PCM Harness Resistance

WARNING: This page is about a different car, the 2003 Oldsmobile Aurora. 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 Fig 1 -Fig 4 . See WIRING DIAGRAMS . If harness is open or shorted, repair as necessary.

Fig 1: Identifying PCM Connector C1 Terminals (1 Of 2)

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Fig 2: Identifying PCM Connector C1 Terminals (2 Of 2)

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Fig 3: Identifying PCM Connector C2 Terminals (1 Of 2)

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Fig 4: Identifying PCM Connector C2 Terminals (2 Of 2)

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