The front right ground cable connection may be faulty if irregular engine running is identified in the above vehicles and there is no entry in the control unit’s event memory. Hardening of the insulation material can lead to the cable breaking in the area of the tubular cable lug.
The ground point is located on the right wheel housing behind the headlight in the driving direction.
The resulting voltage drop has a negative impact on the function of the components of the injection system and therefore causes the control unit to shift the adaptation limit and compensate for the interruptions. In this case, check, repair or replace the cabling.
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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