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Home >> Volvo >> 2010 >> XC90 V8 >> Repair and Diagnosis >> Accessories & Equipment >> Headlights >> Electrical - Symptom Related Diagnostic Procedures - 2 Of 2 >> Checking The Lock Function Of The Fuel Tank Filler Cover (2003-04) >> Checking The Lock Function Of The Fuel Tank Filler Cover >> Checking For A Short-Circuit

Checking For A Short-Circuit

Measure the resistance between the fuse holder secondary side (left) and ground.

The ohmmeter should read infinite resistance.

If the value is correct, replace the fuse.

NOTE: The fault could be intermittent.

Fault-trace all affected relay circuits for a short-circuit to ground if the value is incorrect.

HINT: Replace fuse. 

HINT: If the fuse blows immediately the short-circuit is in the relay power cable. 

HINT: If the fuse blows when the relevant relay is activated, the short-circuit is in the component power supply cable 

HINT: The relay circuits affected are from relays 2/111, 2/112, 2/113, 2/114, 2/115, 2/56, 2/59 and 2/67. 

Other information 

Fig 1: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS CORPORATION
Fig 2: Identifying Relays
GLL104090Courtesy of VOLVO CARS CORPORATION