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Home >> Porsche >> 2004 >> Boxster Base, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Exterior Lights, Lamps, Switches - Diagnosis >> System HBA 01 >> Checking the actual values >> Test point 4

Test point 4

Terminal 58 

If 0 is displayed with the parking light on:

  1. Check fuse A5
  2. Pull plug off the control module
    • Switch parking light on
    • Measure voltage between terminal 10 and ground

      Voltmeter display greater than 10 V

If the signal (terminal 58) is present at the control module, replace the control module. Check the wire if the signal (terminal 58) is not present at the control module.

NOTE: The headlights are not raised when high beam is activated if there is an open circuit at terminal 58 or if the control module is faulty.