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Home >> Porsche >> 1985 >> 928 Automatic >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Testing >> Program Switch Position 8 >> Ground Connection (Terminal 34)

Ground Connection (Terminal 34)

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  1. Press "LED" button. Digital display should read 250 mV. If display is okay, go to PROGRAM SWITCH POSITION 9  . If not, go to step 2).
  2. Check ground terminal for excessive contact resistance and open in wiring. Check wire for open from steering mount ground to disconnected control unit plug terminal No. 34. Repair or replace wiring as necessary.
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