Electrical equipment

Airbag control unit

~1min read

Essential equipment

diagnostic tool

Tightening torques

airbag control unit mounting screws 0.8 daN.m
IMPORTANT

Before removing any component of the safety system, check the airbag control unit with the diagnostic tool. When this function is active, all firing circuits are inhibited and the airbag warning light on the instrument panel comes on steady (ignition on).

REMOVAL

  • Disconnect the battery.
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  • Unclip the badge reader access cover.
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  • Unclip the diagnostic socket access cover.
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  • Remove:
  • the gear lever boot,
  • the gear knob.
  • Open the storage tray.
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  • Unclip the handbrake surround trim (1) and (2).
  • Disconnect the heated seat connectors.
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  • Unclip the lower cover (3).
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  • Disconnect the connector.
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  • Move the front seats forward.
  • Remove the screws (5).
  • Release:
  • slightly the console (4),
  • the console from the gear lever.
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  • Cut the carpet at (6) to remove the sound insulation.
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  • Remove the control unit protective housing.
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  • Disconnect the connector by operating the locking tab.
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  • Remove the fixing screws.

INSTALLATION

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  • Position the control unit before connecting.
  • Tighten the airbag control unit mounting screws to torque (0.8 daN.m).
  • Reconnect the connector.

CAUTION Replace the protective housing (7) after each removal.

  • Refit in the reverse order of removal.
WARNING

Connect the battery; carry out the necessary relearn procedures (Chapter Battery).

  • Carry out the necessary configurations.
  • If everything is correct, unlock the airbag control unit; otherwise, refer to the diagnostic manual.
IMPORTANT

Check the airbag ECU using the diagnostic tool.

Test yourself

A quick Renault Megane quiz: every answer comes with an explanation and a link to the manual page.