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Home >> Jaguar >> 2000 >> XJR >> Repair and Diagnosis >> Engine Performance >> System >> Engine Controls - Self-Diagnostics >> Diagnostic Trouble Code Identification >> DTC P1643: Controller Area Network TCM Token Message Missing >> System Default Action
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System Default Action

When fault is set, ECM limits throttle to approximately 30 percent and inhibits cruise control (torque reduction request data missing results in harsh transmission shifts).