The above vehicles can experience the engine dying shortly after it has started. This could be caused by a malfunction of the immobiliser.
Voltage pulses when starting the ignition can occasionally cause faults in the instrument cluster.
This could then affect the data exchange between the instrument cluster and the immobiliser. If the fault memory has codes like:
17978 (P1570) = engine control unit, immobiliser blocked
or / and
18058 (P1650) = data bus, instrument cluster - no signal
stored in it, this could indicate a faulty instrument cluster. In this case, the fault could be remedied by replacing the instrument cluster with a modified one.
Please note that a suitable diagnostics device must be used to reprogram the immobiliser when the instrument cluster is replaced.
Important safety notice
The following technical information and tips for practical use have been set up by HELLA in order to offer professional support to automotive workshops in their daily work. The information available here on this website is only to be used by appropriately trained specialist staff.
The reprinting, distribution, reproduction, exploitation in any form and 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, figures and descriptions are for explanation and presentation of the document text and cannot be used as a basis for installation or design. All rights reserved.
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