Home >> Volvo >> 2009 >> S80 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> Testing & Diagnosis >> Engine Control Module (ECM) Diagnostic Trouble Codes - 8 Of 11 >> ECM-P151B68 Idle Speed Control - Rpm Lower Than Expected. Algorithm Based Failures. Event Information (B6304T2; 2008-2009) >> Fault-Tracing Information