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Home >> Volvo >> 2014 >> XC90 3.2, FWD >> Repair and Diagnosis >> Accessories & Equipment >> Exterior Lights >> Electrical - Symptom Related Diagnostic Procedures - 1 Of 2 >> Checking Dipped Headlamp (2003-04) >> Checking Low Beam >> Checking The Wiring And The Relay

Checking The Wiring And The Relay

Check the signal cables to the low beam. Check for an open-circuit. Check for contact resistance and oxidation.

Check the relay (2/62).

HINT: The voltage over the relay must be 12 V on pins #1 and #3 when the low beam is switched on. 

Check the cable between terminal #3 and fuse 2, fusebox in the engine compartment (11B/2).

Check that fuse is intact.

Check the connector.

Check the cable between relay #1 (2/62) and shunt low beam #3 (20/27).

Check shunt (20/27).

HINT: The voltage must be 12 V at the shunt terminals, i. e. #3 and #2. 

Check the cable between shunt low beam #2 (20/27) and fuses low beam.

Check that the fuses are intact.

HINT: Passenger compartment fuse no. 1 for left low beam and no. 2 for right low beam. 

Remedy as necessary.

Other information 

Fig 1: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS CORPORATION
Fig 2: Identifying Relays
GLL104048Courtesy of VOLVO CARS CORPORATION

Was a fault detected?