| Servicing ignition system |
| General information about the ignition system |
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| The engine control unit -J623- is equipped with self-diagnosis. |
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| For trouble-free operation of the electrical components a voltage of at least 11.5 V is necessary |
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| During some checks, it is possible that the engine control unit -J623- will detect and store a fault. Therefore after completing all checks and repairs the fault memory must be read and if necessary cleared. |
| Assembly overview - ignition system → Chapter. |
| Removing and installing ignition coils with output stage → Chapter. |
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