SYS.OK|MANUAL.DB● LIVE
HOMESERVICE MANUALSFORD2004ECONOLINE E150, VAN CARGO, 4.6 WREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 489 (ANTI-LOCK BRAKE SYSTEM - ANTI-LOCK CONTROL)DIAGNOSIS AND TESTINGANTI-LOCK CONTROLSYMPTOM CHART
2004 Ford Econoline E150, Van Cargo, 4.6 W

Symptom Chart

2004 Ford Econoline E150, Van Cargo, 4.6 WSECTION Symptom Chart
WARNING: This page is about a different car, the 2005 Ford RV Cutaway, 2005 Ford Econoline, 2005 Ford E450 Super Duty, and 2005 Ford Cutaway. However, it is still accessible from the selected car via links, so may be relevant.
ANTI-LOCK CONTROL SYMPTOM CHART

Condition Possible Sources Action
  • No communication with the anti-lock brake system (ABS) module
  • Circuitry.
  • ABS module.
  • Soft/excessive brake pedal travel
  • Inlet (isolation) valve or hydraulic outlet (dump) valve.
  • Leaky inlet (isolation) valve during ABS applications (soft).
  • Brake line or hose, fitting, master cylinder, wheel cylinder or caliper.
  • Air in brake system.
  • Brake shoe or pad linings.
  • Parking brake.
  • Rear axle seal.
  • ABS false activation, ABS too sensitive, ABS activates on normal stop
  • Front anti-lock brake sensor indicators.
  • INSPECT both front wheel speed sensor rings for damaged teeth. CHECK the wheel speed sensor gap.
  • Chafed wire insulation or pinched wire.
  • INSPECT the wiring harness from the front wheel speed sensor knuckle to the frame and from the rear axle to the frame.
  • Open or shorted wheel speed sensor circuit.
  • Rear wheel speed sensor indicator.
  • INSPECT the rear ABS indicator.
  • Wheel speed sensor
  • Rear brake adjustment.
  • Linings.
  • Wheels lock up
  • Hydraulic outlet (dump) valve.
  • Leaky inlet (isolation) valve during ABS (soft).
  • Front or rear brakes.
  • Parking brake.
  • Rear axle seal.
  • Vehicle pulls during braking
  • Sensor failure.
  • Base brake system.
  • Anti-lock brake system (ABS) warning indicator illuminated
  • Circuitry.
  • ABS module.
  • The red BRAKE warning indicator stays on when the ignition switch is in RUN
  • Circuitry.
  • Brake fluid level.
  • Instrument cluster.
  • Anti-lock brake system (ABS) module.
  • The yellow anti-lock brake system (ABS) warning indicator does not self-check
  • Circuitry.
  • Instrument cluster.
  • ABS module.
  • The red BRAKE warning indicator and yellow anti-lock brake system (ABS) warning indicator are illuminated
  • Dynamic rear proportioning (DRP).
RENDER: 1.0x

NO RELATED

Recommended Tools & Savings

Use the Manual With the Right Hardware

Pair factory procedures with proven DIY tools so the instructions are easier to execute.

Affiliate disclosure: We may earn a commission at no extra cost to you.

Shop Manual-Ready ToolsFree Quote CheckQuote Shield Pro

When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.