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Home >> Ford >> 2000 >> Contour SE, 2.5 L, Standard >> Repair and Diagnosis >> External Pages >> Different car >> Section 977 (Four-Wheel Drive Systems (ESOF) -- F150 Pickup) >> Diagnosis And Testing >> Four-Wheel Drive Systems - Electronic Shift >> Pinpoint Tests >> Pinpoint Test J: No Communication With the 4x4 Module (PCM) >> Normal Operation

Normal Operation

WARNING: This page is about a different car, the 2005 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.

In order for the 4x4 module (PCM) to communicate with the scan tool, the operating voltage required to supply the 4x4 module (PCM) is in a range between 9 and 16 volts. Voltage is supplied by circuit 1861 (RD) and circuit 1865 (WH/OG).

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