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Home >> Ford >> 1996 >> Explorer 2D Utility, AWD >> Repair and Diagnosis >> Brakes >> Traction Control >> Anti-Lock Brake System >> Trouble Code Tests >> Test P: Left Hydraulic System Malfunction

Test P: Left Hydraulic System Malfunction

  1. Check Brakelines

    - Visually inspect brakelines from valve block to front left caliper for damage and correct installation. Repair or replace as necessary. If brakeline is okay, go to next step.

  2. Check Left Front Outlet Valve

    - Turn ignition switch to OFF position. Install Breakout Box (014-00322) with proper overlay. Using a jumper wire, connect breakout box pins No. 1, 19, 26 and 40. Raise front of vehicle. Using an assistant, press hard on brake pedal while attempting to turn left front wheel. If wheel turns, or brake pedal drops slowly, replace Hydraulic Control Unit (HCU). Bleed hydraulic system. If wheel does not turn and brake pedal does not drop slowly, go to next step.

  3. Check Valve Operation

    - Continue applying pressure on brake pedal. Turn ignition on while attempting to turn left front wheel. DO NOT leave ignition on more than 30 seconds. If wheel now turns, outlet valve is okay and test is complete. If wheel does not turn, replace HCU.
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