SRS Lamp Illuminated / DTC B1153, B1315 And/Or 28 (91.60/110)

Publication date: 2006-04-27
Reference number: 91.60/110

SRS LAMP ILLUMINATED / DTC B1153, B1315 AND/OR 28

TECHNICAL SERVICE BULLETIN

Reference Number(s): T-B-91.60/110, Date of Issue: April 27, 2006

MERCEDES-BENZ:	All Model 163 and 463 Vehicles
GROUP:	91 - Seats, Bunks, Restraints Systems

SUBJECT

All Model 163 and 463 Vehicles

Equipped with Baby Smart™ Airbag Deactivation System

SRS Lamp Illuminated / DTC B1153, B1315 and/or 28

SERVICE INFORMATION

If you receive customer reports in the above model vehicles with the SRS warning lamp illuminated and any of the above DTCs stored, please make note of the fault tracing information listed below. To properly diagnose this issue, please follow the SRS fault tree in Star Diagnosis (SDS). This fault tree can be found in a quick test by selecting the stored DTC. If no faults are found, the cause could be a memory card with a transponder chip has been placed on the passenger seat. Company ID cards, notebook computers, PDAs, and other electronic equipment may contain such memory cards that cause interference with the Baby Smart™ transponder. This interference can be interpreted as a fault by the SRS control unit. This condition may be difficult to duplicate in the workshop. Please alert the customer not to place items containing memory cards on the passenger seat. Replacement of components will not remedy the situation.

NOTE: The interference from electronic components is an outside influence and not a manufacturing defect and therefore cannot be claimed under warranty.

FAULT TRACING INFORMATION

Control unit	Fault code	Fault text
163 AB-Airbag (AB2TR_H)	B1153 (006)	Component B48 (Front passenger seat occupied and child recognition) has only detected one transponder. ([TRW])
163 AB-Airbag (AB2TR_H)	B1153 (007)	There is an external fault in the child recognition.
163 AB-Airbag (ABZK)	B1315 (010)	There is an external fault in the child recognition.
163 AB-Airbag (ABZK)	B1315 (011)	Component B48 (Front passenger seat occupied and child recognition) has only detected one transponder.
463 AB-Airbag (ZAE_H)	28 (064)	Fault in communication between component B48 (Front passenger seat occupied and child recognition) and child seat.