LEMON Manuals: Even more car manuals for everyone
Home >> Volvo >> 2010 >> XC90 V8 >> Repair and Diagnosis >> Electrical >> Motors, Switches, Relays >> Electrical - Symptom Related Diagnostic Procedures - 2 Of 2 >> Checking The Lock Function Of The Trunk Lid (2003-04) >> Checking The Lock Function Of The Trunk Lid >> Checking The Power Supply

Checking The Power Supply

Remove the relay for unlocking 2/67 (RMI 20) from the integrated relay/fusebox in the cargo compartment.

Check the cable between terminal #2 the cable and connector and terminal #3 on the relay base. Check for an open-circuit.

If a fault is detected, check in particular the intermediate connector in the cable harness. Check for contact resistance and oxidation.

If no fault is detected, measure the resistance between terminal #4 in the relay base and ground.

In both cases the ohmmeter should read 0 ohms.

If the value is incorrect, replace the rear electronic module (REM).

Other information 

Fig 1: Identifying Connector Terminals
GLL104074Courtesy of VOLVO CARS CORPORATION
Fig 2: Identifying Ohmmeter
GLL101042Courtesy of VOLVO CARS CORPORATION
Fig 3: Identifying Relays
GLL104090Courtesy of VOLVO CARS CORPORATION