Home >> Volvo >> 2004 >> S60 Base, 2.5 59, AWD >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) - Diagnostic Trouble Codes And Associated Procedures - 13 Of 14 >> ECM-9520: Accelerator Pedal (AP) Position Sensor, Analog Signal. Signal Too Low (B5234T3; 2002-2004) >> Signal too low