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Home >> Pontiac >> 2003 >> Aztek AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 231 (Engine Controls - System Testing & Engine Component Tests - 3.1L) >> Computerized Engine Controls >> Powertrain Control Module >> PCM Harness Resistance
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PCM Harness Resistance

WARNING: This page is about a different car, the 2003 Pontiac Grand Prix, 2003 Chevrolet Malibu, and 2003 Buick Century. However, it is still accessible from the selected car via links, so may be relevant.

Turn ignition switch to LOCK position. Disconnect PCM and related component harness connectors. Check for open or short circuits between PCM harness connector terminal and component harness connector terminal. For connector terminal identification, see SELF-DIAGNOSTICS - 3.1L CENTURY, GRAND PRIX & MALIBU article. See WIRING DIAGRAMS . If harness is open or shorted, repair as necessary.

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