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Mercedes-Benz A220 2020 Technical Service Bulletin # LI42-47_P-049054 Date: 100305


ABS/TCS - ABS Lamp ON/Codes 5603/5410 Set



YAW Rate Sensor, Road test failed



Topic number LI42.47-P-049054



Version 1



Design group 42.47 Adaptive Brake (ABR)



Date 03-05-2010



Validity Model series 204



Reason for change



Mercedes-Benz A220 2020 Page 390



Reason for block



Complaint:



After replacement of the yaw rate sensor for lateral and longitudinal acceleration (B24/15) the vehicle fails the road test according to the initial



start-up specifications.



Note:



After the road test:



- the yellow ABS warning lamp lights up



- the multifunction display shows the two display messages



-- "Unavailable! - ESP - Diagnosis/Rig Test ! " and



-- "Unavailable! - ABS - Diagnosis/Rig Test ! ",



and the codes 5603 and 5410 are present in the ABR control unit (ABR ECU).



Cause:



The YAW rate sensor (B24/15) delivers incorrect values to the ABR control unit (N30/4) due to being installed under stress, perhaps as a result of a



deformed floor panel at the sensor attachment point.



Attachments



Remedy:



Reinstall sensor B24/15 correctly.



Symptoms



Control unit/Fault code



Mercedes-Benz A220 2020 Page 391



WIS-References



Mercedes-Benz A220 2020 Page 392



Validity



Attachment - Example for a deformed attachment point of B24/15.

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