Safety Warning
DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.
2018 Chrysler 300 CFACTORY OEM SERVICE PROCEDURE
Module, Adaptive Front Lighting System
DIAGNOSTIC CODE INDEX
| DTC | Description |
|---|---|
| B167D-00 | FRONT HEADLAMP LEVELING SENSOR CIRCUIT PERFORMANCE |
| B1681-00 | REAR HEADLAMP LEVELING SENSOR CIRCUIT PERFORMANCE |
| B1684-00 | LEFT HEADLAMP LEVELING MOTOR CONTROL |
| B1685-00 | LEFT HEADLAMP LEVELING MOTOR CONTROL CIRCUIT PERFORMANCE |
| B1689-00 | RIGHT HEADLAMP LEVELING MOTOR CONTROL |
| B168A-00 | RIGHT HEADLAMP LEVELING MOTOR CONTROL CIRCUIT PERFORMANCE |
| B2125-00 | SENSOR SUPPLY VOLTAGE PERFORMANCE |
| B2199-16 | BATTERY VOLTAGE - CIRCUIT VOLTAGE BELOW THRESHOLD |
| B2199-17 | BATTERY VOLTAGE - CIRCUIT VOLTAGE ABOVE THRESHOLD |
| B21DD-84 | SYSTEM VOLTAGE - SIGNAL BELOW ALLOWABLE RANGE |
| B21DD-85 | SYSTEM VOLTAGE - SIGNAL ABOVE ALLOWABLE RANGE |
| B2290-00 | ADAPTIVE FRONT LIGHTING SYSTEM INTERNAL |
| B22A2-00 | ADAPTIVE FRONT LIGHTING SYSTEM NOT PROGRAMMED |
| B22A4-00 | ADAPTIVE FRONT LIGHTING SYSTEM NOT CALIBRATED |
| B2840-01 | LEFT HEADLAMP SWIVELING CONTROL - GENERAL ELECTRICAL FAILURE |
| B2840-87 | LEFT HEADLAMP SWIVELING CONTROL-MISSING MESSAGE |
| B2841-01 | LEFT HEADLAMP SWIVELING CONTROL - GENERAL ELECTRICAL FAILURE |
| B2841-87 | RIGHT HEADLAMP SWIVELING CONTROL-MISSING MESSAGE |
| C2205-00 | STEERING ANGLE SENSOR INTERNAL |
| U0002-00 | CAN C BUS OFF PERFORMANCE |
| U0100-00 | LOST COMMUNICATION WITH ECM/PCM |
| U0121-00 | LOST COMMUNICATION WITH ANTI-LOCK BRAKE SYSTEM (ABS) CONTROL MODULE |
| U0140-00 | LOST COMMUNICATION WITH BODY CONTROL MODULE |
| U0155-00 | LOST COMMUNICATION WITH CLUSTER-CCN |
| U110A-00 | LOST COMMUNICATION WITH SCM - CAN - C |
Factory Service Tools
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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.
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