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.
2003 Mercedes Benz CLK430FACTORY OEM SERVICE PROCEDURE
CENTRAL LOCKING SYSTEM DTCs
DIAGNOSTIC TROUBLE CODE LIST
| DTC | Mercedes-Benz DTC | Description |
|---|---|---|
| B1124 | - | Remote trunk release, testing electrical system, RTR |
| B1000 | 004 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1000 | 005 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1000 | 008 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1000 | - | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1010 | - | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1011 | - | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1021 | - | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1024 | - | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1025 | - | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1054 | - | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1055 | - | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1057 | - | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1059 | - | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1148 | - | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1156 | 000 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1156 | 001 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1156 | 002 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1156 | 003 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1156 | 004 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1156 | 005 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1157 | 000 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1157 | 001 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1157 | 002 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1157 | 003 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1157 | 004 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
| B1157 | 005 | Radio frequency locking/remote central locking (RFL/RCL) diagnosis, fault memory |
Factory Service Tools
Use the Manual With the Right Hardware
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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.