FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
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Faulty Signal. Permanent Fault






Faulty signal. Permanent fault

Checking programming
Note! The diagnostic trouble code (DTC) is stored if the central electronic module registers that the software in the engine control module (ECM) is faulty or modified. It is therefore important that no steps are taken to remedy modified software in the engine control module (ECM) without first consulting the customer. Neither may software be remedied if the software has been changed by the customer, but this is not the reason for the repair work.


Continue - Replacing software

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Replacing software
New software must be downloaded to remedy faulty or changed software in the engine control module (ECM).
Download new software for the engine control module (ECM) according to Engine control module (ECM), replacing Service and Repair.


Continue - Fault Found

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