RAM 2500 Van V8-5.9L VIN Z (1997)
Data Link Connector: Testing and Inspection
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The grounding point for circuit Z12 is the rear of the engine.
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Circuit Z12 also supplies a ground for the PCM high current drivers.
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If the system loses ground for the Z12 circuits at the rear of the engine, the vehicle will not operate. Check the connection at the ganged-ground
circuit eyelet.
