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Home >> Cadillac >> 2007 >> Escalade EXT >> Repair and Diagnosis >> External Pages >> Different car >> Section 47 (Engine Controls - System & Component Testing - 4.3) >> Computerized Engine Controls >> Powertrain Control Module >> Ground Circuits
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Ground Circuits

WARNING: This page is about a different car, the 2003 GMC Sierra and 2003 Chevrolet Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Check PCM connectors for corroded or loose connections. Repair as necessary. Disconnect PCM connectors. Using a DVOM, measure resistance between negative battery terminal and ground terminals at PCM harness connector. If resistance is more than 5 ohms, repair open in affected ground circuit. If resistance is 5 ohms or less, ground circuits are okay.

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