Checking wiring and components

Check that the "Rear windshield defroster" relay 2/82 is correctly installed.

Check the rear electronic module connector and relay terminal 2/82 for contact resistance and oxidation according to Contact resistance and oxidation and for loose connections according to Loose connections (terminals) .

Check the cable between rear electronic module terminal D1 (#B01) and "Rear windshield defroster" relay 2/82 terminal 2 for an intermittent short-circuit to supply voltage according to Short-circuit to supply voltage, intermittent faults and an intermittent open-circuit according to Open-circuit, intermittent faults .

Other information:

For -2003, see Signal specification
For 2004, see Signal specification
To connect the breakout box, see Connecting the breakout box .
When the relay is installed and activated, the voltage at the relay guide 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.