If the error code listed above is discovered together with an illuminated ESP indicator lamp, this may be due to a defective brake fluid pressure sensor. A fault with signal plausibility in pressure evaluation could, in such a case, lead to the entering of an error in the control unit.
As it is not possible to take measurements on the sensor itself, first of all check the power supply and the peripheral equipment of the ESP system. If all the test results
correspond to the set values, the pressure sensor is the probable cause and should be replaced.
The brake fluid pressure sensor is mounted inside the hydraulic unit and cannot be replaced as a single item.
Therefore, in the event of any damage occurring, the complete ABS/ESP hydraulic unit has to be replaced.
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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