Checking the wires and components

Check that relay for "rear collapsible head restraint" (location 2/75) is correctly installed.

Check relay connection (2/75) for contact resistance and oxidation as described in Contact resistance and oxidation , and for a loose contact as described in Loose connections (terminals) .

Additional information:

For -2003, see Signal specification
For 2004, see Signal specification
To connect the test box, see Connecting the breakout box
To access the control unit, see Integrated relay/fusebox cargo compartment/Rear electronic module (REM), replacing
When relay is installed and activated, relay control voltage (2) should be 0 V.

Fig 1: Identifying Ohm Meter

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Relays

Courtesy of VOLVO CARS OF NORTH AMERICA.