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Home >> Ford >> 2004 >> Excursion 6.8 S, 4WD >> Repair and Diagnosis >> Brakes >> Traction Control >> Brake System - General Information -- Excursion & F250-F550 Super Duty >> Diagnosis And Testing >> Brake System >> Pinpoint Tests >> Pinpoint Test D: Adjustable Pedal Moves Forward Only

Pinpoint Test D: Adjustable Pedal Moves Forward Only

  1. D1 ISOLATE SWITCH 
    • Disconnect: Adjustable Pedal Switch C2089.
    • Measure the resistance across switch terminals 6 and 1.
    • Is the resistance less than 5 ohms? 
    • Yes  : GO to D2.
    • No  :INSTALL a new switch. TEST the system for normal operation.
  2. D2 CHECK GROUND CIRCUIT FOR OPEN 
    • Measure the resistance between C2089-6, circuit 57 (BK) and ground.
    • Is the resistance less than 5 ohms?