LIGHTING SYSTEM DIAGNOSTIC TROUBLE CODE CHART

Lighting System
DTC No.	Detection Item	DTC Output from	Note	Link
B1244	Light Sensor Circuit Malfunction	Main body ECU (multiplex network body ECU)	-	Click here
B124B	Automatic High Beam System	Main body ECU (multiplex network body ECU)	w/o Adaptive High Beam System	Click here
B124C	Automatic High Beam Camera	Main body ECU (multiplex network body ECU)	w/o Adaptive High Beam System	Click here
B2414	Steering Position Sensor Malfunction	Headlight ECU sub-assembly LH	-	Click here
B2415	Vehicle Speed Sensor Malfunction	Headlight ECU sub-assembly LH	-	Click here
B2417	Headlight Beam Level Control Motor LH Malfunction	Headlight ECU sub-assembly LH	-	Click here
B2418	Headlight Beam Level Control Motor RH Malfunction	Headlight ECU sub-assembly LH	-	Click here
B241A	Rear Height Control Sensor	Headlight ECU sub-assembly LH	-	Click here
B241B	Front Height Control Sensor	Headlight ECU sub-assembly LH	w/ Adaptive Variable Suspension System	Click here
B241C	VGRS ECU	Headlight ECU sub-assembly LH	w/ Variable Gear Ratio Steering System	Click here
B241D	DRS System	Headlight ECU sub-assembly LH	w/ Rear Dynamic Steering System	Click here
B2424	Lost Communication with Headlight Leveling ECU LH	Headlight ECU sub-assembly LH	-	Click here
B2425	Lost Communication with Headlight Leveling ECU RH	Headlight ECU sub-assembly LH	-	Click here
B242C	Right Headlight ECU Malfunction	Headlight ECU sub-assembly RH	-	Click here
B242D	Left Headlight ECU Malfunction	Headlight ECU sub-assembly LH	-	Click here
B242E	Open in IG Circuit	Headlight ECU sub-assembly LH Headlight ECU sub-assembly RH	-	Click here
B242F	Open in B Power Line	Headlight ECU sub-assembly LH Headlight ECU sub-assembly RH	-	Click here
B2437	Camera High Temperature Malfunction	Headlight ECU sub-assembly LH	w/ Adaptive High Beam System	Click here
B2438	Camera Detection Malfunction	Headlight ECU sub-assembly LH	w/ Adaptive High Beam System	Click here
B2439	Headlight LH Circuit	Headlight ECU sub-assembly LH	-	Click here
B243A	Headlight RH Circuit	Headlight ECU sub-assembly RH	-	Click here
B243D	Left Low Beam Fan Malfunction	Headlight ECU sub-assembly LH	-	Click here
B243E	Right Low Beam Fan Malfunction	Headlight ECU sub-assembly RH	-	Click here
B2440	Lost Communication with AHS EDU LH Module	Headlight ECU sub-assembly LH	w/ Adaptive High Beam System	Click here
B2441	Lost Communication with AHS EDU RH Module	Headlight ECU sub-assembly LH	w/ Adaptive High Beam System	Click here
B2450	Height Sensor Initialization Incomplete	Headlight ECU sub-assembly LH	w/o Adaptive Variable Suspension System	Click here
B2451	Vehicle Specifications have not been Stored	Headlight ECU sub-assembly LH	-	Click here
B2452	Abnormal Height Sensor Data at Initialization	Headlight ECU sub-assembly LH	w/o Adaptive Variable Suspension System	Click here
B2456	Left Headlight ECU Variation Error	Headlight ECU sub-assembly LH	-	Click here
B2490	Left LED Fan Circuit	Headlight ECU sub-assembly LH	w/ Adaptive High Beam System	Click here
B2491	Right LED Fan Circuit	Headlight ECU sub-assembly LH	w/ Adaptive High Beam System	Click here
B2492	Left Headlight Driver Module Circuit	Headlight ECU sub-assembly LH	w/ Adaptive High Beam System	Click here
B2493	Right Headlight Driver Module Circuit	Headlight ECU sub-assembly LH	w/ Adaptive High Beam System	Click here
B2494	Left Cornering Light/Front Side Illuminate Light Malfunction	Headlight ECU sub-assembly LH	-	Click here
B2495	Right Cornering Light/Front Side Illuminate Light Malfunction	Headlight ECU sub-assembly RH	-	Click here
U0073	Control Module Communication Bus "A" Off	Headlight ECU sub-assembly LH Headlight ECU sub-assembly RH	-	Click here
U0100	Lost Communication With ECM/PCM "A"	Main body ECU (multiplex network body ECU)	-	Click here
U0100	Lost Communication With ECM/PCM "A"	Headlight ECU sub-assembly LH		Click here
U0101	Lost Communication with TCM	Main body ECU (multiplex network body ECU)	-	Click here
