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Home >> Volvo >> 2007 >> S40 Base, 2.4 38, Automatic >> Repair and Diagnosis >> Engine Performance >> System >> Engine Control Module (ECM) Diagnostic Trouble Codes - 4 Of 10 (544 Body) >> ECM-2840: Front Heated Oxygen Sensor (Ho2S), Bank 1. Faulty Signal (B5254T3; 2004) >> Signal Too High / Signal Missing / Faulty Signal >> Verification >> Verification

Signal Too High / Signal Missing / Faulty Signal: Verification: Verification

HINT: After carrying out the repair, check that the fault has been remedied. 

Fig 1: Engine Start Verification
GLL101037Courtesy of VOLVO CARS OF NORTH AMERICA.

Is the fault status "No fault detected"?