| To prevent injuries to persons and/or damage to the injection and ignition system, the following must be observed: |
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| Do not touch or disconnect ignition wiring when the engine is running or being turned at starter speed. |
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| The ignition must be switched off before connecting or disconnecting ignition system cables, including high voltage cables or tester cables. |
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| To rotate the engine using the starter but without starting, for example: for compression testing, disconnect the cables for the injectors and the ignition cables. |
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| During some checks it is possible that the control unit will recognise and store a fault. Therefore after completing all checks and repairs the fault memory must be interrogated and if necessary erased. If the fault memory is erased, it will be necessary to generate the readiness code. Interrogate fault memory → Chapter. |
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| Only wash the engine with the ignition off. |
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