ADAPTIVE FRONT LIGHTING SYSTEM DIAGNOSTIC TROUBLE CODE (DTC) IDENTIFICATION

DTC	Description
DTC B1101	17: Batt Voltage High
DTC B1102	16: Batt Voltage Low
DTC B1220	87: CAN Speed Sig fault
DTC B1301	87: CAN Steering angle Sig fault
DTC B1302	87: CAN Gearbox Sig fault
DTC B1304	87: CAN Eng speed Sig fault
DTC B1305	87: CAN Yaw rate Sig fault
DTC B1308	87: CAN H Lamp Sig Fault
DTC B1603	88: CAN 'Bus off fault
DTC B1621	01: ECU Hard Fault
DTC B1622	48: ECU Soft fault
DTC B1636	88: LIN fault Physical fault
DTC B1637	54: Sys Cal not performed
DTC B1639	81: LIN fault Communication error DBL Left
DTC B1661	46: Parameter missing
DTC B1953	03: Veh Level Sensor Fault
DTC B2200	81: LIN fault Communication error DBL Right
DTC B2201	81: LIN fault Communication error HLL Left
DTC B2202	81: LIN fault Communication error HLL Right
DTC B2325	09: Swivel Mod fault Left
DTC B2326	09: Swivel Mod fault Right
DTC B2400	09: Levelling Mod fault left
DTC B2401	09: Levelling Mod fault right

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

• You smell fuel, burning insulation, or see smoke.

• Brakes feel soft, pull hard to one side, or make grinding noises.

• The engine overheats, stalls repeatedly, or misfires under load.

• You are missing required tools, torque specs, or safe lifting equipment.

• You are not confident in the next step or safety outcome.

Safety Warning

Adaptive Front Lighting System DTCS