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Home >> Volvo >> 2000 >> S40 >> Repair and Diagnosis >> Electrical >> Gauges >> Combined Instrument (CI) & Driver Information Module (Dim) Diagnostic Trouble Codes (644 Body) >> CI-02 Fuel Level Sensor. Signal Too High (2000-2002) >> Signal too high >> Checking components and wiring

Checking components and wiring

HINT: If the cable and the combined instrument panel are fault free the voltage between terminals A and C on the fuel level sensor connector should be approximately 5 V. 

Check the fuel level sensor resistance between terminal A and terminal C in the fuel level sensor connector. Check the connector for Contact resistance and oxidation .

Check the signal cable between the fuel level sensor terminal A and the combined instrument panel terminal B17 (#A47) for a short-circuit to supply voltage according to Short-circuit to supply voltage. Permanent faults , and an open-circuit according to Open-circuit, permanent faults .

Remedy as necessary.

Other information: 

Fig 1: Identifying Terminals
GLL112506Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 2: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS OF NORTH AMERICA.
Fig 3: Identifying Fuel Pump
GLL111972Courtesy of VOLVO CARS OF NORTH AMERICA.