Home >> Volvo >> 2004 >> V40 Base >> Repair and Diagnosis (Single Page) >> Engine Performance >> System >> Dynamic Stability Assist (DSA) & Engine Control Module (ECM) Diagnostic Trouble Codes >> DSA-231: Throttle Position (TP) Sensor Signal. Signal Missing. Permanent Fault (B4204T4; 2003-2004) >> Signal missing. Permanent fault