 devices	9	Network
U1244	Loss of serial communications for class 2 devices	10	Network
U1245	Loss of serial communications for class 2 devices	8	Network
U1246	Loss of serial communications for class 2 devices	8	Network
U1247	Loss of serial communications for class 2 devices	8	Network
U1248	Loss of serial communications for class 2 devices	8	Network
U1253	Loss of serial communications for class 2 devices	10	Network
U1254	Loss of serial communications for class 2 devices	8	Network
U1255	Class 2 Communication Malfunction	10	Network
U1256	Testeri vastus puudub	6	Network

Some brand data is extracted from diagnostic files and may contain manufacturer-specific wording. General SAE J2012 descriptions are used where available.