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Volvo — System Reset Procedure

For these Volvo models: TAD1240-42GE, TWD1240VE.

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Before you start

  • Always finish off an engine installation by doing a system reset.
  • A system reset must also be done after a frequency change.

Procedure

  1. Press the 'Diagnostic button' and keep it depressed when system voltage is switched on.
  2. Hold the button until the system completes the reset process.

Tools required

  • Diagnostic button

Source: manual:Installation EDC III.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.