17887/P1479/005241

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Revision as of 12:12, 15 September 2011 by Dana (talk | contribs)

17887/ P1479/005241 - Brake Boost Vacuum System: Mechanical Failure

Possible Causes

  • Fuse(s) faulty
    • if the blade wheel (rotor) in the vacuum pump is stuck, most probably a fuse will burn
  • Hoses from/to Brake Boost Vacuum Pump faulty
  • Brake Boost Vacuum Pump faulty
    • the blade wheel (rotor) in the vacuum pump is stuck

Possible Solutions

  • Check / replace fuses
    • check if the blade wheel (rotor) of the vacuum pump is stuck, otherwise the fuse will burn again
  • Check Hoses from/to Brake Boost Vacuum Pump
  • Check Brake Boost Vacuum Pump
    • check if blade wheel (rotor) is stuck
    • Perform Output Test
    • Perform Short Trip in Basic Settings. Group 008 is commonly the self test for this system and may be activated Key On, Engine Off. If needed activate basic settings using [On/Off/Next] and pump the brake pedal.
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