If the problem mentioned above is detected, this may be caused by the BAS trip switch.
A signal evaluation error leads to the entering of an error in the control unit.
As it is not possible to take measurements from the switch itself, start by checking the peripheral equipment of the ABS system. If the fault cannot be traced back to any other cause, the switch must be replaced.
The trip switch is built into the brake booster and cannot be replaced separately.
As such, the entire unit must be replaced if damaged.
Important safety note
Technical information and practical tips have been compiled by HELLA in order to provide professional support to vehicle workshops in their day-to-day work. The information provided on this website is intended for use by suitably qualified personnel only.
Reprinting, distribution, reproduction, exploitation in any form or disclosure of the contents of this document, even in part, is prohibited without our express, written approval and indication of the source. The schematic illustrations, pictures and descriptions serve only for the purposes of explanation and representation of the instructions and cannot be used as a basis for installation or assembly work. All rights reserved.
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