QX56 V8-5.6L (VK56DE) (2004)
Electronically controlled circuits are very sensitive to proper grounding. A loose or corroded ground can drastically affect an electronically controlled
circuit. A poor or corroded ground can easily affect the circuit. Even when the ground connection looks clean, there can be a thin film of rust on the
surface.
When inspecting a ground connection follow these rules:
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Remove the ground bolt or screw.
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Inspect all mating surfaces for tarnish, dirt, rust, etc.
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Clean as required to assure good contact.
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Reinstall bolt or screw securely.
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Inspect for "add-on" accessories which may be interfering with the ground circuit.
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If several wires are crimped into one ground eyelet terminal, check for proper crimps. Make sure all of the wires are clean, securely fastened and
providing a good ground path. If multiple wires are cased in one eyelet make sure no ground wires have excess wire insulation.
For detailed ground distribution information, refer to "Ground Distribution". See: Diagrams/Electrical Diagrams/Power and Ground Distribution/System
Diagram/Ground Distribution/Main Harness
Work Flow
Work Flow Chart