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Plymouth Sundance Wiring Harness: Identification, Repair, and Performance Upgrades

"The Plymouth Sundance wiring harness is the central nervous system of the P-body platform, responsible for distributing power and signals between the engine controller, sensors, and interior electronics. For 2026, maintaining these vintage systems requires identifying whether your vehicle uses the early SMEC or later SBEC computer systems, verifying ground integrity, and inspecting the bulkhead connector for terminal corrosion or heat-induced plastic fatigue. The Plymouth Sundance, produced between 1987 and 1994, represents a pivotal era in Chrysler’s electrical engineering. As these vehicles age into their fourth decade, the wiring harness o..."

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