LEMON Manuals: Even more car manuals for everyone
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-4020 Fuel Tank Pressure Sensor. Signal Too Low. Intermittent Fault (B6284T; 1999-2001) >> Signal too low. Intermittent fault >> Checking cables

Checking cables

Check fuel tank pressure sensor connector for contact resistance and oxidation according to Contact resistance and oxidation and loose connections according to Loose connections (terminals) . Check particularly for any damage.

Check signal cable between control module #B31 (#B41) and fuel tank pressure sensor connector #2 for an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults .

Check power supply cable between control module #B10 (#B20) and fuel tank pressure sensor connector #3 for an intermittent short-circuit to ground according to Short-circuit to ground, intermittent faults .

Other information 

Fig 1: Identifying Fuel Tank Pressure Sensor
GLL104088Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.