Home >> Jaguar >> 2012 >> XJ Base >> Repair and Diagnosis >> Quick Lookups >> DTC Index >> Diagnostic Trouble Code Index DTC: Integrated Suspension Control Module -- XJ/X351 >> DIAGNOSTIC TROUBLE CODE (DTC) INDEX DTC: Integrated Suspension Control Module >> Description And Operation >> Integrated Suspension Control Module (ISCM) >> DTC C1A18-64: Pressure Increase Too Rapid When Filling Reservoir - Signal plausibility failure >> Possible Causes