LEMON Manuals: Even more car manuals for everyone
Home >> Ford >> 2000 >> Taurus LX, 3.0 2, AX4N >> Repair and Diagnosis >> External Pages >> Different car >> Section 203 (Engine Controls - Diagnostic Methods -- 6.0L Diesel (99P F450/550)) >> On-Board Diagnostic (OBD) Drive Cycle >> Analyzing PCM Data >> Harness Shorts

Harness Shorts

WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2005 Ford RV Cutaway, 2005 Ford Pickup, 2005 Ford F550 Super Duty, 2005 Ford F450 Super Duty, and 2005 Ford Excursion. However, it is still accessible from the selected car via links, so may be relevant.

The purpose is to check the harness for short circuits (to ground or voltage).

  1. Key OFF.
  2. Disconnect the component and the PCM from the vehicle harness.
  3. Using a digital multimeter (DMM), measure the resistance between the signal circuit and signal return circuit, power ground circuit, VREF circuit, or vehicle power.
  4. If the resistance value is less than 10,000 ohms, the 2 circuits may be shorted.
scientia non olet · About LEMON Manuals