Checking the wiring and component

Check the cable between rear electronic module terminal #D1 (terminal #B01) and "Rear windshield defroster" relay 2/82 terminal #2. Check for a short-circuit to supply voltage.

Check the relay terminal, in particular relay guide 2/82 terminal #2, for a short-circuit to supply voltage.

Remedy as necessary.

Try a new relay if no faults are found.

Other information: 

• For further information about signals and other values, 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 must be 0 V
• See Checking wiring and terminals. Permanent fault .

Fig 1: Identifying Voltage Display

Courtesy of VOLVO CARS OF NORTH AMERICA.

Fig 2: Identifying Relays

Courtesy of VOLVO CARS OF NORTH AMERICA.

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  Refer to Verification