Central Locking System - Failure
Group 51Body Equipment
Bulletin Number
51 09 93 (3856)
Woodcliff Lake, NJ
September 1993
Product Engineering
SUBJECT:
Central Locking System Failure
MODELS:
3 Series (E30)
Situation:
Under certain circumstances, complaints may be encountered in which the entire central locking system is inoperative, with all actuators electrically inoperative, and the central locking system control module is inoperative due to an open internal fusible link.
Vehicles Affected:
E30 vehicles produced between November 1991 and December 1992 (inclusive), or those in which a faulty central locking system control module was retrofitted.
Cause:
Faulty transistors in the central locking system control module which may sporadically cause the actuators to be powered continuously.
Correction:
If this complaint is encountered replace any defective actuators, and replace the central locking system control module with one produced week 49/92 or later.
Under no circumstances are repairs to be attempted on the central locking system control module (such as attempting to repair the internal fusible link).
Parts Information:
Only the central locking system control modules (P/N 61 31 1 380 302) produced after week 49/92 are stocked. Refer to illustration.
Information:
Parts and labor are reimbursable under the terms of the applicable BMW New Car Limited Warranty.
Control Module
Defect Code: 51 26 00 85 00
Labor Operation: Use labor operation(s) and labor allowance(s)
Labor Allowance: appropriate to the model of vehicle being repaired and to the components replaced.