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Home › Jaguar › 2000 › XJR › Repair and Diagnosis › Engine Performance › System › Engine Controls - Self-Diagnostics › Diagnostic Trouble Code Identification › DTC P1144: Air Assist Close Valve Circuit Malfunction › System Default Action

System Default Action

When Check Engine Indicator is activated (DTC logged; second trip), ECM inhibits AACV range/performance diagnostic monitoring.

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