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Home >> Volvo >> 2004 >> S80 Base, 2.5 59, FWD >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Control Module (ECM) Diagnostic Trouble Codes - 6 Of 11 >> ECM-4000 Canister Purge (Cp) Valve. Signal Too Low. Intermittent Fault (B5254T2; 2004) >> Signal too low. Intermittent fault >> Checking the wiring

Checking the wiring

Check the signal cable between control module terminal #A9 (#A9) and evaporative emission system (EVAP) valve terminal 2. Check for an intermittent short-circuit to ground.

Other information: 

Fig 1: Identifying Evaporative Emission System (EVAP) Valve Connector Terminals
GLL104075Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 3: Identifying Canister Purge (CP) Valve
GLL100939Courtesy of VOLVO CARS OF NORTH AMERICA.