DTC P0442 Mercedes-Benz
Key ID unmatched
Key ID unmatched
Description
The KOS-ECU determines that the abnormality is present, if the key ID does not match the one registered in it when the ignition switch is turned ON.
Cause and Solution
Malfunction of the keyless operation key Accessory key not registered Accessory KOS-ECU not registered Key is registered to another vehicle Malfunction of KOS-ECU
Video Guide
Diagnostic Info
- DTC Code: P0442
- Brand: Mercedes-Benz