U0101	Lost Communication with TCM	Headlight ECU sub-assembly LH	-	Click here
U0111	Lost Communication with Battery Energy Control Module "A"	Main body ECU (multiplex network body ECU)	-	Click here
U0120	Lost Communication With Starter / Generator Control Module	Main body ECU (multiplex network body ECU)	-	Click here
U0126	Lost Communication with Steering Angle Sensor Module	Main body ECU (multiplex network body ECU)	-	Click here
U0126	Lost Communication with Steering Angle Sensor Module	Headlight ECU sub-assembly LH Headlight ECU sub-assembly RH	-	Click here
U0129	Lost Communication with Brake System Control Module	Main body ECU (multiplex network body ECU)	-	Click here
U0129	Lost Communication with Brake System Control Module	Headlight ECU sub-assembly LH	-	Click here
U0130	Lost Communication with Steering Effort Control Module	Headlight ECU sub-assembly LH	w/ Variable Gear Ratio Steering System	Click here
U0132	Lost Communication with Ride Level Control Module	Headlight ECU sub-assembly LH	-	Click here
U0134	Lost Communication with DRS Module	Headlight ECU sub-assembly LH	w/ Rear Dynamic Steering System	Click here
U0142	Lost Communication with Body Control Module "B"	Headlight ECU sub-assembly LH Headlight ECU sub-assembly RH	-	Click here
U0142	Lost Communication With Mainbody ECU	Rear multiplex network door ECU LH Rear multiplex network door ECU RH	-	Click here
U0151	Lost Communication with Restraints Control Module	Main body ECU (multiplex network body ECU)	-	Click here
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	Main body ECU (multiplex network body ECU)	-	Click here
U0155	Lost Communication with Instrument Panel Cluster (IPC) Control Module	Headlight ECU sub-assembly LH Headlight ECU sub-assembly RH	-	Click here
U0163	Lost Communication with Navigation Control Module	Main body ECU (multiplex network body ECU)	-	Click here
U0164	Lost Communication with HVAC Control Module	Main body ECU (multiplex network body ECU)	-	Click here
U0182	Lost Communication with AFS	Main body ECU (multiplex network body ECU)	-	Click here
U0182	Lost Communication With Lighting Control Module Front	Headlight ECU sub-assembly RH	-	Click here
U0199	Lost Communication with "Door Control Module A"	Main body ECU (multiplex network body ECU)	-	Click here
U0200	Lost Communication with "Door Control Module B"	Main body ECU (multiplex network body ECU)	-	Click here
U0201	Lost Communication with "Door Control Module C"	Main body ECU (multiplex network body ECU)	-	Click here
U0202	Lost Communication with "Door Control Module D"	Main body ECU (multiplex network body ECU)	-	Click here
U0208	Lost Communication with "Seat Control Module A"	Main body ECU (multiplex network body ECU)	-	Click here
U0210	Lost Communication with "Seat Control Module C"	Main body ECU (multiplex network body ECU)	-	Click here
U0230	Lost Communication with Rear Gate Module	Main body ECU (multiplex network body ECU)	-	Click here
U023A	Lost Communication With Image Processing Module "A"	Main body ECU (multiplex network body ECU)	-	Click here
U023A	Lost Communication with Front Camera Module	Headlight ECU sub-assembly LH	w/ Adaptive High Beam System	Click here
U0242	Lost Communication With Headlamp Control Module "B"	Headlight ECU sub-assembly LH	-	Click here
U0327	Software Incompatibility with Vehicle Security Control Module	Main body ECU (multiplex network body ECU)	-	Click here
U1000	CAN Communication Failure (Message Registry)	Headlight ECU sub-assembly LH Headlight ECU sub-assembly RH	-	Click here
U1104	Lost Communication with Driving Support ECU	Main body ECU (multiplex network body ECU)	-	Click here
U1106	Lost Communication with Electric Parking Brake Module	Main body ECU (multiplex network body ECU)	-	Click here
U1115	Lost Communication with Tilt & Telescopic Module	Main body ECU (multiplex network body ECU)	-	Click here
U1117	Lost Communication with Accessory Gateway	Main body ECU (multiplex network body ECU)	-	Click here